var IE = false;
var NS = false;
var FX = false;
var OP = false;
var DHTML_support = false;
var navigatorVersion = 0;
checkBrowser();

function checkBrowser() {
    var userAgent = navigator.userAgent;
    if (userAgent.indexOf('Netscape') != -1) {
        navigatorVersion = parseFloat(userAgent.substring(userAgent.indexOf('Netscape') + 9, userAgent.length));
        NS = true;
    }
    else if (userAgent.indexOf('MSIE') != -1) {
        navigatorVersion = parseFloat(userAgent.substring(userAgent.indexOf('MSIE') + 4, userAgent.length));
        IE = true;
        DHTML_support = navigatorVersion >= 5;
    }
    else if (userAgent.indexOf('Firefox') != -1) {
        navigatorVersion = parseFloat(userAgent.substring(userAgent.indexOf('Firefox') + 1, userAgent.length));
        FX = true;
    }
    else if (userAgent.indexOf('Opera') != -1) {
        navigatorVersion = parseFloat(userAgent.substring(userAgent.indexOf('Opera') + 1, userAgent.length));
        OP = true;
    }

}

// Title: Tigra Tree
// Description: See the demo at url
// URL: http://www.softcomplex.com/products/tigra_menu_tree/
// Version: 1.1
// Date: 11-12-2002 (mm-dd-yyyy)
// Notes: This script is free. Visit official site for further details.


function tree (a_items, a_template) {

	this.a_tpl      = a_template;
	this.a_config   = a_items;
	this.o_root     = this;
	this.a_index    = [];
	this.o_selected = null;
	this.n_depth    = -1;

	var o_icone = new Image(),
		o_iconl = new Image();
	o_icone.src = a_template['icon_e'];
	o_iconl.src = a_template['icon_l'];
	a_template['im_e'] = o_icone;
	a_template['im_l'] = o_iconl;
	for (var i = 0; i < 64; i++)
		if (a_template['icon_' + i]) {
			var o_icon = new Image();
			a_template['im_' + i] = o_icon;
			o_icon.src = a_template['icon_' + i];
		}

	this.toggle = function (n_id) {	var o_item = this.a_index[n_id]; o_item.open(o_item.b_opened) };
	this.select = function (n_id) { return this.a_index[n_id].select(); };
	this.mout   = function (n_id) { this.a_index[n_id].upstatus(true) };
	this.mover  = function (n_id) { this.a_index[n_id].upstatus() };

	this.a_children = [];
	for (var i = 0; i < a_items.length; i++)
		new tree_item(this, i);

	this.n_id = trees.length;
	trees[this.n_id] = this;

	for (var i = 0; i < this.a_children.length; i++) {
		document.write(this.a_children[i].init());
		this.a_children[i].open();
	}

	this.restoreStatus = function (tree_status) {
        // Restore tree status
        if (tree_status && tree_status != "null") {
            // Open tree branch
            var node = this.a_index[tree_status];
            this.openItem(node);
        } else {
            var cookie = document.cookie.split(';');
            for (var i = 0; i < cookie.length; i++) {
              var cookie_value = cookie[i].split('=');
              if (cookie_value[0] == "tree_open")
                var node_index = cookie_value[1];
                if (node_index) {
                    // Open tree branch
                    var node = this.a_index[node_index];
                    this.openItem(node);
                    // Select node
                    //trees[node.o_root.n_id].select(node.n_id);
                    return;
                }
            }
        }
    };

	this.openItem = function (node) {
        // Open tree branch
        while (node) {
            trees[node.o_root.n_id].toggle(node.n_id);
            node = node.o_parent;
        }
    };

	this.getItem = function (index) {
        return this.a_index[index];
    };
}
function tree_item (o_parent, n_order) {

	this.n_depth  = o_parent.n_depth + 1;
	this.a_config = o_parent.a_config[n_order + (this.n_depth ? 2 : 0)];
	if (!this.a_config) return;

	this.o_root    = o_parent.o_root;
	this.o_parent  = o_parent;
	this.n_order   = n_order;
	this.b_opened  = !this.n_depth;

	this.n_id = this.o_root.a_index.length;
	this.o_root.a_index[this.n_id] = this;
	o_parent.a_children[n_order] = this;

	this.a_children = [];
	for (var i = 0; i < this.a_config.length - 2; i++)
		new tree_item(this, i);

	this.get_icon = item_get_icon;
	this.open     = item_open;
	this.select   = item_select;
	this.init     = item_init;
	this.upstatus = item_upstatus;
	this.is_last  = function () { return this.n_order == this.o_parent.a_children.length - 1 };
}

function item_open (b_close) {
	var o_idiv = get_element('i_div' + this.o_root.n_id + '_' + this.n_id);
	if (!o_idiv) return;

	if (!o_idiv.innerHTML) {
		var a_children = [];
		for (var i = 0; i < this.a_children.length; i++)
			a_children[i]= this.a_children[i].init();

	o_idiv.innerHTML = a_children.join('');
	}
	o_idiv.style.display = (b_close ? 'none' : 'block');

	this.b_opened = !b_close;
	var o_jicon = document.images['j_img' + this.o_root.n_id + '_' + this.n_id],
		o_iicon = document.images['i_img' + this.o_root.n_id + '_' + this.n_id];
	if (o_jicon) o_jicon.src = this.get_icon(true);
	if (o_iicon) o_iicon.src = this.get_icon();
	this.upstatus();
}

function item_select (b_deselect) {
	if (!b_deselect) {
        for (var i = 0; i < document.forms.length; i++) {
            var form = document.forms[i];
            for (var j = 0; j < form.elements.length; j++) {
                var item = form.elements[j];
                if (item.name == "tree_status")
                    item.value = this.n_id;
            }
        }
        document.cookie="tree_open="+this.n_id;
        fireItemSelected(this);
		var o_olditem = this.o_root.o_selected;
		this.o_root.o_selected = this;
		if (o_olditem) o_olditem.select(true);
	}
	var o_iicon = document.images['i_img' + this.o_root.n_id + '_' + this.n_id];
	if (o_iicon) o_iicon.src = this.get_icon();
	get_element('i_txt' + this.o_root.n_id + '_' + this.n_id).style.fontWeight = b_deselect ? 'normal' : 'bold';

	this.upstatus();
	return Boolean(this.a_config[1]);
}

function item_upstatus (b_clear) {
	//window.setTimeout('window.status="' + (b_clear ? '' : this.a_config[0] + (this.a_config[1] ? ' ('+ this.a_config[1] + ')' : '')) + '"', 10);
	//window.setTimeout('window.status="' + (b_clear ? '' : this.a_config[0]) + '"', 10);
}

function item_get_icon (b_junction) {
	return this.o_root.a_tpl['icon_' + ((this.n_depth ? 0 : 32) + (this.a_children.length ? 16 : 0) + (this.a_children.length && this.b_opened ? 8 : 0) + (!b_junction && this.o_root.o_selected == this ? 4 : 0) + (b_junction ? 2 : 0) + (b_junction && this.is_last() ? 1 : 0))];
}

var trees = [];
get_element = document.all ?
	function (s_id) { return document.all[s_id] } :
	function (s_id) { return document.getElementById(s_id) };
function item_init () {
	var a_offset = [],
		o_current_item = this.o_parent;
	for (var i = this.n_depth; i > 1; i--) {
		a_offset[i] = '<img src="' + this.o_root.a_tpl[o_current_item.is_last() ? 'icon_e' : 'icon_l'] + '" border="0" align="absbottom">';
		o_current_item = o_current_item.o_parent;
	}
	return '<table cellpadding="0" cellspacing="0" border="0"><tr><td nowrap>' + (this.n_depth ? a_offset.join('') + (this.a_children.length
		? '<a href="#" onclick="trees[' + this.o_root.n_id + '].select(' + this.n_id + ');return trees[' + this.o_root.n_id + '].toggle(' + this.n_id + ')" onmouseover="trees[' + this.o_root.n_id + '].mover(' + this.n_id + ')" onmouseout="trees[' + this.o_root.n_id + '].mout(' + this.n_id + ')"><img src="' + this.get_icon(true) + '" border="0" align="absbottom" name="j_img' + this.o_root.n_id + '_' + this.n_id + '"></a>'
		: '<img src="' + this.get_icon(true) + '" border="0" align="absbottom">') : '')
		+ '<a href="#" target="' + this.o_root.a_tpl['target'] + '" onclick="trees[' + this.o_root.n_id + '].toggle(' + this.n_id + ');return trees[' + this.o_root.n_id + '].select(' + this.n_id + ')" onmouseover="trees[' + this.o_root.n_id + '].mover(' + this.n_id + ')" onmouseout="trees[' + this.o_root.n_id + '].mout(' + this.n_id + ')" class="t' + this.o_root.n_id + 'i" id="i_txt' + this.o_root.n_id + '_' + this.n_id + '"><img src="' + this.get_icon() + '" border="0" align="absbottom" name="i_img' + this.o_root.n_id + '_' + this.n_id + '" class="t' + this.o_root.n_id + 'im">' + this.a_config[0] + '</a></td></tr></table>' + (this.a_children.length ? '<div id="i_div' + this.o_root.n_id + '_' + this.n_id + '" style="display:none"></div>' : '');
}

function fireItemSelected(item) {
}


/*
	Feel free to use your custom icons for the tree. Make sure they are all of the same size.
	User icons collections are welcome, we'll publish them giving all regards.
*/

var TREE_TPL = {
	'target'  : '_self',	// name of the frame links will be opened in
							// other possible values are: _blank, _parent, _search, _self and _top

	'icon_e'  : '/Clinic_1.0.00/collage/tree/icons/empty.gif',       // empty image
	'icon_l'  : '/Clinic_1.0.00/collage/tree/icons/empty.gif',       // vertical line
	
    'icon_32' : '/Clinic_1.0.00/collage/tree/icons/base.gif',        // root leaf icon normal
    'icon_36' : '/Clinic_1.0.00/collage/tree/icons/base.gif',        // root leaf icon selected
	
	'icon_48' : '/Clinic_1.0.00/collage/tree/icons/folder.gif',      // root icon normal
	'icon_52' : '/Clinic_1.0.00/collage/tree/icons/foldersel.gif',   // root icon selected
	'icon_56' : '/Clinic_1.0.00/collage/tree/icons/folder.gif',      // root icon opened
	'icon_60' : '/Clinic_1.0.00/collage/tree/icons/foldersel.gif',   // root icon selected
	
	'icon_16' : '/Clinic_1.0.00/collage/tree/icons/folder.gif',      // node icon normal
	'icon_20' : '/Clinic_1.0.00/collage/tree/icons/foldersel.gif',   // node icon selected
	'icon_24' : '/Clinic_1.0.00/collage/tree/icons/folderopen.gif',  // node icon opened
	'icon_28' : '/Clinic_1.0.00/collage/tree/icons/foldersel.gif',   // node icon selected opened

	'icon_0'  : '/Clinic_1.0.00/collage/tree/icons/page.gif',        // leaf icon normal
	'icon_4'  : '/Clinic_1.0.00/collage/tree/icons/pagesel.gif',     // leaf icon selected
	
	'icon_2'  : '/Clinic_1.0.00/collage/tree/icons/empty.gif',       // junction for leaf
	'icon_3'  : '/Clinic_1.0.00/collage/tree/icons/empty.gif',       // junction for last leaf
	'icon_18' : '/Clinic_1.0.00/collage/tree/icons/plus.gif',        // junction for closed node
	'icon_19' : '/Clinic_1.0.00/collage/tree/icons/plus.gif',        // junctioin for last closed node
	'icon_26' : '/Clinic_1.0.00/collage/tree/icons/minus.gif',       // junction for opened node
	'icon_27' : '/Clinic_1.0.00/collage/tree/icons/minus.gif'        // junctioin for last opended node
};


// Project     : Collage Portal Server
// Module      : Remote scripting
// Created on  : March 22 2005
// CVS Id      : $Id: httprequest.jsp,v 1.1 2007/11/11 18:58:06 carlos Exp $
// Description : Remote scripting HTTP request/reponse JavaScript mechanism based on
//              'id' property of some HTML tags.
//
// Polymita Technologies. All rights reserved.

// HTTP request connection object.
var httpConnection;

// Id of the HTML element where response will be inserted.
var htmlTagId;

// HTTP request via javascript.
// @param method GET or POST.
// @param url URl to be invoked it it contains scripts, they must use DEFER
// @params String of parameters to be added to the request at the end of the URL.
// @param tagId Id of the HTML element where response will be inserted.
function httpRequest(method, url, params, tagId) {
    if (tagId == null) {
        var separator = '?';
        if (url.indexOf(separator) != -1) separator = '&';
        document.location = url + separator + params;
        return;
    }
    htmlTagId = tagId;
    // Branch for native XMLHttpRequest object
    if (window.XMLHttpRequest) {
        httpConnection = new XMLHttpRequest();
        if (httpConnection) doSend(httpConnection, method, url, params);
    }
    // Branch for IE/Windows ActiveX version
    else if (window.ActiveXObject) {
        httpConnection = new ActiveXObject('Microsoft.XMLHTTP');
        if (httpConnection) doSend(httpConnection, method, url, params);
    }
    else return true;
    return false;
}

function doSend(httpConnection, method, url, params) {
    //alert("Send ("+method+") "+url+"   "+params);
    url = url.replace(/&amp;/g,'&');
    document.body.style.cursor = 'wait';
    httpConnection.onreadystatechange = httpResponse;
    if (method == 'POST') {
        if (!remoteScriptingSupported) {
            doSend(httpConnection, 'GET', url, params);
            return;
        }
        httpConnection.open(method, url, true);
        httpConnection.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        httpConnection.send(params);
    }
    else if (method == 'GET') {
        var separator = '?';
        if (url.indexOf(separator) != -1) separator = '&';
        var urlParams = url + separator + params;
        httpConnection.open(method, urlParams, true);
        httpConnection.send(null);
    }
    else {
        alert('Invalid Method ' + method);
    }
}

// HTTP response. Invoked after httpRequest completion.
function httpResponse() {
    // Only if req shows "complete"
    if (httpConnection.readyState == 4) {
        // only if "OK"
        if (httpConnection.status == 200) {
            var element = document.getElementById(htmlTagId);
            var newElement = document.createElement(element.tagName);
            newElement.id = htmlTagId;
            newElement.innerHTML = httpConnection.responseText;
            element.parentNode.replaceChild(newElement, element);
            document.body.style.cursor = 'default';
        }
        else {
            alert("XmlHttpRequest: There was a problem retrieving the data:\n" + httpConnection.status + ' ' + httpConnection.statusText);
        }
    }
}

/*function evalInsiderScripts(element) {
    var scripts = element.getElementsByTagName("script");
    var i;
    for (i = 0; i < scripts.length; i++) {
        if (scripts[i].innerHTML != "") {
            eval(scripts[i].innerHTML);
        }
        if (scripts[i].src != "") {
            var e = document.createElement("script");
            e.src = scripts[i].src;
            e.type = "text/javascript";
            scriptLoadedWatcher = false;
            document.getElementsByTagName("head")[0].appendChild(e);
        }
    }
} */

function supportsRemoteScripting() {
    if (window.XMLHttpRequest) {
        httpTmpConnection = new XMLHttpRequest();
        try {
            httpTmpConnection.open('POST', '/', true);
            httpTmpConnection.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        }
        catch(e) {
            // setRequestHeader is not implemented in Opera 8.00 thus you cannot inform
            // the server about the content type of the data you are POSTing with the
            // send method.
            return false;
        }
        return true;
    }
    // Branch for IE/Windows ActiveX version
    else if (window.ActiveXObject) {
        return true;
    }
    else {
        return false;
    }
}

var remoteScriptingSupported = supportsRemoteScripting();

// Returns a string with the specified form fields formatted in HTTP get format.
function getFormFieldsInHttpGetFormat(form) {
    var params = '';
    //alert(form.length+ " with remoteScriptingSupported = "+remoteScriptingSupported);
    for (var i = 0; i < form.length; i++) {
        field = form[i];
        if (field.type == 'hidden') {
            if (i > 0) params += '&';
            params += escape(field.name) + '=' + escape(field.value);
        }
        else if ((field.type == 'text' || field.type == 'textarea') && remoteScriptingSupported) {
            if (i > 0) params += '&';
            params += escape(field.name) + '=' + escape(field.value);
        }
        else if ((field.type == 'checkbox' || field.type == 'radio') && remoteScriptingSupported) {
            if (i > 0) params += '&';
            if (field.checked) params += escape(field.name) + '=' + escape(field.value);
        }
        else if ((field.type == 'select-one' || field.type == 'select-multiple') && remoteScriptingSupported) {
            if (i > 0) params += '&';
            for (var j = 0; j < field.length; j++) {
                if (j != 0)params += '&';
                if (field[j].selected) {
                    value = field[j].value;
                    if (value == '') value = field[j].text;
                    params += escape(field.name) + '=' + escape(value);
                }
            }
        }
        else {
            //alert(field.name+ ' is '+ field.type);
        }
        //alert(params);
    }
    return params;
}


        
// Polymita Technologies. All rights reserved.

// Boundary for multipart forms.  DO NOT CHANGE IT !!!
var boundary = "Polymita_CollagePortals_AJAX_Boundary_" + new Date().getMilliseconds() * new Date().getMilliseconds() * new Date().getMilliseconds() + ";";
var ajaxAlertsEnabled = false;

/**
* Loads a given url into element with id tagId. If a body is specified, it uses multipart content-type
* to POST to the url.
*/
function ajaxRequest(url, body, tagId) {
    return ajaxRequest(url, body, tagId, null, null);
};

function ajaxRequest(url, body, tagId, onAjaxRequestScript, onAjaxResponseScript) {
    var ajaxHandler = new Object();
    url = url.replace(/&amp;/g,'&');
    ajaxHandler.ajaxRequestScript = onAjaxRequestScript;
    ajaxHandler.ajaxResponseScript = onAjaxResponseScript;
    if (ajaxAlertsEnabled) alert("ajax request: " + url + "\nbody:\n" + body + "\n\non " + tagId);
    beforeAjaxRequest();
    ajaxHandler.ajaxTarget = tagId;

    // Execute the ajaxRequestScript specified by client.
    if (onAjaxRequestScript != null) eval(onAjaxRequestScript);

    if (window.XMLHttpRequest) {
        ajaxHandler.ajaxReq = new XMLHttpRequest();
    }
    else if (window.ActiveXObject) {
        ajaxHandler.ajaxReq = new ActiveXObject('Microsoft.XMLHTTP');
    }

    ajaxHandler.ajaxResponse = function(){
        // Only if req shows "complete"
        var readyState, status;
        try{
            readyState = ajaxHandler.ajaxReq.readyState;
            if (readyState == 4)
                status = ajaxHandler.ajaxReq.status;
        }
        catch(e){
        }
        if (readyState == 4) {
            // only if "OK"
            if (status == 200) {
                if (ajaxHandler.ajaxReq.responseText.indexOf("<html>") != -1 && ajaxHandler.ajaxReq.responseText.indexOf("expired.jsp")==-1 ){
                    //alert("Portal response contains an html tag. Doing my best with "+ajaxHandler.ajaxReq.responseText);
                    // Just reload page, it may work
                    document.location.href = document.location.href;
                } else {
                    var element = document.getElementById(ajaxHandler.ajaxTarget);
                    var newElement = document.createElement(element.tagName);
                    newElement.id = element.id;
                    //alert("Setting "+ ajaxHandler.ajaxReq.responseText);
                    newElement.innerHTML = ajaxHandler.ajaxReq.responseText;
                    if (ajaxAlertsEnabled) alert("Set " + newElement.outerHTML);
                    element.parentNode.replaceChild(newElement, element);
                    // Execute the ajaxResponseScript specified by client.
                    if (ajaxHandler.ajaxResponseScript != null) eval(ajaxHandler.ajaxResponseScript);
                    try{
                        if ( tt_Init )
                            tt_Init(); /*Evaluate tooltips*/
                    } catch(e){/*Ignore errors on tooltip evaluation*/}
                }
            }
            afterAjaxRequest();
            ajaxHandler.ajaxTarget = '';
        }
    }

    var ajaxLoadingDivTimeout;
    function beforeAjaxRequest(){
       document.body.style.cursor = 'wait';
       ajaxLoadingDivTimeout = setTimeout('if(document.getElementById(\'ajaxLoadingDiv\'))document.getElementById(\'ajaxLoadingDiv\').style.display=\'block\'',100);
    }
    function afterAjaxRequest(){
        document.body.style.cursor = 'default';
        if ( ajaxLoadingDivTimeout ) clearTimeout(ajaxLoadingDivTimeout);
        document.getElementById('ajaxLoadingDiv').style.display='none';
    }

    var ajaxReq = ajaxHandler.ajaxReq;
    if (ajaxReq != null) {
        ajaxReq.onreadystatechange = ajaxHandler.ajaxResponse;
        if (body) {
            ajaxReq.open('POST', url, true);
            //XMLHttpRequest handles only UTF-8
            ajaxReq.setRequestHeader("Content-Type", "multipart/form-data; charset=UTF-8; boundary=" + boundary);
        } else {
            ajaxReq.open('GET', url, true);
        }
        if (ajaxAlertsEnabled)
            alert("Sending body:\n" + body);
        ajaxReq.send(body);
        if (ajaxAlertsEnabled)
            alert("Loading " + url + " into " + tagId);
        return false;
    }
    return true;
};

function getBody(element) {
    var body = '';
    if (element && element.name) {
        body += '--' + boundary + '\r\n';
        body += 'Content-Disposition: form-data; name="' + element.name + '"' + '\r\n\r\n';
        body += element.value + '\r\n';
    }
    return body;
};

/**
* Returns the body multipart representation for a form, adding an ajaxAction parameter.
*/
function getFormBody(form) {
    return getFormBody(form, true);
};

/**
* Returns the body multipart representation for a form, adding an ajaxAction parameter, depending on second parameter.
*/
function getFormBody(form, addAjaxParameter) {
    var body = '';
    for (var i = 0; i < form.length; i++) {
        field = form[i];
        if (!field.name || field.name=='')
            continue;
        if (field.type == 'checkbox' || field.type == 'radio') {
            if (field.checked)
                body += getBody(field);
        }
        else if ((field.type == 'select-one' || field.type == 'select-multiple')) {
            for (var j = 0; j < field.length; j++) {
                if (field[j].selected) {
                    value = field[j].value;
                    if (value == '') value = field[j].text;
                    body += '--' + boundary + '\r\n';
                    body += 'Content-Disposition: form-data; name="' + field.name + '"' + '\r\n\r\n';
                    body += value + '\r\n';
                }
            }
        }
        else {
            body += getBody(field);
        }
    }
    if(addAjaxParameter){
        if(ajaxAlertsEnabled)
            alert("Adding ajax parameter to form to be sent");
        body += '--' + boundary + '\r\n';
        body += 'Content-Disposition: form-data; name="ajaxAction"' + '\r\n\r\n';
        body += 'true\r\n';
    }
    else{
        if(ajaxAlertsEnabled)
            alert("Getting form body without ajax parameter: "+addAjaxParameter);
    }
    body += "--" + boundary;
    return body;
};

var ajaxPreviousHandlers = new Object();
var ajaxedElementIds = new Array();

function setAjaxTarget(element, targetId) {
    return setAjaxTarget(element, targetId,  null,  null);
};

function submitAjaxForm(form){
    if(form){
        if(form.onsubmit){
            var wasAjaxed = false;
            for(i=0;i<ajaxedElementIds.length;i++){
                if(ajaxedElementIds[i]==form.id){
                    wasAjaxed = true;
                    break;
                }
            }
            if(wasAjaxed)
                form.onsubmit();
            else if(form.onsubmit()) form.submit();
        }
        else form.submit();
    }
};

function sendFormToHandler(form, component, property){
    prepareFormForHandler(form, component, property);
    submitAjaxForm(form);
};

function prepareFormForHandler(form, component, property){
    var isPortletForm;
    var handler;
    var action;
    var pAction;
    for (var i = 0; i < form.length; i++) {
        var field = form[i];
        if (!field.name) continue;
        if(field.name=='mvchandler'){
            handler = field.value;
        }
        else if(field.name=='action'){
            action = field.value;
        }
        else if(field.name=='pAction'){
            pAction = field.value;
        }
    }
    isPortletForm = (handler == 'portals' && action == 'dispatch' && pAction!=null);
    if(isPortletForm){
        setFormInputValue(form, '_f:bean', component );
        setFormInputValue(form, '_f:prop', property );
        setFormInputValue(form, 'pAction', '_factory' );
    }
    else{
        setFormInputValue(form, 'mvchandler', 'factory' );
        setFormInputValue(form, 'action', 'set' );
        setFormInputValue(form, '_f:bean', component );
        setFormInputValue(form, '_f:prop', property );
    }
};

function getFormInputValue( form, name ){
    for (var i = 0; i < form.length; i++) {
        var field = form[i];
        if (!field.name) continue;
        if(field.name == name){
            return field.value;
        }
    }
    return null;
};

function setFormInputValue( form, name, value ){
    for (var i = 0; i < form.length; i++) {
        var field = form[i];
        if (!field.name) continue;
        if(field.name == name){
            field.value = value;
            return;
        }
    }
    var theHidden = document.createElement('input');
    theHidden.type = 'hidden';
    theHidden.name = name;
    theHidden.value = value;
    form.appendChild(theHidden);
};

function setAjaxTarget(element, targetId, onAjaxRequestScript, onAjaxResponseScript) {
    if (element.nodeName.toLowerCase() == "a") {
        ajaxedElementIds.push(element.id);
        var destination = element.href;
        if (element.onclick)
            eval('ajaxPreviousHandlers[\'' + element.id + '\']=element.onclick;');
        element.onclick = function f() {
            var clickReturn = true;
            eval(' if(ajaxPreviousHandlers[\'' + this.id + '\']) clickReturn = ajaxPreviousHandlers[\'' + this.id + '\']();');
            if (clickReturn != false) {
                var ret = false;
                eval("ret = ajaxRequest('" + destination + "&ajaxAction=true', null, '" + targetId + "', '" + onAjaxRequestScript + "', '" + onAjaxResponseScript + "')");
                return ret;
            } else {
                return false;
            }
        };
    }
    else  if (element.nodeName.toLowerCase() == "form") {
        var containsFileInputs = false;
        for( elementIndex=0; elementIndex < element.elements.length; elementIndex++){
            var inputElement = element.elements[elementIndex];
            if( inputElement.type == 'file' ){
                containsFileInputs = true;
                break;
            }
        }
        if( containsFileInputs && !isFileUploadSupported()){
            if(ajaxAlertsEnabled)alert('Form containing file inputs cannot be set to use Ajax');
            for(i=0; i < ajaxedElementIds.length; i++){
                if ( ajaxedElementIds[i] == element.id ) {
                    ajaxedElementIds[i] = null;
                }
            }
            return false;
        }
        else
            if(ajaxAlertsEnabled)alert('Form not containing file inputs can be set to use Ajax');

        ajaxedElementIds.push(element.id);

        if (element.onsubmit) {
            eval('ajaxPreviousHandlers[\'' + element.id + '\']=element.onsubmit;');
        }
        //alert("Putting new onsubmit for "+element.id);
        element.onsubmit = function f() {
            //alert("submitting... ");
            var clickReturn = true;
            eval(' if(ajaxPreviousHandlers[\'' + this.id + '\']) clickReturn = ajaxPreviousHandlers.' + this.id + '();');
            //alert("Previous handler says "+clickReturn);
            if (clickReturn != false) {
                var ret = false;
                eval("ret = ajaxRequest('Controller', getFormBody(this, true), '" + targetId + "', '" + onAjaxRequestScript + "', '" + onAjaxResponseScript + "');");
                return ret;
            } else {
                return false;
            }
        }
    } else {
        if (ajaxAlertsEnabled)
            alert("Unsupported element nodeName " + element.nodeName);
    }
    return true;
};

/**
* Modifies an item (form or anchor), so if it is inside a portlet, it loads inside the portlet area.
*/
function doSetAjax(elementId) {
    return doSetAjax(elementId, null, null);
};
/**
* Modifies an item (form or anchor), so if it is inside a portlet, it loads inside the portlet area.
*/
function doSetAjax(elementId, onAjaxRequestScript, onAjaxResponseScript) {
    if (window.XMLHttpRequest || window.ActiveXObject) {
        if (ajaxAlertsEnabled) alert("Looking for portlet enclosing " + elementId)
        var element = document.getElementById(elementId);
        if (!element) {
            if (ajaxAlertsEnabled) alert("No item with id " + elementId + " found.");
            return;
        }
        var parentElement = element.parentNode;
        while (parentElement) {
            if (parentElement && parentElement.id && parentElement.id.indexOf("content_for_portlet_") == 0) {
                if (ajaxAlertsEnabled) alert("Found " + parentElement.id);
                return setAjaxTarget(element, parentElement.id, onAjaxRequestScript, onAjaxResponseScript);
            }
            parentElement = parentElement.parentNode;
        }
        if (ajaxAlertsEnabled) {
            alert("Cannot find portlet envolving item with id " + elementId);
        }
    }
};

function setAjax(elementId) {
    return setAjax(elementId, null, null);
};

function setAjax(elementId, onAjaxRequestScript, onAjaxResponseScript) {
    if (NS || IE || OP || FX) setTimeout("doSetAjax('" + elementId + "', '" + onAjaxRequestScript + "', '" + onAjaxResponseScript + "')", 1);
};

function isFileUploadSupported() {
    return false;
};

function refreshPortlet(id) {
    setTimeout("doRefreshPortlet('"+ id + "')",10);
};

function doRefreshPortlet(id) {
    var formm = document.getElementById('refreshFormForPortlet'+id);
    submitAjaxForm(formm);
};

function dropPortletToRegion(regionId, portletId, position){
    if (portletId.indexOf('Portlet:') == 0){
        document.portletDragAndDropToRegion.portletId.value=portletId.substring('Portlet:'.length);
        document.portletDragAndDropToRegion.region.value=regionId;
        document.portletDragAndDropToRegion.position.value=position;
        document.portletDragAndDropToRegion.submit();
    } else {
        document.instanceDragAndDropToRegion.portletId.value=portletId;
        document.instanceDragAndDropToRegion.region.value=regionId;
        document.instanceDragAndDropToRegion.position.value=position;
        document.instanceDragAndDropToRegion.submit();
    }
};

var currentExpandedDiv = null; 
var maxVisibleItems = 7; 
var expandedNode = null; 

function popupExpand(id){
    var elm = document.getElementById(id);
    if(!elm) return;
    if(elm.style.display=='block'){
        elm.style.display='none';
    } else {
        elm.style.display='block';
    }
    if (currentExpandedDiv!=null) {
        document.getElementById(currentExpandedDiv).style.display='none';
        document.getElementById('portlet_navigation_right').style.display='none';
        document.getElementById('portlet_navigation_left').style.display='none';
        document.getElementById('portlet_navigation_right_disabled').style.display='none';
        document.getElementById('portlet_navigation_left_disabled').style.display='none';
        currentExpandedDiv=null;
    }
};

function manageBoldness(id) {
    document.getElementById("parent_"+id).style.fontWeight='bold';
    if (expandedNode != null && expandedNode != "parent_"+id) document.getElementById(expandedNode).style.fontWeight='normal';
    expandedNode = "parent_"+id;
};

function showSection(amount) {
    if (amount>0 && isLastSection()) return;
    if (amount<1 && isFirstSection()) return;
    clearSection();
    var currentSection = Number(document.getElementById(currentExpandedDiv+"_current_section").value);
    var nextSection = currentSection + Number(amount);
    var maxItems = Number(document.getElementById(currentExpandedDiv+"_maxUid").value);
    var start;
    var end;
    if (currentSection < nextSection) {
        end = nextSection * maxVisibleItems;
        start = end - maxVisibleItems;
    } else {
        end = (currentSection + Number(amount)) * maxVisibleItems;
        start = end - maxVisibleItems;
    }
    var i;
    for (i=start; (i<end && i<maxItems); i++) {
        document.getElementById(currentExpandedDiv+"_displayable_"+i).style.display="block";
    }
    document.getElementById(currentExpandedDiv+"_current_section").value=nextSection;

    if(!isLastSection()) {
        document.getElementById('portlet_navigation_right').style.display='block';
        document.getElementById('portlet_navigation_right_disabled').style.display='none';
    } else {
        document.getElementById('portlet_navigation_right').style.display='none';
        document.getElementById('portlet_navigation_right_disabled').style.display='block';
    }
    if(!isFirstSection()) {
        document.getElementById('portlet_navigation_left').style.display='block';
        document.getElementById('portlet_navigation_left_disabled').style.display='none';
    } else {
        document.getElementById('portlet_navigation_left').style.display='none';
        document.getElementById('portlet_navigation_left_disabled').style.display='block';
    }
};

function goToSection(num) {
    var currentSection = Number(document.getElementById(currentExpandedDiv+"_current_section").value);
    showSection(num-currentSection);
};

function isFirstSection() {
    if (Number(document.getElementById(currentExpandedDiv+"_current_section").value)==1) return true;
    return false;
};

function isLastSection() {
    var currentSection = Number(document.getElementById(currentExpandedDiv+"_current_section").value);
    return currentSection == getLastSection();
};

function getLastSection() {
    var maxItems = Number(document.getElementById(currentExpandedDiv+"_maxUid").value);

    var section = parseInt(maxItems/maxVisibleItems);
    if (maxItems % maxVisibleItems > 0) section ++;
    return section;
};

function clearSection() {
    var currentSection = Number(document.getElementById(currentExpandedDiv+"_current_section").value) * maxVisibleItems;
    var maxItems = Number(document.getElementById(currentExpandedDiv+"_maxUid").value);
    var start = currentSection - maxVisibleItems;

    var i;
    for (i=start; i<currentSection && i<maxItems; i++) {
        document.getElementById(currentExpandedDiv+"_displayable_"+i).style.display="none";
    }
};

function doItDraggable(id){
    var dragItem = new Draggable(id, {
        ghosting:true,
        onDrag: function(){
            if( document.selection )
                document.selection.empty();
        },
        onStart: function(draggable, event){
            showPortletDropZones();showRegionDropZones();
        },
        onEnd: function(draggable, event){
            hidePortletDropZones();
        },
        revert:true});
};

function expandPortletDiv(id) {
    var currentDiv = document.getElementById(id);
    if (currentDiv != null) {
        if (currentExpandedDiv != null) {
            document.getElementById(currentExpandedDiv).style.display='none'
            goToSection(1);
        }
        document.getElementById(id).style.display='block'
        currentExpandedDiv = id;
        document.getElementById('portlet_navigation_right').style.display='none';
        document.getElementById('portlet_navigation_left').style.display='none';
        document.getElementById('portlet_navigation_left_disabled').style.display='none';
        document.getElementById('portlet_navigation_right_disabled').style.display='none';

	document.getElementById(currentExpandedDiv+"_current_section").value = 2;
	goToSection(1);
	//if (!isLastSection()) {
        //    document.getElementById('portlet_navigation_right').style.display='block';
        //    document.getElementById('portlet_navigation_left_disabled').style.display='block';
        //}
    }
};

function checkDraggable(id,uid){
    var draggableTable = document.getElementById(id + "_draggable_" + uid);
    if(draggableTable.style.cursor!='move'){
        draggableTable.style.cursor = 'move';
        doItDraggable(id + "_draggable_" + uid);
    }
}


var doPolymitaDraggableTimeout;

function doPolymitaDraggable(id){
    var dragItem = new Draggable(id, {
        ghosting:true,
        onDrag: function(){
            if( document.selection )
                document.selection.empty();
        },
        onStart: function(draggable, event){
            doPolymitaDraggableTimeout = setTimeout('showPortletDropZones();/*showRegionDropZones(); */clearTimeout(doPolymitaDraggableTimeout); doPolymitaDraggableTimeout = null;',1);
        },
        onEnd: function(draggable, event){
            if( doPolymitaDraggableTimeout ) {
                clearTimeout(doPolymitaDraggableTimeout);
            } else {
                window.disableMenuForPortlet = true;
            }
            hidePortletDropZones();hideRegionDropZones();
        },
        revert:true});
};

/////////////////////////////////////////////////////
function showPortletDropZones(){
    modifyPortletDropZones(true);
};

function hidePortletDropZones(){
    modifyPortletDropZones(false);
};

function showRegionDropZones(){
    modifyRegionDropZones(true);
};

function hideRegionDropZones(){
    modifyRegionDropZones(false);
};
/////////////////////////////////////////////////////
function modifyPortletDropZones(showThem) {
    modifyDropZone( "portletDropZoneContainer", showThem );
};
function modifyRegionDropZones(showThem) {
    modifyDropZone( "regionDropZoneContainer", showThem );
};
/////////////////////////////////////////////////////
function modifyDropZone(modifiablePrefix, showThem ){
    var alldivs = document.getElementsByTagName("div");
    for (i = 0; i < alldivs.length; i++) {
        var divElement = alldivs[i];
        if ( divElement.id && (divElement.id.indexOf(modifiablePrefix) == 0) ){
            //Change status for given div.
            if (showThem) {
                divElement.style.display = "block";
            }
            else {
                divElement.style.display = "none";
            }
            if (showThem && IE) { //Fix heights
                if(divElement.style.pixelHeight >0){
                    divElement.style.height = divElement.style.pixelHeight+"px";
                    var internalDivs = divElement.getElementsByTagName("div");
                    for (var j=0; j<internalDivs.length; j++){
                        internalDivs[j].style.height = divElement.style.pixelHeight+"px";
                    }
                }
            }
        }
    }
};

/**
 * This library offers key capturing services.
 */
shortcut = {
	'all_shortcuts':{},//All the shortcuts are stored in this array
	'add': function(shortcut_combination,callback,opt) {
		//Provide a set of default options
		var default_options = {
			'type':'keydown',
			'propagate':false,
			'disable_in_input':false,
			'target':document,
			'keycode':false
		}
		if(!opt) opt = default_options;
		else {
			for(var dfo in default_options) {
				if(typeof opt[dfo] == 'undefined') opt[dfo] = default_options[dfo];
			}
		}

		var ele = opt.target
		if(typeof opt.target == 'string') ele = document.getElementById(opt.target);
		var ths = this;
		shortcut_combination = shortcut_combination.toLowerCase();

		//The function to be called at keypress
		var func = function(e) {
			e = e || window.event;
			
			if(opt['disable_in_input']) { //Don't enable shortcut keys in Input, Textarea fields
				var element;
				if(e.target) element=e.target;
				else if(e.srcElement) element=e.srcElement;
				if(element.nodeType==3) element=element.parentNode;

				if(element.tagName == 'INPUT' || element.tagName == 'TEXTAREA') return;
			}
	
			//Find Which key is pressed
			if (e.keyCode) code = e.keyCode;
			else if (e.which) code = e.which;
			var character = String.fromCharCode(code).toLowerCase();
			
			if(code == 188) character=","; //If the user presses , when the type is onkeydown
			if(code == 190) character="."; //If the user presses , when the type is onkeydown
	
			var keys = shortcut_combination.split("+");
			//Key Pressed - counts the number of valid keypresses - if it is same as the number of keys, the shortcut function is invoked
			var kp = 0;
			
			//Work around for stupid Shift key bug created by using lowercase - as a result the shift+num combination was broken
			var shift_nums = {
				"`":"~",
				"1":"!",
				"2":"@",
				"3":"#",
				"4":"$",
				"5":"%",
				"6":"^",
				"7":"&",
				"8":"*",
				"9":"(",
				"0":")",
				"-":"_",
				"=":"+",
				";":":",
				"'":"\"",
				",":"<",
				".":">",
				"/":"?",
				"\\":"|"
			}
			//Special Keys - and their codes
			var special_keys = {
				'esc':27,
				'escape':27,
				'tab':9,
				'space':32,
				'return':13,
				'enter':13,
				'backspace':8,
	
				'scrolllock':145,
				'scroll_lock':145,
				'scroll':145,
				'capslock':20,
				'caps_lock':20,
				'caps':20,
				'numlock':144,
				'num_lock':144,
				'num':144,
				
				'pause':19,
				'break':19,
				
				'insert':45,
				'home':36,
				'delete':46,
				'end':35,
				
				'pageup':33,
				'page_up':33,
				'pu':33,
	
				'pagedown':34,
				'page_down':34,
				'pd':34,
	
				'left':37,
				'up':38,
				'right':39,
				'down':40,
	
				'f1':112,
				'f2':113,
				'f3':114,
				'f4':115,
				'f5':116,
				'f6':117,
				'f7':118,
				'f8':119,
				'f9':120,
				'f10':121,
				'f11':122,
				'f12':123
			}
	
			var modifiers = { 
				shift: { wanted:false, pressed:false},
				ctrl : { wanted:false, pressed:false},
				alt  : { wanted:false, pressed:false},
				meta : { wanted:false, pressed:false}	//Meta is Mac specific
			};
                        
			if(e.ctrlKey)	modifiers.ctrl.pressed = true;
			if(e.shiftKey)	modifiers.shift.pressed = true;
			if(e.altKey)	modifiers.alt.pressed = true;
			if(e.metaKey)   modifiers.meta.pressed = true;
                        
			for(var i=0; k=keys[i],i<keys.length; i++) {
				//Modifiers
				if(k == 'ctrl' || k == 'control') {
					kp++;
					modifiers.ctrl.wanted = true;

				} else if(k == 'shift') {
					kp++;
					modifiers.shift.wanted = true;

				} else if(k == 'alt') {
					kp++;
					modifiers.alt.wanted = true;
				} else if(k == 'meta') {
					kp++;
					modifiers.meta.wanted = true;
				} else if(k.length > 1) { //If it is a special key
					if(special_keys[k] == code) kp++;
					
				} else if(opt['keycode']) {
					if(opt['keycode'] == code) kp++;

				} else { //The special keys did not match
					if(character == k) kp++;
					else {
						if(shift_nums[character] && e.shiftKey) { //Stupid Shift key bug created by using lowercase
							character = shift_nums[character]; 
							if(character == k) kp++;
						}
					}
				}
			}

			if(kp == keys.length && 
						modifiers.ctrl.pressed == modifiers.ctrl.wanted &&
						modifiers.shift.pressed == modifiers.shift.wanted &&
						modifiers.alt.pressed == modifiers.alt.wanted &&
						modifiers.meta.pressed == modifiers.meta.wanted) {
				callback(e);
	
				if(!opt['propagate']) { //Stop the event
					//e.cancelBubble is supported by IE - this will kill the bubbling process.
					e.cancelBubble = true;
					e.returnValue = false;
	
					//e.stopPropagation works in Firefox.
					if (e.stopPropagation) {
						e.stopPropagation();
						e.preventDefault();
					}
					return false;
				}
			}
		}
		this.all_shortcuts[shortcut_combination] = {
			'callback':func, 
			'target':ele, 
			'event': opt['type']
		};
		//Attach the function with the event
		if(ele.addEventListener) ele.addEventListener(opt['type'], func, false);
		else if(ele.attachEvent) ele.attachEvent('on'+opt['type'], func);
		else ele['on'+opt['type']] = func;
	},

	//Remove the shortcut - just specify the shortcut and I will remove the binding
	'remove':function(shortcut_combination) {
		shortcut_combination = shortcut_combination.toLowerCase();
		var binding = this.all_shortcuts[shortcut_combination];
		delete(this.all_shortcuts[shortcut_combination])
		if(!binding) return;
		var type = binding['event'];
		var ele = binding['target'];
		var callback = binding['callback'];

		if(ele.detachEvent) ele.detachEvent('on'+type, callback);
		else if(ele.removeEventListener) ele.removeEventListener(type, callback, false);
		else ele['on'+type] = false;
	}
}
/*  Prototype JavaScript framework, version 1.5.0
 *  (c) 2005-2007 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://prototype.conio.net/
 *
/*--------------------------------------------------------------------------*/

var Prototype = {
  Version: '1.5.0',
  BrowserFeatures: {
    XPath: !!document.evaluate
  },

  ScriptFragment: '(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)',
  emptyFunction: function() {},
  K: function(x) { return x }
}

var Class = {
  create: function() {
    return function() {
      this.initialize.apply(this, arguments);
    }
  }
}

var Abstract = new Object();

Object.extend = function(destination, source) {
  for (var property in source) {
    destination[property] = source[property];
  }
  return destination;
}

Object.extend(Object, {
  inspect: function(object) {
    try {
      if (object === undefined) return 'undefined';
      if (object === null) return 'null';
      return object.inspect ? object.inspect() : object.toString();
    } catch (e) {
      if (e instanceof RangeError) return '...';
      throw e;
    }
  },

  keys: function(object) {
    var keys = [];
    for (var property in object)
      keys.push(property);
    return keys;
  },

  values: function(object) {
    var values = [];
    for (var property in object)
      values.push(object[property]);
    return values;
  },

  clone: function(object) {
    return Object.extend({}, object);
  }
});

Function.prototype.bind = function() {
  var __method = this, args = $A(arguments), object = args.shift();
  return function() {
    return __method.apply(object, args.concat($A(arguments)));
  }
}

Function.prototype.bindAsEventListener = function(object) {
  var __method = this, args = $A(arguments), object = args.shift();
  return function(event) {
    return __method.apply(object, [( event || window.event)].concat(args).concat($A(arguments)));
  }
}

Object.extend(Number.prototype, {
  toColorPart: function() {
    var digits = this.toString(16);
    if (this < 16) return '0' + digits;
    return digits;
  },

  succ: function() {
    return this + 1;
  },

  times: function(iterator) {
    $R(0, this, true).each(iterator);
    return this;
  }
});

var Try = {
  these: function() {
    var returnValue;

    for (var i = 0, length = arguments.length; i < length; i++) {
      var lambda = arguments[i];
      try {
        returnValue = lambda();
        break;
      } catch (e) {}
    }

    return returnValue;
  }
}

/*--------------------------------------------------------------------------*/

var PeriodicalExecuter = Class.create();
PeriodicalExecuter.prototype = {
  initialize: function(callback, frequency) {
    this.callback = callback;
    this.frequency = frequency;
    this.currentlyExecuting = false;

    this.registerCallback();
  },

  registerCallback: function() {
    this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
  },

  stop: function() {
    if (!this.timer) return;
    clearInterval(this.timer);
    this.timer = null;
  },

  onTimerEvent: function() {
    if (!this.currentlyExecuting) {
      try {
        this.currentlyExecuting = true;
        this.callback(this);
      } finally {
        this.currentlyExecuting = false;
      }
    }
  }
}
String.interpret = function(value){
  return value == null ? '' : String(value);
}

Object.extend(String.prototype, {
  gsub: function(pattern, replacement) {
    var result = '', source = this, match;
    replacement = arguments.callee.prepareReplacement(replacement);

    while (source.length > 0) {
      if (match = source.match(pattern)) {
        result += source.slice(0, match.index);
        result += String.interpret(replacement(match));
        source  = source.slice(match.index + match[0].length);
      } else {
        result += source, source = '';
      }
    }
    return result;
  },

  sub: function(pattern, replacement, count) {
    replacement = this.gsub.prepareReplacement(replacement);
    count = count === undefined ? 1 : count;

    return this.gsub(pattern, function(match) {
      if (--count < 0) return match[0];
      return replacement(match);
    });
  },

  scan: function(pattern, iterator) {
    this.gsub(pattern, iterator);
    return this;
  },

  truncate: function(length, truncation) {
    length = length || 30;
    truncation = truncation === undefined ? '...' : truncation;
    return this.length > length ?
      this.slice(0, length - truncation.length) + truncation : this;
  },

  strip: function() {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
  },

  stripTags: function() {
    return this.replace(/<\/?[^>]+>/gi, '');
  },

  stripScripts: function() {
    return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
  },

  extractScripts: function() {
    var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
    var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
    return (this.match(matchAll) || []).map(function(scriptTag) {
      return (scriptTag.match(matchOne) || ['', ''])[1];
    });
  },

  evalScripts: function() {
    return this.extractScripts().map(function(script) { return eval(script) });
  },

  escapeHTML: function() {
    var div = document.createElement('div');
    var text = document.createTextNode(this);
    div.appendChild(text);
    return div.innerHTML;
  },

  unescapeHTML: function() {
    var div = document.createElement('div');
    div.innerHTML = this.stripTags();
    return div.childNodes[0] ? (div.childNodes.length > 1 ?
      $A(div.childNodes).inject('',function(memo,node){ return memo+node.nodeValue }) :
      div.childNodes[0].nodeValue) : '';
  },

  toQueryParams: function(separator) {
    var match = this.strip().match(/([^?#]*)(#.*)?$/);
    if (!match) return {};

    return match[1].split(separator || '&').inject({}, function(hash, pair) {
      if ((pair = pair.split('='))[0]) {
        var name = decodeURIComponent(pair[0]);
        var value = pair[1] ? decodeURIComponent(pair[1]) : undefined;

        if (hash[name] !== undefined) {
          if (hash[name].constructor != Array)
            hash[name] = [hash[name]];
          if (value) hash[name].push(value);
        }
        else hash[name] = value;
      }
      return hash;
    });
  },

  toArray: function() {
    return this.split('');
  },

  succ: function() {
    return this.slice(0, this.length - 1) +
      String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
  },

  camelize: function() {
    var parts = this.split('-'), len = parts.length;
    if (len == 1) return parts[0];

    var camelized = this.charAt(0) == '-'
      ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
      : parts[0];

    for (var i = 1; i < len; i++)
      camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);

    return camelized;
  },

  capitalize: function(){
    return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
  },

  underscore: function() {
    return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
  },

  dasherize: function() {
    return this.gsub(/_/,'-');
  },

  inspect: function(useDoubleQuotes) {
    var escapedString = this.replace(/\\/g, '\\\\');
    if (useDoubleQuotes)
      return '"' + escapedString.replace(/"/g, '\\"') + '"';
    else
      return "'" + escapedString.replace(/'/g, '\\\'') + "'";
  }
});

String.prototype.gsub.prepareReplacement = function(replacement) {
  if (typeof replacement == 'function') return replacement;
  var template = new Template(replacement);
  return function(match) { return template.evaluate(match) };
}

String.prototype.parseQuery = String.prototype.toQueryParams;

var Template = Class.create();
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
Template.prototype = {
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern  = pattern || Template.Pattern;
  },

  evaluate: function(object) {
    return this.template.gsub(this.pattern, function(match) {
      var before = match[1];
      if (before == '\\') return match[2];
      return before + String.interpret(object[match[3]]);
    });
  }
}

var $break    = new Object();
var $continue = new Object();

var Enumerable = {
  each: function(iterator) {
    var index = 0;
    try {
      this._each(function(value) {
        try {
          iterator(value, index++);
        } catch (e) {
          if (e != $continue) throw e;
        }
      });
    } catch (e) {
      if (e != $break) throw e;
    }
    return this;
  },

  eachSlice: function(number, iterator) {
    var index = -number, slices = [], array = this.toArray();
    while ((index += number) < array.length)
      slices.push(array.slice(index, index+number));
    return slices.map(iterator);
  },

  all: function(iterator) {
    var result = true;
    this.each(function(value, index) {
      result = result && !!(iterator || Prototype.K)(value, index);
      if (!result) throw $break;
    });
    return result;
  },

  any: function(iterator) {
    var result = false;
    this.each(function(value, index) {
      if (result = !!(iterator || Prototype.K)(value, index))
        throw $break;
    });
    return result;
  },

  collect: function(iterator) {
    var results = [];
    this.each(function(value, index) {
      results.push((iterator || Prototype.K)(value, index));
    });
    return results;
  },

  detect: function(iterator) {
    var result;
    this.each(function(value, index) {
      if (iterator(value, index)) {
        result = value;
        throw $break;
      }
    });
    return result;
  },

  findAll: function(iterator) {
    var results = [];
    this.each(function(value, index) {
      if (iterator(value, index))
        results.push(value);
    });
    return results;
  },

  grep: function(pattern, iterator) {
    var results = [];
    this.each(function(value, index) {
      var stringValue = value.toString();
      if (stringValue.match(pattern))
        results.push((iterator || Prototype.K)(value, index));
    })
    return results;
  },

  include: function(object) {
    var found = false;
    this.each(function(value) {
      if (value == object) {
        found = true;
        throw $break;
      }
    });
    return found;
  },

  inGroupsOf: function(number, fillWith) {
    fillWith = fillWith === undefined ? null : fillWith;
    return this.eachSlice(number, function(slice) {
      while(slice.length < number) slice.push(fillWith);
      return slice;
    });
  },

  inject: function(memo, iterator) {
    this.each(function(value, index) {
      memo = iterator(memo, value, index);
    });
    return memo;
  },

  invoke: function(method) {
    var args = $A(arguments).slice(1);
    return this.map(function(value) {
      return value[method].apply(value, args);
    });
  },

  max: function(iterator) {
    var result;
    this.each(function(value, index) {
      value = (iterator || Prototype.K)(value, index);
      if (result == undefined || value >= result)
        result = value;
    });
    return result;
  },

  min: function(iterator) {
    var result;
    this.each(function(value, index) {
      value = (iterator || Prototype.K)(value, index);
      if (result == undefined || value < result)
        result = value;
    });
    return result;
  },

  partition: function(iterator) {
    var trues = [], falses = [];
    this.each(function(value, index) {
      ((iterator || Prototype.K)(value, index) ?
        trues : falses).push(value);
    });
    return [trues, falses];
  },

  pluck: function(property) {
    var results = [];
    this.each(function(value, index) {
      results.push(value[property]);
    });
    return results;
  },

  reject: function(iterator) {
    var results = [];
    this.each(function(value, index) {
      if (!iterator(value, index))
        results.push(value);
    });
    return results;
  },

  sortBy: function(iterator) {
    return this.map(function(value, index) {
      return {value: value, criteria: iterator(value, index)};
    }).sort(function(left, right) {
      var a = left.criteria, b = right.criteria;
      return a < b ? -1 : a > b ? 1 : 0;
    }).pluck('value');
  },

  toArray: function() {
    return this.map();
  },

  zip: function() {
    var iterator = Prototype.K, args = $A(arguments);
    if (typeof args.last() == 'function')
      iterator = args.pop();

    var collections = [this].concat(args).map($A);
    return this.map(function(value, index) {
      return iterator(collections.pluck(index));
    });
  },

  size: function() {
    return this.toArray().length;
  },

  inspect: function() {
    return '#<Enumerable:' + this.toArray().inspect() + '>';
  }
}

Object.extend(Enumerable, {
  map:     Enumerable.collect,
  find:    Enumerable.detect,
  select:  Enumerable.findAll,
  member:  Enumerable.include,
  entries: Enumerable.toArray
});
var $A = Array.from = function(iterable) {
  if (!iterable) return [];
  if (iterable.toArray) {
    return iterable.toArray();
  } else {
    var results = [];
    for (var i = 0, length = iterable.length; i < length; i++)
      results.push(iterable[i]);
    return results;
  }
}

Object.extend(Array.prototype, Enumerable);

if (!Array.prototype._reverse)
  Array.prototype._reverse = Array.prototype.reverse;

Object.extend(Array.prototype, {
  _each: function(iterator) {
    for (var i = 0, length = this.length; i < length; i++)
      iterator(this[i]);
  },

  clear: function() {
    this.length = 0;
    return this;
  },

  first: function() {
    return this[0];
  },

  last: function() {
    return this[this.length - 1];
  },

  compact: function() {
    return this.select(function(value) {
      return value != null;
    });
  },

  flatten: function() {
    return this.inject([], function(array, value) {
      return array.concat(value && value.constructor == Array ?
        value.flatten() : [value]);
    });
  },

  without: function() {
    var values = $A(arguments);
    return this.select(function(value) {
      return !values.include(value);
    });
  },

  indexOf: function(object) {
    for (var i = 0, length = this.length; i < length; i++)
      if (this[i] == object) return i;
    return -1;
  },

  reverse: function(inline) {
    return (inline !== false ? this : this.toArray())._reverse();
  },

  reduce: function() {
    return this.length > 1 ? this : this[0];
  },

  uniq: function() {
    return this.inject([], function(array, value) {
      return array.include(value) ? array : array.concat([value]);
    });
  },

  clone: function() {
    return [].concat(this);
  },

  size: function() {
    return this.length;
  },

  inspect: function() {
    return '[' + this.map(Object.inspect).join(', ') + ']';
  }
});

Array.prototype.toArray = Array.prototype.clone;

function $w(string){
  string = string.strip();
  return string ? string.split(/\s+/) : [];
}

if(window.opera){
  Array.prototype.concat = function(){
    var array = [];
    for(var i = 0, length = this.length; i < length; i++) array.push(this[i]);
    for(var i = 0, length = arguments.length; i < length; i++) {
      if(arguments[i].constructor == Array) {
        for(var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
          array.push(arguments[i][j]);
      } else {
        array.push(arguments[i]);
      }
    }
    return array;
  }
}
var Hash = function(obj) {
  Object.extend(this, obj || {});
};

Object.extend(Hash, {
  toQueryString: function(obj) {
    var parts = [];

	  this.prototype._each.call(obj, function(pair) {
      if (!pair.key) return;

      if (pair.value && pair.value.constructor == Array) {
        var values = pair.value.compact();
        if (values.length < 2) pair.value = values.reduce();
        else {
        	key = encodeURIComponent(pair.key);
          values.each(function(value) {
            value = value != undefined ? encodeURIComponent(value) : '';
            parts.push(key + '=' + encodeURIComponent(value));
          });
          return;
        }
      }
      if (pair.value == undefined) pair[1] = '';
      parts.push(pair.map(encodeURIComponent).join('='));
	  });

    return parts.join('&');
  }
});

Object.extend(Hash.prototype, Enumerable);
Object.extend(Hash.prototype, {
  _each: function(iterator) {
    for (var key in this) {
      var value = this[key];
      if (value && value == Hash.prototype[key]) continue;

      var pair = [key, value];
      pair.key = key;
      pair.value = value;
      iterator(pair);
    }
  },

  keys: function() {
    return this.pluck('key');
  },

  values: function() {
    return this.pluck('value');
  },

  merge: function(hash) {
    return $H(hash).inject(this, function(mergedHash, pair) {
      mergedHash[pair.key] = pair.value;
      return mergedHash;
    });
  },

  remove: function() {
    var result;
    for(var i = 0, length = arguments.length; i < length; i++) {
      var value = this[arguments[i]];
      if (value !== undefined){
        if (result === undefined) result = value;
        else {
          if (result.constructor != Array) result = [result];
          result.push(value)
        }
      }
      delete this[arguments[i]];
    }
    return result;
  },

  toQueryString: function() {
    return Hash.toQueryString(this);
  },

  inspect: function() {
    return '#<Hash:{' + this.map(function(pair) {
      return pair.map(Object.inspect).join(': ');
    }).join(', ') + '}>';
  }
});

function $H(object) {
  if (object && object.constructor == Hash) return object;
  return new Hash(object);
};
ObjectRange = Class.create();
Object.extend(ObjectRange.prototype, Enumerable);
Object.extend(ObjectRange.prototype, {
  initialize: function(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  },

  _each: function(iterator) {
    var value = this.start;
    while (this.include(value)) {
      iterator(value);
      value = value.succ();
    }
  },

  include: function(value) {
    if (value < this.start)
      return false;
    if (this.exclusive)
      return value < this.end;
    return value <= this.end;
  }
});

var $R = function(start, end, exclusive) {
  return new ObjectRange(start, end, exclusive);
}

var Ajax = {
  getTransport: function() {
    return Try.these(
      function() {return new XMLHttpRequest()},
      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
      function() {return new ActiveXObject('Microsoft.XMLHTTP')}
    ) || false;
  },

  activeRequestCount: 0
}

Ajax.Responders = {
  responders: [],

  _each: function(iterator) {
    this.responders._each(iterator);
  },

  register: function(responder) {
    if (!this.include(responder))
      this.responders.push(responder);
  },

  unregister: function(responder) {
    this.responders = this.responders.without(responder);
  },

  dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (typeof responder[callback] == 'function') {
        try {
          responder[callback].apply(responder, [request, transport, json]);
        } catch (e) {}
      }
    });
  }
};

Object.extend(Ajax.Responders, Enumerable);

Ajax.Responders.register({
  onCreate: function() {
    Ajax.activeRequestCount++;
  },
  onComplete: function() {
    Ajax.activeRequestCount--;
  }
});

Ajax.Base = function() {};
Ajax.Base.prototype = {
  setOptions: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      encoding:     'UTF-8',
      parameters:   ''
    }
    Object.extend(this.options, options || {});

    this.options.method = this.options.method.toLowerCase();
    if (typeof this.options.parameters == 'string')
      this.options.parameters = this.options.parameters.toQueryParams();
  }
}

Ajax.Request = Class.create();
Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];

Ajax.Request.prototype = Object.extend(new Ajax.Base(), {
  _complete: false,

  initialize: function(url, options) {
    this.transport = Ajax.getTransport();
    this.setOptions(options);
    this.request(url);
  },

  request: function(url) {
    this.url = url;
    this.method = this.options.method;
    var params = this.options.parameters;

    if (!['get', 'post'].include(this.method)) {
      // simulate other verbs over post
      params['_method'] = this.method;
      this.method = 'post';
    }

    params = Hash.toQueryString(params);
    if (params && /Konqueror|Safari|KHTML/.test(navigator.userAgent)) params += '&_='

    // when GET, append parameters to URL
    if (this.method == 'get' && params)
      this.url += (this.url.indexOf('?') > -1 ? '&' : '?') + params;

    try {
      Ajax.Responders.dispatch('onCreate', this, this.transport);

      this.transport.open(this.method.toUpperCase(), this.url,
        this.options.asynchronous);

      if (this.options.asynchronous)
        setTimeout(function() { this.respondToReadyState(1) }.bind(this), 10);

      this.transport.onreadystatechange = this.onStateChange.bind(this);
      this.setRequestHeaders();

      var body = this.method == 'post' ? (this.options.postBody || params) : null;

      this.transport.send(body);

      /* Force Firefox to handle ready state 4 for synchronous requests */
      if (!this.options.asynchronous && this.transport.overrideMimeType)
        this.onStateChange();

    }
    catch (e) {
      this.dispatchException(e);
    }
  },

  onStateChange: function() {
    var readyState = this.transport.readyState;
    if (readyState > 1 && !((readyState == 4) && this._complete))
      this.respondToReadyState(this.transport.readyState);
  },

  setRequestHeaders: function() {
    var headers = {
      'X-Requested-With': 'XMLHttpRequest',
      'X-Prototype-Version': Prototype.Version,
      'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
    };

    if (this.method == 'post') {
      headers['Content-type'] = this.options.contentType +
        (this.options.encoding ? '; charset=' + this.options.encoding : '');

      /* Force "Connection: close" for older Mozilla browsers to work
       * around a bug where XMLHttpRequest sends an incorrect
       * Content-length header. See Mozilla Bugzilla #246651.
       */
      if (this.transport.overrideMimeType &&
          (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
            headers['Connection'] = 'close';
    }

    // user-defined headers
    if (typeof this.options.requestHeaders == 'object') {
      var extras = this.options.requestHeaders;

      if (typeof extras.push == 'function')
        for (var i = 0, length = extras.length; i < length; i += 2)
          headers[extras[i]] = extras[i+1];
      else
        $H(extras).each(function(pair) { headers[pair.key] = pair.value });
    }

    for (var name in headers)
      this.transport.setRequestHeader(name, headers[name]);
  },

  success: function() {
    return !this.transport.status
        || (this.transport.status >= 200 && this.transport.status < 300);
  },

  respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState];
    var transport = this.transport, json = this.evalJSON();

    if (state == 'Complete') {
      try {
        this._complete = true;
        (this.options['on' + this.transport.status]
         || this.options['on' + (this.success() ? 'Success' : 'Failure')]
         || Prototype.emptyFunction)(transport, json);
      } catch (e) {
        this.dispatchException(e);
      }

      if ((this.getHeader('Content-type') || 'text/javascript').strip().
        match(/^(text|application)\/(x-)?(java|ecma)script(;.*)?$/i))
          this.evalResponse();
    }

    try {
      (this.options['on' + state] || Prototype.emptyFunction)(transport, json);
      Ajax.Responders.dispatch('on' + state, this, transport, json);
    } catch (e) {
      this.dispatchException(e);
    }

    if (state == 'Complete') {
      // avoid memory leak in MSIE: clean up
      this.transport.onreadystatechange = Prototype.emptyFunction;
    }
  },

  getHeader: function(name) {
    try {
      return this.transport.getResponseHeader(name);
    } catch (e) { return null }
  },

  evalJSON: function() {
    try {
      var json = this.getHeader('X-JSON');
      return json ? eval('(' + json + ')') : null;
    } catch (e) { return null }
  },

  evalResponse: function() {
    try {
      return eval(this.transport.responseText);
    } catch (e) {
      this.dispatchException(e);
    }
  },

  dispatchException: function(exception) {
    (this.options.onException || Prototype.emptyFunction)(this, exception);
    Ajax.Responders.dispatch('onException', this, exception);
  }
});

Ajax.Updater = Class.create();

Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {
  initialize: function(container, url, options) {
    this.container = {
      success: (container.success || container),
      failure: (container.failure || (container.success ? null : container))
    }

    this.transport = Ajax.getTransport();
    this.setOptions(options);

    var onComplete = this.options.onComplete || Prototype.emptyFunction;
    this.options.onComplete = (function(transport, param) {
      this.updateContent();
      onComplete(transport, param);
    }).bind(this);

    this.request(url);
  },

  updateContent: function() {
    var receiver = this.container[this.success() ? 'success' : 'failure'];
    var response = this.transport.responseText;

    if (!this.options.evalScripts) response = response.stripScripts();

    if (receiver = $(receiver)) {
      if (this.options.insertion)
        new this.options.insertion(receiver, response);
      else
        receiver.update(response);
    }

    if (this.success()) {
      if (this.onComplete)
        setTimeout(this.onComplete.bind(this), 10);
    }
  }
});

Ajax.PeriodicalUpdater = Class.create();
Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {
  initialize: function(container, url, options) {
    this.setOptions(options);
    this.onComplete = this.options.onComplete;

    this.frequency = (this.options.frequency || 2);
    this.decay = (this.options.decay || 1);

    this.updater = {};
    this.container = container;
    this.url = url;

    this.start();
  },

  start: function() {
    this.options.onComplete = this.updateComplete.bind(this);
    this.onTimerEvent();
  },

  stop: function() {
    this.updater.options.onComplete = undefined;
    clearTimeout(this.timer);
    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
  },

  updateComplete: function(request) {
    if (this.options.decay) {
      this.decay = (request.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

      this.lastText = request.responseText;
    }
    this.timer = setTimeout(this.onTimerEvent.bind(this),
      this.decay * this.frequency * 1000);
  },

  onTimerEvent: function() {
    this.updater = new Ajax.Updater(this.container, this.url, this.options);
  }
});
function $(element) {
  if (arguments.length > 1) {
    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
      elements.push($(arguments[i]));
    return elements;
  }
  if (typeof element == 'string')
    element = document.getElementById(element);
  return Element.extend(element);
}

if (Prototype.BrowserFeatures.XPath) {
  document._getElementsByXPath = function(expression, parentElement) {
    var results = [];
    var query = document.evaluate(expression, $(parentElement) || document,
      null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0, length = query.snapshotLength; i < length; i++)
      results.push(query.snapshotItem(i));
    return results;
  };
}

document.getElementsByClassName = function(className, parentElement) {
  if (Prototype.BrowserFeatures.XPath) {
    var q = ".//*[contains(concat(' ', @class, ' '), ' " + className + " ')]";
    return document._getElementsByXPath(q, parentElement);
  } else {
    var children = ($(parentElement) || document.body).getElementsByTagName('*');
    var elements = [], child;
    for (var i = 0, length = children.length; i < length; i++) {
      child = children[i];
      if (Element.hasClassName(child, className))
        elements.push(Element.extend(child));
    }
    return elements;
  }
};

/*--------------------------------------------------------------------------*/

if (!window.Element)
  var Element = new Object();

Element.extend = function(element) {
  if (!element || _nativeExtensions || element.nodeType == 3) return element;

  if (!element._extended && element.tagName && element != window) {
    var methods = Object.clone(Element.Methods), cache = Element.extend.cache;

    if (element.tagName == 'FORM')
      Object.extend(methods, Form.Methods);
    if (['INPUT', 'TEXTAREA', 'SELECT'].include(element.tagName))
      Object.extend(methods, Form.Element.Methods);

    Object.extend(methods, Element.Methods.Simulated);

    for (var property in methods) {
      var value = methods[property];
      if (typeof value == 'function' && !(property in element))
        element[property] = cache.findOrStore(value);
    }
  }

  element._extended = true;
  return element;
};

Element.extend.cache = {
  findOrStore: function(value) {
    return this[value] = this[value] || function() {
      return value.apply(null, [this].concat($A(arguments)));
    }
  }
};

Element.Methods = {
  visible: function(element) {
    return $(element).style.display != 'none';
  },

  toggle: function(element) {
    element = $(element);
    Element[Element.visible(element) ? 'hide' : 'show'](element);
    return element;
  },

  hide: function(element) {
    $(element).style.display = 'none';
    return element;
  },

  show: function(element) {
    $(element).style.display = '';
    return element;
  },

  remove: function(element) {
    element = $(element);
    element.parentNode.removeChild(element);
    return element;
  },

  update: function(element, html) {
    html = typeof html == 'undefined' ? '' : html.toString();
    $(element).innerHTML = html.stripScripts();
    setTimeout(function() {html.evalScripts()}, 10);
    return element;
  },

  replace: function(element, html) {
    element = $(element);
    html = typeof html == 'undefined' ? '' : html.toString();
    if (element.outerHTML) {
      element.outerHTML = html.stripScripts();
    } else {
      var range = element.ownerDocument.createRange();
      range.selectNodeContents(element);
      element.parentNode.replaceChild(
        range.createContextualFragment(html.stripScripts()), element);
    }
    setTimeout(function() {html.evalScripts()}, 10);
    return element;
  },

  inspect: function(element) {
    element = $(element);
    var result = '<' + element.tagName.toLowerCase();
    $H({'id': 'id', 'className': 'class'}).each(function(pair) {
      var property = pair.first(), attribute = pair.last();
      var value = (element[property] || '').toString();
      if (value) result += ' ' + attribute + '=' + value.inspect(true);
    });
    return result + '>';
  },

  recursivelyCollect: function(element, property) {
    element = $(element);
    var elements = [];
    while (element = element[property])
      if (element.nodeType == 1)
        elements.push(Element.extend(element));
    return elements;
  },

  ancestors: function(element) {
    return $(element).recursivelyCollect('parentNode');
  },

  descendants: function(element) {
    return $A($(element).getElementsByTagName('*'));
  },

  immediateDescendants: function(element) {
    if (!(element = $(element).firstChild)) return [];
    while (element && element.nodeType != 1) element = element.nextSibling;
    if (element) return [element].concat($(element).nextSiblings());
    return [];
  },

  previousSiblings: function(element) {
    return $(element).recursivelyCollect('previousSibling');
  },

  nextSiblings: function(element) {
    return $(element).recursivelyCollect('nextSibling');
  },

  siblings: function(element) {
    element = $(element);
    return element.previousSiblings().reverse().concat(element.nextSiblings());
  },

  match: function(element, selector) {
    if (typeof selector == 'string')
      selector = new Selector(selector);
    return selector.match($(element));
  },

  up: function(element, expression, index) {
    return Selector.findElement($(element).ancestors(), expression, index);
  },

  down: function(element, expression, index) {
    return Selector.findElement($(element).descendants(), expression, index);
  },

  previous: function(element, expression, index) {
    return Selector.findElement($(element).previousSiblings(), expression, index);
  },

  next: function(element, expression, index) {
    return Selector.findElement($(element).nextSiblings(), expression, index);
  },

  getElementsBySelector: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element, args);
  },

  getElementsByClassName: function(element, className) {
    return document.getElementsByClassName(className, element);
  },

  readAttribute: function(element, name) {
    element = $(element);
    if (document.all && !window.opera) {
      var t = Element._attributeTranslations;
      if (t.values[name]) return t.values[name](element, name);
      if (t.names[name])  name = t.names[name];
      var attribute = element.attributes[name];
      if(attribute) return attribute.nodeValue;
    }
    return element.getAttribute(name);
  },

  getHeight: function(element) {
    return $(element).getDimensions().height;
  },

  getWidth: function(element) {
    return $(element).getDimensions().width;
  },

  classNames: function(element) {
    return new Element.ClassNames(element);
  },

  hasClassName: function(element, className) {
    if (!(element = $(element))) return;
    var elementClassName = element.className;
    if (elementClassName.length == 0) return false;
    if (elementClassName == className ||
        elementClassName.match(new RegExp("(^|\\s)" + className + "(\\s|$)")))
      return true;
    return false;
  },

  addClassName: function(element, className) {
    if (!(element = $(element))) return;
    Element.classNames(element).add(className);
    return element;
  },

  removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    Element.classNames(element).remove(className);
    return element;
  },

  toggleClassName: function(element, className) {
    if (!(element = $(element))) return;
    Element.classNames(element)[element.hasClassName(className) ? 'remove' : 'add'](className);
    return element;
  },

  observe: function() {
    Event.observe.apply(Event, arguments);
    return $A(arguments).first();
  },

  stopObserving: function() {
    Event.stopObserving.apply(Event, arguments);
    return $A(arguments).first();
  },

  // removes whitespace-only text node children
  cleanWhitespace: function(element) {
    element = $(element);
    var node = element.firstChild;
    while (node) {
      var nextNode = node.nextSibling;
      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
        element.removeChild(node);
      node = nextNode;
    }
    return element;
  },

  empty: function(element) {
    return $(element).innerHTML.match(/^\s*$/);
  },

  descendantOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);
    while (element = element.parentNode)
      if (element == ancestor) return true;
    return false;
  },

  scrollTo: function(element) {
    element = $(element);
    var pos = Position.cumulativeOffset(element);
    window.scrollTo(pos[0], pos[1]);
    return element;
  },

  getStyle: function(element, style) {
    element = $(element);
    if (['float','cssFloat'].include(style))
      style = (typeof element.style.styleFloat != 'undefined' ? 'styleFloat' : 'cssFloat');
    style = style.camelize();
    var value = element.style[style];
    if (!value) {
      if (document.defaultView && document.defaultView.getComputedStyle) {
        var css = document.defaultView.getComputedStyle(element, null);
        value = css ? css[style] : null;
      } else if (element.currentStyle) {
        value = element.currentStyle[style];
      }
    }

    if((value == 'auto') && ['width','height'].include(style) && (element.getStyle('display') != 'none'))
      value = element['offset'+style.capitalize()] + 'px';

    if (window.opera && ['left', 'top', 'right', 'bottom'].include(style))
      if (Element.getStyle(element, 'position') == 'static') value = 'auto';
    if(style == 'opacity') {
      if(value) return parseFloat(value);
      if(value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
        if(value[1]) return parseFloat(value[1]) / 100;
      return 1.0;
    }
    return value == 'auto' ? null : value;
  },

  setStyle: function(element, style) {
    element = $(element);
    for (var name in style) {
      var value = style[name];
      if(name == 'opacity') {
        if (value == 1) {
          value = (/Gecko/.test(navigator.userAgent) &&
            !/Konqueror|Safari|KHTML/.test(navigator.userAgent)) ? 0.999999 : 1.0;
          if(/MSIE/.test(navigator.userAgent) && !window.opera)
            element.style.filter = element.getStyle('filter').replace(/alpha\([^\)]*\)/gi,'');
        } else if(value === '') {
          if(/MSIE/.test(navigator.userAgent) && !window.opera)
            element.style.filter = element.getStyle('filter').replace(/alpha\([^\)]*\)/gi,'');
        } else {
          if(value < 0.00001) value = 0;
          if(/MSIE/.test(navigator.userAgent) && !window.opera)
            element.style.filter = element.getStyle('filter').replace(/alpha\([^\)]*\)/gi,'') +
              'alpha(opacity='+value*100+')';
        }
      } else if(['float','cssFloat'].include(name)) name = (typeof element.style.styleFloat != 'undefined') ? 'styleFloat' : 'cssFloat';
      element.style[name.camelize()] = value;
    }
    return element;
  },

  getDimensions: function(element) {
    element = $(element);
    var display = $(element).getStyle('display');
    if (display != 'none' && display != null) // Safari bug
      return {width: element.offsetWidth, height: element.offsetHeight};

    // All *Width and *Height properties give 0 on elements with display none,
    // so enable the element temporarily
    var els = element.style;
    var originalVisibility = els.visibility;
    var originalPosition = els.position;
    var originalDisplay = els.display;
    els.visibility = 'hidden';
    els.position = 'absolute';
    els.display = 'block';
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = originalDisplay;
    els.position = originalPosition;
    els.visibility = originalVisibility;
    return {width: originalWidth, height: originalHeight};
  },

  makePositioned: function(element) {
    element = $(element);
    var pos = Element.getStyle(element, 'position');
    if (pos == 'static' || !pos) {
      element._madePositioned = true;
      element.style.position = 'relative';
      // Opera returns the offset relative to the positioning context, when an
      // element is position relative but top and left have not been defined
      if (window.opera) {
        element.style.top = 0;
        element.style.left = 0;
      }
    }
    return element;
  },

  undoPositioned: function(element) {
    element = $(element);
    if (element._madePositioned) {
      element._madePositioned = undefined;
      element.style.position =
        element.style.top =
        element.style.left =
        element.style.bottom =
        element.style.right = '';
    }
    return element;
  },

  makeClipping: function(element) {
    element = $(element);
    if (element._overflow) return element;
    element._overflow = element.style.overflow || 'auto';
    if ((Element.getStyle(element, 'overflow') || 'visible') != 'hidden')
      element.style.overflow = 'hidden';
    return element;
  },

  undoClipping: function(element) {
    element = $(element);
    if (!element._overflow) return element;
    element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
    element._overflow = null;
    return element;
  }
};

Object.extend(Element.Methods, {childOf: Element.Methods.descendantOf});

Element._attributeTranslations = {};

Element._attributeTranslations.names = {
  colspan:   "colSpan",
  rowspan:   "rowSpan",
  valign:    "vAlign",
  datetime:  "dateTime",
  accesskey: "accessKey",
  tabindex:  "tabIndex",
  enctype:   "encType",
  maxlength: "maxLength",
  readonly:  "readOnly",
  longdesc:  "longDesc"
};

Element._attributeTranslations.values = {
  _getAttr: function(element, attribute) {
    return element.getAttribute(attribute, 2);
  },

  _flag: function(element, attribute) {
    return $(element).hasAttribute(attribute) ? attribute : null;
  },

  style: function(element) {
    return element.style.cssText.toLowerCase();
  },

  title: function(element) {
    var node = element.getAttributeNode('title');
    return node.specified ? node.nodeValue : null;
  }
};

Object.extend(Element._attributeTranslations.values, {
  href: Element._attributeTranslations.values._getAttr,
  src:  Element._attributeTranslations.values._getAttr,
  disabled: Element._attributeTranslations.values._flag,
  checked:  Element._attributeTranslations.values._flag,
  readonly: Element._attributeTranslations.values._flag,
  multiple: Element._attributeTranslations.values._flag
});

Element.Methods.Simulated = {
  hasAttribute: function(element, attribute) {
    var t = Element._attributeTranslations;
    attribute = t.names[attribute] || attribute;
    return $(element).getAttributeNode(attribute).specified;
  }
};

// IE is missing .innerHTML support for TABLE-related elements
if (document.all && !window.opera){
  Element.Methods.update = function(element, html) {
    element = $(element);
    html = typeof html == 'undefined' ? '' : html.toString();
    var tagName = element.tagName.toUpperCase();
    if (['THEAD','TBODY','TR','TD'].include(tagName)) {
      var div = document.createElement('div');
      switch (tagName) {
        case 'THEAD':
        case 'TBODY':
          div.innerHTML = '<table><tbody>' +  html.stripScripts() + '</tbody></table>';
          depth = 2;
          break;
        case 'TR':
          div.innerHTML = '<table><tbody><tr>' +  html.stripScripts() + '</tr></tbody></table>';
          depth = 3;
          break;
        case 'TD':
          div.innerHTML = '<table><tbody><tr><td>' +  html.stripScripts() + '</td></tr></tbody></table>';
          depth = 4;
      }
      $A(element.childNodes).each(function(node){
        element.removeChild(node)
      });
      depth.times(function(){ div = div.firstChild });

      $A(div.childNodes).each(
        function(node){ element.appendChild(node) });
    } else {
      element.innerHTML = html.stripScripts();
    }
    setTimeout(function() {html.evalScripts()}, 10);
    return element;
  }
};

Object.extend(Element, Element.Methods);

var _nativeExtensions = false;

if(/Konqueror|Safari|KHTML/.test(navigator.userAgent))
  ['', 'Form', 'Input', 'TextArea', 'Select'].each(function(tag) {
    var className = 'HTML' + tag + 'Element';
    if(window[className]) return;
    var klass = window[className] = {};
    klass.prototype = document.createElement(tag ? tag.toLowerCase() : 'div').__proto__;
  });

Element.addMethods = function(methods) {
  Object.extend(Element.Methods, methods || {});

  function copy(methods, destination, onlyIfAbsent) {
    onlyIfAbsent = onlyIfAbsent || false;
    var cache = Element.extend.cache;
    for (var property in methods) {
      var value = methods[property];
      if (!onlyIfAbsent || !(property in destination))
        destination[property] = cache.findOrStore(value);
    }
  }

  if (typeof HTMLElement != 'undefined') {
    copy(Element.Methods, HTMLElement.prototype);
    copy(Element.Methods.Simulated, HTMLElement.prototype, true);
    copy(Form.Methods, HTMLFormElement.prototype);
    [HTMLInputElement, HTMLTextAreaElement, HTMLSelectElement].each(function(klass) {
      copy(Form.Element.Methods, klass.prototype);
    });
    _nativeExtensions = true;
  }
}

var Toggle = new Object();
Toggle.display = Element.toggle;

/*--------------------------------------------------------------------------*/

Abstract.Insertion = function(adjacency) {
  this.adjacency = adjacency;
}

Abstract.Insertion.prototype = {
  initialize: function(element, content) {
    this.element = $(element);
    this.content = content.stripScripts();

    if (this.adjacency && this.element.insertAdjacentHTML) {
      try {
        this.element.insertAdjacentHTML(this.adjacency, this.content);
      } catch (e) {
        var tagName = this.element.tagName.toUpperCase();
        if (['TBODY', 'TR'].include(tagName)) {
          this.insertContent(this.contentFromAnonymousTable());
        } else {
          throw e;
        }
      }
    } else {
      this.range = this.element.ownerDocument.createRange();
      if (this.initializeRange) this.initializeRange();
      this.insertContent([this.range.createContextualFragment(this.content)]);
    }

    setTimeout(function() {content.evalScripts()}, 10);
  },

  contentFromAnonymousTable: function() {
    var div = document.createElement('div');
    div.innerHTML = '<table><tbody>' + this.content + '</tbody></table>';
    return $A(div.childNodes[0].childNodes[0].childNodes);
  }
}

var Insertion = new Object();

Insertion.Before = Class.create();
Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), {
  initializeRange: function() {
    this.range.setStartBefore(this.element);
  },

  insertContent: function(fragments) {
    fragments.each((function(fragment) {
      this.element.parentNode.insertBefore(fragment, this.element);
    }).bind(this));
  }
});

Insertion.Top = Class.create();
Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), {
  initializeRange: function() {
    this.range.selectNodeContents(this.element);
    this.range.collapse(true);
  },

  insertContent: function(fragments) {
    fragments.reverse(false).each((function(fragment) {
      this.element.insertBefore(fragment, this.element.firstChild);
    }).bind(this));
  }
});

Insertion.Bottom = Class.create();
Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), {
  initializeRange: function() {
    this.range.selectNodeContents(this.element);
    this.range.collapse(this.element);
  },

  insertContent: function(fragments) {
    fragments.each((function(fragment) {
      this.element.appendChild(fragment);
    }).bind(this));
  }
});

Insertion.After = Class.create();
Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), {
  initializeRange: function() {
    this.range.setStartAfter(this.element);
  },

  insertContent: function(fragments) {
    fragments.each((function(fragment) {
      this.element.parentNode.insertBefore(fragment,
        this.element.nextSibling);
    }).bind(this));
  }
});

/*--------------------------------------------------------------------------*/

Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
  initialize: function(element) {
    this.element = $(element);
  },

  _each: function(iterator) {
    this.element.className.split(/\s+/).select(function(name) {
      return name.length > 0;
    })._each(iterator);
  },

  set: function(className) {
    this.element.className = className;
  },

  add: function(classNameToAdd) {
    if (this.include(classNameToAdd)) return;
    this.set($A(this).concat(classNameToAdd).join(' '));
  },

  remove: function(classNameToRemove) {
    if (!this.include(classNameToRemove)) return;
    this.set($A(this).without(classNameToRemove).join(' '));
  },

  toString: function() {
    return $A(this).join(' ');
  }
};

Object.extend(Element.ClassNames.prototype, Enumerable);
var Selector = Class.create();
Selector.prototype = {
  initialize: function(expression) {
    this.params = {classNames: []};
    this.expression = expression.toString().strip();
    this.parseExpression();
    this.compileMatcher();
  },

  parseExpression: function() {
    function abort(message) { throw 'Parse error in selector: ' + message; }

    if (this.expression == '')  abort('empty expression');

    var params = this.params, expr = this.expression, match, modifier, clause, rest;
    while (match = expr.match(/^(.*)\[([a-z0-9_:-]+?)(?:([~\|!]?=)(?:"([^"]*)"|([^\]\s]*)))?\]$/i)) {
      params.attributes = params.attributes || [];
      params.attributes.push({name: match[2], operator: match[3], value: match[4] || match[5] || ''});
      expr = match[1];
    }

    if (expr == '*') return this.params.wildcard = true;

    while (match = expr.match(/^([^a-z0-9_-])?([a-z0-9_-]+)(.*)/i)) {
      modifier = match[1], clause = match[2], rest = match[3];
      switch (modifier) {
        case '#':       params.id = clause; break;
        case '.':       params.classNames.push(clause); break;
        case '':
        case undefined: params.tagName = clause.toUpperCase(); break;
        default:        abort(expr.inspect());
      }
      expr = rest;
    }

    if (expr.length > 0) abort(expr.inspect());
  },

  buildMatchExpression: function() {
    var params = this.params, conditions = [], clause;

    if (params.wildcard)
      conditions.push('true');
    if (clause = params.id)
      conditions.push('element.readAttribute("id") == ' + clause.inspect());
    if (clause = params.tagName)
      conditions.push('element.tagName.toUpperCase() == ' + clause.inspect());
    if ((clause = params.classNames).length > 0)
      for (var i = 0, length = clause.length; i < length; i++)
        conditions.push('element.hasClassName(' + clause[i].inspect() + ')');
    if (clause = params.attributes) {
      clause.each(function(attribute) {
        var value = 'element.readAttribute(' + attribute.name.inspect() + ')';
        var splitValueBy = function(delimiter) {
          return value + ' && ' + value + '.split(' + delimiter.inspect() + ')';
        }

        switch (attribute.operator) {
          case '=':       conditions.push(value + ' == ' + attribute.value.inspect()); break;
          case '~=':      conditions.push(splitValueBy(' ') + '.include(' + attribute.value.inspect() + ')'); break;
          case '|=':      conditions.push(
                            splitValueBy('-') + '.first().toUpperCase() == ' + attribute.value.toUpperCase().inspect()
                          ); break;
          case '!=':      conditions.push(value + ' != ' + attribute.value.inspect()); break;
          case '':
          case undefined: conditions.push('element.hasAttribute(' + attribute.name.inspect() + ')'); break;
          default:        throw 'Unknown operator ' + attribute.operator + ' in selector';
        }
      });
    }

    return conditions.join(' && ');
  },

  compileMatcher: function() {
    this.match = new Function('element', 'if (!element.tagName) return false; \
      element = $(element); \
      return ' + this.buildMatchExpression());
  },

  findElements: function(scope) {
    var element;

    if (element = $(this.params.id))
      if (this.match(element))
        if (!scope || Element.childOf(element, scope))
          return [element];

    scope = (scope || document).getElementsByTagName(this.params.tagName || '*');

    var results = [];
    for (var i = 0, length = scope.length; i < length; i++)
      if (this.match(element = scope[i]))
        results.push(Element.extend(element));

    return results;
  },

  toString: function() {
    return this.expression;
  }
}

Object.extend(Selector, {
  matchElements: function(elements, expression) {
    var selector = new Selector(expression);
    return elements.select(selector.match.bind(selector)).map(Element.extend);
  },

  findElement: function(elements, expression, index) {
    if (typeof expression == 'number') index = expression, expression = false;
    return Selector.matchElements(elements, expression || '*')[index || 0];
  },

  findChildElements: function(element, expressions) {
    return expressions.map(function(expression) {
      return expression.match(/[^\s"]+(?:"[^"]*"[^\s"]+)*/g).inject([null], function(results, expr) {
        var selector = new Selector(expr);
        return results.inject([], function(elements, result) {
          return elements.concat(selector.findElements(result || element));
        });
      });
    }).flatten();
  }
});

function $$() {
  return Selector.findChildElements(document, $A(arguments));
}
var Form = {
  reset: function(form) {
    $(form).reset();
    return form;
  },

  serializeElements: function(elements, getHash) {
    var data = elements.inject({}, function(result, element) {
      if (!element.disabled && element.name) {
        var key = element.name, value = $(element).getValue();
        if (value != undefined) {
          if (result[key]) {
            if (result[key].constructor != Array) result[key] = [result[key]];
            result[key].push(value);
          }
          else result[key] = value;
        }
      }
      return result;
    });

    return getHash ? data : Hash.toQueryString(data);
  }
};

Form.Methods = {
  serialize: function(form, getHash) {
    return Form.serializeElements(Form.getElements(form), getHash);
  },

  getElements: function(form) {
    return $A($(form).getElementsByTagName('*')).inject([],
      function(elements, child) {
        if (Form.Element.Serializers[child.tagName.toLowerCase()])
          elements.push(Element.extend(child));
        return elements;
      }
    );
  },

  getInputs: function(form, typeName, name) {
    form = $(form);
    var inputs = form.getElementsByTagName('input');

    if (!typeName && !name) return $A(inputs).map(Element.extend);

    for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
      var input = inputs[i];
      if ((typeName && input.type != typeName) || (name && input.name != name))
        continue;
      matchingInputs.push(Element.extend(input));
    }

    return matchingInputs;
  },

  disable: function(form) {
    form = $(form);
    form.getElements().each(function(element) {
      element.blur();
      element.disabled = 'true';
    });
    return form;
  },

  enable: function(form) {
    form = $(form);
    form.getElements().each(function(element) {
      element.disabled = '';
    });
    return form;
  },

  findFirstElement: function(form) {
    return $(form).getElements().find(function(element) {
      return element.type != 'hidden' && !element.disabled &&
        ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
    });
  },

  focusFirstElement: function(form) {
    form = $(form);
    form.findFirstElement().activate();
    return form;
  }
}

Object.extend(Form, Form.Methods);

/*--------------------------------------------------------------------------*/

Form.Element = {
  focus: function(element) {
    $(element).focus();
    return element;
  },

  select: function(element) {
    $(element).select();
    return element;
  }
}

Form.Element.Methods = {
  serialize: function(element) {
    element = $(element);
    if (!element.disabled && element.name) {
      var value = element.getValue();
      if (value != undefined) {
        var pair = {};
        pair[element.name] = value;
        return Hash.toQueryString(pair);
      }
    }
    return '';
  },

  getValue: function(element) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    return Form.Element.Serializers[method](element);
  },

  clear: function(element) {
    $(element).value = '';
    return element;
  },

  present: function(element) {
    return $(element).value != '';
  },

  activate: function(element) {
    element = $(element);
    element.focus();
    if (element.select && ( element.tagName.toLowerCase() != 'input' ||
      !['button', 'reset', 'submit'].include(element.type) ) )
      element.select();
    return element;
  },

  disable: function(element) {
    element = $(element);
    element.disabled = true;
    return element;
  },

  enable: function(element) {
    element = $(element);
    element.blur();
    element.disabled = false;
    return element;
  }
}

Object.extend(Form.Element, Form.Element.Methods);
var Field = Form.Element;
var $F = Form.Element.getValue;

/*--------------------------------------------------------------------------*/

Form.Element.Serializers = {
  input: function(element) {
    switch (element.type.toLowerCase()) {
      case 'checkbox':
      case 'radio':
        return Form.Element.Serializers.inputSelector(element);
      default:
        return Form.Element.Serializers.textarea(element);
    }
  },

  inputSelector: function(element) {
    return element.checked ? element.value : null;
  },

  textarea: function(element) {
    return element.value;
  },

  select: function(element) {
    return this[element.type == 'select-one' ?
      'selectOne' : 'selectMany'](element);
  },

  selectOne: function(element) {
    var index = element.selectedIndex;
    return index >= 0 ? this.optionValue(element.options[index]) : null;
  },

  selectMany: function(element) {
    var values, length = element.length;
    if (!length) return null;

    for (var i = 0, values = []; i < length; i++) {
      var opt = element.options[i];
      if (opt.selected) values.push(this.optionValue(opt));
    }
    return values;
  },

  optionValue: function(opt) {
    // extend element because hasAttribute may not be native
    return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
  }
}

/*--------------------------------------------------------------------------*/

Abstract.TimedObserver = function() {}
Abstract.TimedObserver.prototype = {
  initialize: function(element, frequency, callback) {
    this.frequency = frequency;
    this.element   = $(element);
    this.callback  = callback;

    this.lastValue = this.getValue();
    this.registerCallback();
  },

  registerCallback: function() {
    setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
  },

  onTimerEvent: function() {
    var value = this.getValue();
    var changed = ('string' == typeof this.lastValue && 'string' == typeof value
      ? this.lastValue != value : String(this.lastValue) != String(value));
    if (changed) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  }
}

Form.Element.Observer = Class.create();
Form.Element.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.Observer = Class.create();
Form.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {
  getValue: function() {
    return Form.serialize(this.element);
  }
});

/*--------------------------------------------------------------------------*/

Abstract.EventObserver = function() {}
Abstract.EventObserver.prototype = {
  initialize: function(element, callback) {
    this.element  = $(element);
    this.callback = callback;

    this.lastValue = this.getValue();
    if (this.element.tagName.toLowerCase() == 'form')
      this.registerFormCallbacks();
    else
      this.registerCallback(this.element);
  },

  onElementEvent: function() {
    var value = this.getValue();
    if (this.lastValue != value) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  },

  registerFormCallbacks: function() {
    Form.getElements(this.element).each(this.registerCallback.bind(this));
  },

  registerCallback: function(element) {
    if (element.type) {
      switch (element.type.toLowerCase()) {
        case 'checkbox':
        case 'radio':
          Event.observe(element, 'click', this.onElementEvent.bind(this));
          break;
        default:
          Event.observe(element, 'change', this.onElementEvent.bind(this));
          break;
      }
    }
  }
}

Form.Element.EventObserver = Class.create();
Form.Element.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.EventObserver = Class.create();
Form.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
  getValue: function() {
    return Form.serialize(this.element);
  }
});
if (!window.Event) {
  var Event = new Object();
}

Object.extend(Event, {
  KEY_BACKSPACE: 8,
  KEY_TAB:       9,
  KEY_RETURN:   13,
  KEY_ESC:      27,
  KEY_LEFT:     37,
  KEY_UP:       38,
  KEY_RIGHT:    39,
  KEY_DOWN:     40,
  KEY_DELETE:   46,
  KEY_HOME:     36,
  KEY_END:      35,
  KEY_PAGEUP:   33,
  KEY_PAGEDOWN: 34,

  element: function(event) {
    return event.target || event.srcElement;
  },

  isLeftClick: function(event) {
    return (((event.which) && (event.which == 1)) ||
            ((event.button) && (event.button == 1)));
  },

  pointerX: function(event) {
    return event.pageX || (event.clientX +
      (document.documentElement.scrollLeft || document.body.scrollLeft));
  },

  pointerY: function(event) {
    return event.pageY || (event.clientY +
      (document.documentElement.scrollTop || document.body.scrollTop));
  },

  stop: function(event) {
    if (event.preventDefault) {
      event.preventDefault();
      event.stopPropagation();
    } else {
      event.returnValue = false;
      event.cancelBubble = true;
    }
  },

  // find the first node with the given tagName, starting from the
  // node the event was triggered on; traverses the DOM upwards
  findElement: function(event, tagName) {
    var element = Event.element(event);
    while (element.parentNode && (!element.tagName ||
        (element.tagName.toUpperCase() != tagName.toUpperCase())))
      element = element.parentNode;
    return element;
  },

  observers: false,

  _observeAndCache: function(element, name, observer, useCapture) {
    if (!this.observers) this.observers = [];
    if (element.addEventListener) {
      this.observers.push([element, name, observer, useCapture]);
      element.addEventListener(name, observer, useCapture);
    } else if (element.attachEvent) {
      this.observers.push([element, name, observer, useCapture]);
      element.attachEvent('on' + name, observer);
    }
  },

  unloadCache: function() {
    if (!Event.observers) return;
    for (var i = 0, length = Event.observers.length; i < length; i++) {
      Event.stopObserving.apply(this, Event.observers[i]);
      Event.observers[i][0] = null;
    }
    Event.observers = false;
  },

  observe: function(element, name, observer, useCapture) {
    element = $(element);
    useCapture = useCapture || false;

    if (name == 'keypress' &&
        (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
        || element.attachEvent))
      name = 'keydown';

    Event._observeAndCache(element, name, observer, useCapture);
  },

  stopObserving: function(element, name, observer, useCapture) {
    element = $(element);
    useCapture = useCapture || false;

    if (name == 'keypress' &&
        (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
        || element.detachEvent))
      name = 'keydown';

    if (element.removeEventListener) {
      element.removeEventListener(name, observer, useCapture);
    } else if (element.detachEvent) {
      try {
        element.detachEvent('on' + name, observer);
      } catch (e) {}
    }
  }
});

/* prevent memory leaks in IE */
if (navigator.appVersion.match(/\bMSIE\b/))
  Event.observe(window, 'unload', Event.unloadCache, false);
var Position = {
  // set to true if needed, warning: firefox performance problems
  // NOT neeeded for page scrolling, only if draggable contained in
  // scrollable elements
  includeScrollOffsets: false,

  // must be called before calling withinIncludingScrolloffset, every time the
  // page is scrolled
  prepare: function() {
    this.deltaX =  window.pageXOffset
                || document.documentElement.scrollLeft
                || document.body.scrollLeft
                || 0;
    this.deltaY =  window.pageYOffset
                || document.documentElement.scrollTop
                || document.body.scrollTop
                || 0;
  },

  realOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return [valueL, valueT];
  },

  cumulativeOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
    } while (element);
    return [valueL, valueT];
  },

  positionedOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
      if (element) {
        if(element.tagName=='BODY') break;
        var p = Element.getStyle(element, 'position');
        if (p == 'relative' || p == 'absolute') break;
      }
    } while (element);
    return [valueL, valueT];
  },

  offsetParent: function(element) {
    if (element.offsetParent) return element.offsetParent;
    if (element == document.body) return element;

    while ((element = element.parentNode) && element != document.body)
      if (Element.getStyle(element, 'position') != 'static')
        return element;

    return document.body;
  },

  // caches x/y coordinate pair to use with overlap
  within: function(element, x, y) {
    if (this.includeScrollOffsets)
      return this.withinIncludingScrolloffsets(element, x, y);
    this.xcomp = x;
    this.ycomp = y;
    this.offset = this.cumulativeOffset(element);

    return (y >= this.offset[1] &&
            y <  this.offset[1] + element.offsetHeight &&
            x >= this.offset[0] &&
            x <  this.offset[0] + element.offsetWidth);
  },

  withinIncludingScrolloffsets: function(element, x, y) {
    var offsetcache = this.realOffset(element);

    this.xcomp = x + offsetcache[0] - this.deltaX;
    this.ycomp = y + offsetcache[1] - this.deltaY;
    this.offset = this.cumulativeOffset(element);

    return (this.ycomp >= this.offset[1] &&
            this.ycomp <  this.offset[1] + element.offsetHeight &&
            this.xcomp >= this.offset[0] &&
            this.xcomp <  this.offset[0] + element.offsetWidth);
  },

  // within must be called directly before
  overlap: function(mode, element) {
    if (!mode) return 0;
    if (mode == 'vertical')
      return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
        element.offsetHeight;
    if (mode == 'horizontal')
      return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
        element.offsetWidth;
  },

  page: function(forElement) {
    var valueT = 0, valueL = 0;

    var element = forElement;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;

      // Safari fix
      if (element.offsetParent==document.body)
        if (Element.getStyle(element,'position')=='absolute') break;

    } while (element = element.offsetParent);

    element = forElement;
    do {
      if (!window.opera || element.tagName=='BODY') {
        valueT -= element.scrollTop  || 0;
        valueL -= element.scrollLeft || 0;
      }
    } while (element = element.parentNode);

    return [valueL, valueT];
  },

  clone: function(source, target) {
    var options = Object.extend({
      setLeft:    true,
      setTop:     true,
      setWidth:   true,
      setHeight:  true,
      offsetTop:  0,
      offsetLeft: 0
    }, arguments[2] || {})

    // find page position of source
    source = $(source);
    var p = Position.page(source);

    // find coordinate system to use
    target = $(target);
    var delta = [0, 0];
    var parent = null;
    // delta [0,0] will do fine with position: fixed elements,
    // position:absolute needs offsetParent deltas
    if (Element.getStyle(target,'position') == 'absolute') {
      parent = Position.offsetParent(target);
      delta = Position.page(parent);
    }

    // correct by body offsets (fixes Safari)
    if (parent == document.body) {
      delta[0] -= document.body.offsetLeft;
      delta[1] -= document.body.offsetTop;
    }

    // set position
    if(options.setLeft)   target.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';
    if(options.setTop)    target.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';
    if(options.setWidth)  target.style.width = source.offsetWidth + 'px';
    if(options.setHeight) target.style.height = source.offsetHeight + 'px';
  },

  absolutize: function(element) {
    element = $(element);
    if (element.style.position == 'absolute') return;
    Position.prepare();

    var offsets = Position.positionedOffset(element);
    var top     = offsets[1];
    var left    = offsets[0];
    var width   = element.clientWidth;
    var height  = element.clientHeight;

    element._originalLeft   = left - parseFloat(element.style.left  || 0);
    element._originalTop    = top  - parseFloat(element.style.top || 0);
    element._originalWidth  = element.style.width;
    element._originalHeight = element.style.height;

    element.style.position = 'absolute';
    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.width  = width + 'px';
    element.style.height = height + 'px';
  },

  relativize: function(element) {
    element = $(element);
    if (element.style.position == 'relative') return;
    Position.prepare();

    element.style.position = 'relative';
    var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);
    var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);

    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.height = element._originalHeight;
    element.style.width  = element._originalWidth;
  }
}

// Safari returns margins on body which is incorrect if the child is absolutely
// positioned.  For performance reasons, redefine Position.cumulativeOffset for
// KHTML/WebKit only.
if (/Konqueror|Safari|KHTML/.test(navigator.userAgent)) {
  Position.cumulativeOffset = function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      if (element.offsetParent == document.body)
        if (Element.getStyle(element, 'position') == 'absolute') break;

      element = element.offsetParent;
    } while (element);

    return [valueL, valueT];
  }
}

Element.addMethods();
// script.aculo.us scriptaculous.js v1.7.0, Fri Jan 19 19:16:36 CET 2007

// Copyright (c) 2005, 2006 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// 
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// For details, see the script.aculo.us web site: http://script.aculo.us/

var Scriptaculous = {
  Version: '1.7.0',
  require: function(libraryName) {
    // inserting via DOM fails in Safari 2.0, so brute force approach
    document.write('<script type="text/javascript" src="'+libraryName+'"></script>');
  },
  load: function() {
    if((typeof Prototype=='undefined') || 
       (typeof Element == 'undefined') || 
       (typeof Element.Methods=='undefined') ||
       parseFloat(Prototype.Version.split(".")[0] + "." +
                  Prototype.Version.split(".")[1]) < 1.5)
       throw("script.aculo.us requires the Prototype JavaScript framework >= 1.5.0");
    
    $A(document.getElementsByTagName("script")).findAll( function(s) {
      return (s.src && s.src.match(/scriptaculous\.js(\?.*)?$/))
    }).each( function(s) {
      var path = s.src.replace(/scriptaculous\.js(\?.*)?$/,'');
      var includes = s.src.match(/\?.*load=([a-z,]*)/);
      (includes ? includes[1] : 'builder,effects,dragdrop,controls,slider').split(',').each(
       function(include) { Scriptaculous.require(path+include+'.js') });
    });
  }
}

Scriptaculous.load();
// script.aculo.us effects.js v1.7.0, Fri Jan 19 19:16:36 CET 2007

// Copyright (c) 2005, 2006 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// Contributors:
//  Justin Palmer (http://encytemedia.com/)
//  Mark Pilgrim (http://diveintomark.org/)
//  Martin Bialasinki
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/ 

// converts rgb() and #xxx to #xxxxxx format,  
// returns self (or first argument) if not convertable  
String.prototype.parseColor = function() {  
  var color = '#';
  if(this.slice(0,4) == 'rgb(') {  
    var cols = this.slice(4,this.length-1).split(',');  
    var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);  
  } else {  
    if(this.slice(0,1) == '#') {  
      if(this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();  
      if(this.length==7) color = this.toLowerCase();  
    }  
  }  
  return(color.length==7 ? color : (arguments[0] || this));  
}

/*--------------------------------------------------------------------------*/

Element.collectTextNodes = function(element) {  
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue : 
      (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
  }).flatten().join('');
}

Element.collectTextNodesIgnoreClass = function(element, className) {  
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue : 
      ((node.hasChildNodes() && !Element.hasClassName(node,className)) ? 
        Element.collectTextNodesIgnoreClass(node, className) : ''));
  }).flatten().join('');
}

Element.setContentZoom = function(element, percent) {
  element = $(element);  
  element.setStyle({fontSize: (percent/100) + 'em'});   
  if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);
  return element;
}

Element.getOpacity = function(element){
  return $(element).getStyle('opacity');
}

Element.setOpacity = function(element, value){
  return $(element).setStyle({opacity:value});
}

Element.getInlineOpacity = function(element){
  return $(element).style.opacity || '';
}

Element.forceRerendering = function(element) {
  try {
    element = $(element);
    var n = document.createTextNode(' ');
    element.appendChild(n);
    element.removeChild(n);
  } catch(e) { }
};

/*--------------------------------------------------------------------------*/

Array.prototype.call = function() {
  var args = arguments;
  this.each(function(f){ f.apply(this, args) });
}

/*--------------------------------------------------------------------------*/

var Effect = {
  _elementDoesNotExistError: {
    name: 'ElementDoesNotExistError',
    message: 'The specified DOM element does not exist, but is required for this effect to operate'
  },
  tagifyText: function(element) {
    if(typeof Builder == 'undefined')
      throw("Effect.tagifyText requires including script.aculo.us' builder.js library");
      
    var tagifyStyle = 'position:relative';
    if(/MSIE/.test(navigator.userAgent) && !window.opera) tagifyStyle += ';zoom:1';
    
    element = $(element);
    $A(element.childNodes).each( function(child) {
      if(child.nodeType==3) {
        child.nodeValue.toArray().each( function(character) {
          element.insertBefore(
            Builder.node('span',{style: tagifyStyle},
              character == ' ' ? String.fromCharCode(160) : character), 
              child);
        });
        Element.remove(child);
      }
    });
  },
  multiple: function(element, effect) {
    var elements;
    if(((typeof element == 'object') || 
        (typeof element == 'function')) && 
       (element.length))
      elements = element;
    else
      elements = $(element).childNodes;
      
    var options = Object.extend({
      speed: 0.1,
      delay: 0.0
    }, arguments[2] || {});
    var masterDelay = options.delay;

    $A(elements).each( function(element, index) {
      new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
    });
  },
  PAIRS: {
    'slide':  ['SlideDown','SlideUp'],
    'blind':  ['BlindDown','BlindUp'],
    'appear': ['Appear','Fade']
  },
  toggle: function(element, effect) {
    element = $(element);
    effect = (effect || 'appear').toLowerCase();
    var options = Object.extend({
      queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
    }, arguments[2] || {});
    Effect[element.visible() ? 
      Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
  }
};

var Effect2 = Effect; // deprecated

/* ------------- transitions ------------- */

Effect.Transitions = {
  linear: Prototype.K,
  sinoidal: function(pos) {
    return (-Math.cos(pos*Math.PI)/2) + 0.5;
  },
  reverse: function(pos) {
    return 1-pos;
  },
  flicker: function(pos) {
    return ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
  },
  wobble: function(pos) {
    return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
  },
  pulse: function(pos, pulses) { 
    pulses = pulses || 5; 
    return (
      Math.round((pos % (1/pulses)) * pulses) == 0 ? 
            ((pos * pulses * 2) - Math.floor(pos * pulses * 2)) : 
        1 - ((pos * pulses * 2) - Math.floor(pos * pulses * 2))
      );
  },
  none: function(pos) {
    return 0;
  },
  full: function(pos) {
    return 1;
  }
};

/* ------------- core effects ------------- */

Effect.ScopedQueue = Class.create();
Object.extend(Object.extend(Effect.ScopedQueue.prototype, Enumerable), {
  initialize: function() {
    this.effects  = [];
    this.interval = null;
  },
  _each: function(iterator) {
    this.effects._each(iterator);
  },
  add: function(effect) {
    var timestamp = new Date().getTime();
    
    var position = (typeof effect.options.queue == 'string') ? 
      effect.options.queue : effect.options.queue.position;
    
    switch(position) {
      case 'front':
        // move unstarted effects after this effect  
        this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
            e.startOn  += effect.finishOn;
            e.finishOn += effect.finishOn;
          });
        break;
      case 'with-last':
        timestamp = this.effects.pluck('startOn').max() || timestamp;
        break;
      case 'end':
        // start effect after last queued effect has finished
        timestamp = this.effects.pluck('finishOn').max() || timestamp;
        break;
    }
    
    effect.startOn  += timestamp;
    effect.finishOn += timestamp;

    if(!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
      this.effects.push(effect);
    
    if(!this.interval) 
      this.interval = setInterval(this.loop.bind(this), 15);
  },
  remove: function(effect) {
    this.effects = this.effects.reject(function(e) { return e==effect });
    if(this.effects.length == 0) {
      clearInterval(this.interval);
      this.interval = null;
    }
  },
  loop: function() {
    var timePos = new Date().getTime();
    for(var i=0, len=this.effects.length;i<len;i++) 
      if(this.effects[i]) this.effects[i].loop(timePos);
  }
});

Effect.Queues = {
  instances: $H(),
  get: function(queueName) {
    if(typeof queueName != 'string') return queueName;
    
    if(!this.instances[queueName])
      this.instances[queueName] = new Effect.ScopedQueue();
      
    return this.instances[queueName];
  }
}
Effect.Queue = Effect.Queues.get('global');

Effect.DefaultOptions = {
  transition: Effect.Transitions.sinoidal,
  duration:   1.0,   // seconds
  fps:        60.0,  // max. 60fps due to Effect.Queue implementation
  sync:       false, // true for combining
  from:       0.0,
  to:         1.0,
  delay:      0.0,
  queue:      'parallel'
}

Effect.Base = function() {};
Effect.Base.prototype = {
  position: null,
  start: function(options) {
    this.options      = Object.extend(Object.extend({},Effect.DefaultOptions), options || {});
    this.currentFrame = 0;
    this.state        = 'idle';
    this.startOn      = this.options.delay*1000;
    this.finishOn     = this.startOn + (this.options.duration*1000);
    this.event('beforeStart');
    if(!this.options.sync)
      Effect.Queues.get(typeof this.options.queue == 'string' ? 
        'global' : this.options.queue.scope).add(this);
  },
  loop: function(timePos) {
    if(timePos >= this.startOn) {
      if(timePos >= this.finishOn) {
        this.render(1.0);
        this.cancel();
        this.event('beforeFinish');
        if(this.finish) this.finish(); 
        this.event('afterFinish');
        return;  
      }
      var pos   = (timePos - this.startOn) / (this.finishOn - this.startOn);
      var frame = Math.round(pos * this.options.fps * this.options.duration);
      if(frame > this.currentFrame) {
        this.render(pos);
        this.currentFrame = frame;
      }
    }
  },
  render: function(pos) {
    if(this.state == 'idle') {
      this.state = 'running';
      this.event('beforeSetup');
      if(this.setup) this.setup();
      this.event('afterSetup');
    }
    if(this.state == 'running') {
      if(this.options.transition) pos = this.options.transition(pos);
      pos *= (this.options.to-this.options.from);
      pos += this.options.from;
      this.position = pos;
      this.event('beforeUpdate');
      if(this.update) this.update(pos);
      this.event('afterUpdate');
    }
  },
  cancel: function() {
    if(!this.options.sync)
      Effect.Queues.get(typeof this.options.queue == 'string' ? 
        'global' : this.options.queue.scope).remove(this);
    this.state = 'finished';
  },
  event: function(eventName) {
    if(this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
    if(this.options[eventName]) this.options[eventName](this);
  },
  inspect: function() {
    var data = $H();
    for(property in this)
      if(typeof this[property] != 'function') data[property] = this[property];
    return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
  }
}

Effect.Parallel = Class.create();
Object.extend(Object.extend(Effect.Parallel.prototype, Effect.Base.prototype), {
  initialize: function(effects) {
    this.effects = effects || [];
    this.start(arguments[1]);
  },
  update: function(position) {
    this.effects.invoke('render', position);
  },
  finish: function(position) {
    this.effects.each( function(effect) {
      effect.render(1.0);
      effect.cancel();
      effect.event('beforeFinish');
      if(effect.finish) effect.finish(position);
      effect.event('afterFinish');
    });
  }
});

Effect.Event = Class.create();
Object.extend(Object.extend(Effect.Event.prototype, Effect.Base.prototype), {
  initialize: function() {
    var options = Object.extend({
      duration: 0
    }, arguments[0] || {});
    this.start(options);
  },
  update: Prototype.emptyFunction
});

Effect.Opacity = Class.create();
Object.extend(Object.extend(Effect.Opacity.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    // make this work on IE on elements without 'layout'
    if(/MSIE/.test(navigator.userAgent) && !window.opera && (!this.element.currentStyle.hasLayout))
      this.element.setStyle({zoom: 1});
    var options = Object.extend({
      from: this.element.getOpacity() || 0.0,
      to:   1.0
    }, arguments[1] || {});
    this.start(options);
  },
  update: function(position) {
    this.element.setOpacity(position);
  }
});

Effect.Move = Class.create();
Object.extend(Object.extend(Effect.Move.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      x:    0,
      y:    0,
      mode: 'relative'
    }, arguments[1] || {});
    this.start(options);
  },
  setup: function() {
    // Bug in Opera: Opera returns the "real" position of a static element or
    // relative element that does not have top/left explicitly set.
    // ==> Always set top and left for position relative elements in your stylesheets 
    // (to 0 if you do not need them) 
    this.element.makePositioned();
    this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
    this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');
    if(this.options.mode == 'absolute') {
      // absolute movement, so we need to calc deltaX and deltaY
      this.options.x = this.options.x - this.originalLeft;
      this.options.y = this.options.y - this.originalTop;
    }
  },
  update: function(position) {
    this.element.setStyle({
      left: Math.round(this.options.x  * position + this.originalLeft) + 'px',
      top:  Math.round(this.options.y  * position + this.originalTop)  + 'px'
    });
  }
});

// for backwards compatibility
Effect.MoveBy = function(element, toTop, toLeft) {
  return new Effect.Move(element, 
    Object.extend({ x: toLeft, y: toTop }, arguments[3] || {}));
};

Effect.Scale = Class.create();
Object.extend(Object.extend(Effect.Scale.prototype, Effect.Base.prototype), {
  initialize: function(element, percent) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      scaleX: true,
      scaleY: true,
      scaleContent: true,
      scaleFromCenter: false,
      scaleMode: 'box',        // 'box' or 'contents' or {} with provided values
      scaleFrom: 100.0,
      scaleTo:   percent
    }, arguments[2] || {});
    this.start(options);
  },
  setup: function() {
    this.restoreAfterFinish = this.options.restoreAfterFinish || false;
    this.elementPositioning = this.element.getStyle('position');
    
    this.originalStyle = {};
    ['top','left','width','height','fontSize'].each( function(k) {
      this.originalStyle[k] = this.element.style[k];
    }.bind(this));
      
    this.originalTop  = this.element.offsetTop;
    this.originalLeft = this.element.offsetLeft;
    
    var fontSize = this.element.getStyle('font-size') || '100%';
    ['em','px','%','pt'].each( function(fontSizeType) {
      if(fontSize.indexOf(fontSizeType)>0) {
        this.fontSize     = parseFloat(fontSize);
        this.fontSizeType = fontSizeType;
      }
    }.bind(this));
    
    this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;
    
    this.dims = null;
    if(this.options.scaleMode=='box')
      this.dims = [this.element.offsetHeight, this.element.offsetWidth];
    if(/^content/.test(this.options.scaleMode))
      this.dims = [this.element.scrollHeight, this.element.scrollWidth];
    if(!this.dims)
      this.dims = [this.options.scaleMode.originalHeight,
                   this.options.scaleMode.originalWidth];
  },
  update: function(position) {
    var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
    if(this.options.scaleContent && this.fontSize)
      this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
    this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
  },
  finish: function(position) {
    if(this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
  },
  setDimensions: function(height, width) {
    var d = {};
    if(this.options.scaleX) d.width = Math.round(width) + 'px';
    if(this.options.scaleY) d.height = Math.round(height) + 'px';
    if(this.options.scaleFromCenter) {
      var topd  = (height - this.dims[0])/2;
      var leftd = (width  - this.dims[1])/2;
      if(this.elementPositioning == 'absolute') {
        if(this.options.scaleY) d.top = this.originalTop-topd + 'px';
        if(this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
      } else {
        if(this.options.scaleY) d.top = -topd + 'px';
        if(this.options.scaleX) d.left = -leftd + 'px';
      }
    }
    this.element.setStyle(d);
  }
});

Effect.Highlight = Class.create();
Object.extend(Object.extend(Effect.Highlight.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || {});
    this.start(options);
  },
  setup: function() {
    // Prevent executing on elements not in the layout flow
    if(this.element.getStyle('display')=='none') { this.cancel(); return; }
    // Disable background image during the effect
    this.oldStyle = {};
    if (!this.options.keepBackgroundImage) {
      this.oldStyle.backgroundImage = this.element.getStyle('background-image');
      this.element.setStyle({backgroundImage: 'none'});
    }
    if(!this.options.endcolor)
      this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
    if(!this.options.restorecolor)
      this.options.restorecolor = this.element.getStyle('background-color');
    // init color calculations
    this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
    this._delta = $R(0,2).map(function(i){ return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i] }.bind(this));
  },
  update: function(position) {
    this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
      return m+(Math.round(this._base[i]+(this._delta[i]*position)).toColorPart()); }.bind(this)) });
  },
  finish: function() {
    this.element.setStyle(Object.extend(this.oldStyle, {
      backgroundColor: this.options.restorecolor
    }));
  }
});

Effect.ScrollTo = Class.create();
Object.extend(Object.extend(Effect.ScrollTo.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    this.start(arguments[1] || {});
  },
  setup: function() {
    Position.prepare();
    var offsets = Position.cumulativeOffset(this.element);
    if(this.options.offset) offsets[1] += this.options.offset;
    var max = window.innerHeight ? 
      window.height - window.innerHeight :
      document.body.scrollHeight - 
        (document.documentElement.clientHeight ? 
          document.documentElement.clientHeight : document.body.clientHeight);
    this.scrollStart = Position.deltaY;
    this.delta = (offsets[1] > max ? max : offsets[1]) - this.scrollStart;
  },
  update: function(position) {
    Position.prepare();
    window.scrollTo(Position.deltaX, 
      this.scrollStart + (position*this.delta));
  }
});

/* ------------- combination effects ------------- */

Effect.Fade = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  var options = Object.extend({
  from: element.getOpacity() || 1.0,
  to:   0.0,
  afterFinishInternal: function(effect) { 
    if(effect.options.to!=0) return;
    effect.element.hide().setStyle({opacity: oldOpacity}); 
  }}, arguments[1] || {});
  return new Effect.Opacity(element,options);
}

Effect.Appear = function(element) {
  element = $(element);
  var options = Object.extend({
  from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
  to:   1.0,
  // force Safari to render floated elements properly
  afterFinishInternal: function(effect) {
    effect.element.forceRerendering();
  },
  beforeSetup: function(effect) {
    effect.element.setOpacity(effect.options.from).show(); 
  }}, arguments[1] || {});
  return new Effect.Opacity(element,options);
}

Effect.Puff = function(element) {
  element = $(element);
  var oldStyle = { 
    opacity: element.getInlineOpacity(), 
    position: element.getStyle('position'),
    top:  element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height
  };
  return new Effect.Parallel(
   [ new Effect.Scale(element, 200, 
      { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }), 
     new Effect.Opacity(element, { sync: true, to: 0.0 } ) ], 
     Object.extend({ duration: 1.0, 
      beforeSetupInternal: function(effect) {
        Position.absolutize(effect.effects[0].element)
      },
      afterFinishInternal: function(effect) {
         effect.effects[0].element.hide().setStyle(oldStyle); }
     }, arguments[1] || {})
   );
}

Effect.BlindUp = function(element) {
  element = $(element);
  element.makeClipping();
  return new Effect.Scale(element, 0,
    Object.extend({ scaleContent: false, 
      scaleX: false, 
      restoreAfterFinish: true,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping();
      } 
    }, arguments[1] || {})
  );
}

Effect.BlindDown = function(element) {
  element = $(element);
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({ 
    scaleContent: false, 
    scaleX: false,
    scaleFrom: 0,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makeClipping().setStyle({height: '0px'}).show(); 
    },  
    afterFinishInternal: function(effect) {
      effect.element.undoClipping();
    }
  }, arguments[1] || {}));
}

Effect.SwitchOff = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  return new Effect.Appear(element, Object.extend({
    duration: 0.4,
    from: 0,
    transition: Effect.Transitions.flicker,
    afterFinishInternal: function(effect) {
      new Effect.Scale(effect.element, 1, { 
        duration: 0.3, scaleFromCenter: true,
        scaleX: false, scaleContent: false, restoreAfterFinish: true,
        beforeSetup: function(effect) { 
          effect.element.makePositioned().makeClipping();
        },
        afterFinishInternal: function(effect) {
          effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});
        }
      })
    }
  }, arguments[1] || {}));
}

Effect.DropOut = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left'),
    opacity: element.getInlineOpacity() };
  return new Effect.Parallel(
    [ new Effect.Move(element, {x: 0, y: 100, sync: true }), 
      new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
    Object.extend(
      { duration: 0.5,
        beforeSetup: function(effect) {
          effect.effects[0].element.makePositioned(); 
        },
        afterFinishInternal: function(effect) {
          effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
        } 
      }, arguments[1] || {}));
}

Effect.Shake = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left') };
    return new Effect.Move(element, 
      { x:  20, y: 0, duration: 0.05, afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  40, y: 0, duration: 0.1,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -20, y: 0, duration: 0.05, afterFinishInternal: function(effect) {
        effect.element.undoPositioned().setStyle(oldStyle);
  }}) }}) }}) }}) }}) }});
}

Effect.SlideDown = function(element) {
  element = $(element).cleanWhitespace();
  // SlideDown need to have the content of the element wrapped in a container element with fixed height!
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({ 
    scaleContent: false, 
    scaleX: false, 
    scaleFrom: window.opera ? 0 : 1,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if(window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().setStyle({height: '0px'}).show(); 
    },
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' }); 
    },
    afterFinishInternal: function(effect) {
      effect.element.undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }
    }, arguments[1] || {})
  );
}

Effect.SlideUp = function(element) {
  element = $(element).cleanWhitespace();
  var oldInnerBottom = element.down().getStyle('bottom');
  return new Effect.Scale(element, window.opera ? 0 : 1,
   Object.extend({ scaleContent: false, 
    scaleX: false, 
    scaleMode: 'box',
    scaleFrom: 100,
    restoreAfterFinish: true,
    beforeStartInternal: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if(window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().show();
    },  
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' });
    },
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping().undoPositioned().setStyle({bottom: oldInnerBottom});
      effect.element.down().undoPositioned();
    }
   }, arguments[1] || {})
  );
}

// Bug in opera makes the TD containing this element expand for a instance after finish 
Effect.Squish = function(element) {
  return new Effect.Scale(element, window.opera ? 1 : 0, { 
    restoreAfterFinish: true,
    beforeSetup: function(effect) {
      effect.element.makeClipping(); 
    },  
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping(); 
    }
  });
}

Effect.Grow = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.full
  }, arguments[1] || {});
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();    
  var initialMoveX, initialMoveY;
  var moveX, moveY;
  
  switch (options.direction) {
    case 'top-left':
      initialMoveX = initialMoveY = moveX = moveY = 0; 
      break;
    case 'top-right':
      initialMoveX = dims.width;
      initialMoveY = moveY = 0;
      moveX = -dims.width;
      break;
    case 'bottom-left':
      initialMoveX = moveX = 0;
      initialMoveY = dims.height;
      moveY = -dims.height;
      break;
    case 'bottom-right':
      initialMoveX = dims.width;
      initialMoveY = dims.height;
      moveX = -dims.width;
      moveY = -dims.height;
      break;
    case 'center':
      initialMoveX = dims.width / 2;
      initialMoveY = dims.height / 2;
      moveX = -dims.width / 2;
      moveY = -dims.height / 2;
      break;
  }
  
  return new Effect.Move(element, {
    x: initialMoveX,
    y: initialMoveY,
    duration: 0.01, 
    beforeSetup: function(effect) {
      effect.element.hide().makeClipping().makePositioned();
    },
    afterFinishInternal: function(effect) {
      new Effect.Parallel(
        [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
          new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
          new Effect.Scale(effect.element, 100, {
            scaleMode: { originalHeight: dims.height, originalWidth: dims.width }, 
            sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
        ], Object.extend({
             beforeSetup: function(effect) {
               effect.effects[0].element.setStyle({height: '0px'}).show(); 
             },
             afterFinishInternal: function(effect) {
               effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle); 
             }
           }, options)
      )
    }
  });
}

Effect.Shrink = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.none
  }, arguments[1] || {});
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();
  var moveX, moveY;
  
  switch (options.direction) {
    case 'top-left':
      moveX = moveY = 0;
      break;
    case 'top-right':
      moveX = dims.width;
      moveY = 0;
      break;
    case 'bottom-left':
      moveX = 0;
      moveY = dims.height;
      break;
    case 'bottom-right':
      moveX = dims.width;
      moveY = dims.height;
      break;
    case 'center':  
      moveX = dims.width / 2;
      moveY = dims.height / 2;
      break;
  }
  
  return new Effect.Parallel(
    [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
      new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
      new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
    ], Object.extend({            
         beforeStartInternal: function(effect) {
           effect.effects[0].element.makePositioned().makeClipping(); 
         },
         afterFinishInternal: function(effect) {
           effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
       }, options)
  );
}

Effect.Pulsate = function(element) {
  element = $(element);
  var options    = arguments[1] || {};
  var oldOpacity = element.getInlineOpacity();
  var transition = options.transition || Effect.Transitions.sinoidal;
  var reverser   = function(pos){ return transition(1-Effect.Transitions.pulse(pos, options.pulses)) };
  reverser.bind(transition);
  return new Effect.Opacity(element, 
    Object.extend(Object.extend({  duration: 2.0, from: 0,
      afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
    }, options), {transition: reverser}));
}

Effect.Fold = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height };
  element.makeClipping();
  return new Effect.Scale(element, 5, Object.extend({   
    scaleContent: false,
    scaleX: false,
    afterFinishInternal: function(effect) {
    new Effect.Scale(element, 1, { 
      scaleContent: false, 
      scaleY: false,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping().setStyle(oldStyle);
      } });
  }}, arguments[1] || {}));
};

Effect.Morph = Class.create();
Object.extend(Object.extend(Effect.Morph.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      style: {}
    }, arguments[1] || {});
    if (typeof options.style == 'string') {
      if(options.style.indexOf(':') == -1) {
        var cssText = '', selector = '.' + options.style;
        $A(document.styleSheets).reverse().each(function(styleSheet) {
          if (styleSheet.cssRules) cssRules = styleSheet.cssRules;
          else if (styleSheet.rules) cssRules = styleSheet.rules;
          $A(cssRules).reverse().each(function(rule) {
            if (selector == rule.selectorText) {
              cssText = rule.style.cssText;
              throw $break;
            }
          });
          if (cssText) throw $break;
        });
        this.style = cssText.parseStyle();
        options.afterFinishInternal = function(effect){
          effect.element.addClassName(effect.options.style);
          effect.transforms.each(function(transform) {
            if(transform.style != 'opacity')
              effect.element.style[transform.style.camelize()] = '';
          });
        }
      } else this.style = options.style.parseStyle();
    } else this.style = $H(options.style)
    this.start(options);
  },
  setup: function(){
    function parseColor(color){
      if(!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff';
      color = color.parseColor();
      return $R(0,2).map(function(i){
        return parseInt( color.slice(i*2+1,i*2+3), 16 ) 
      });
    }
    this.transforms = this.style.map(function(pair){
      var property = pair[0].underscore().dasherize(), value = pair[1], unit = null;

      if(value.parseColor('#zzzzzz') != '#zzzzzz') {
        value = value.parseColor();
        unit  = 'color';
      } else if(property == 'opacity') {
        value = parseFloat(value);
        if(/MSIE/.test(navigator.userAgent) && !window.opera && (!this.element.currentStyle.hasLayout))
          this.element.setStyle({zoom: 1});
      } else if(Element.CSS_LENGTH.test(value)) 
        var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/),
          value = parseFloat(components[1]), unit = (components.length == 3) ? components[2] : null;

      var originalValue = this.element.getStyle(property);
      return $H({ 
        style: property, 
        originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0), 
        targetValue: unit=='color' ? parseColor(value) : value,
        unit: unit
      });
    }.bind(this)).reject(function(transform){
      return (
        (transform.originalValue == transform.targetValue) ||
        (
          transform.unit != 'color' &&
          (isNaN(transform.originalValue) || isNaN(transform.targetValue))
        )
      )
    });
  },
  update: function(position) {
    var style = $H(), value = null;
    this.transforms.each(function(transform){
      value = transform.unit=='color' ?
        $R(0,2).inject('#',function(m,v,i){
          return m+(Math.round(transform.originalValue[i]+
            (transform.targetValue[i] - transform.originalValue[i])*position)).toColorPart() }) : 
        transform.originalValue + Math.round(
          ((transform.targetValue - transform.originalValue) * position) * 1000)/1000 + transform.unit;
      style[transform.style] = value;
    });
    this.element.setStyle(style);
  }
});

Effect.Transform = Class.create();
Object.extend(Effect.Transform.prototype, {
  initialize: function(tracks){
    this.tracks  = [];
    this.options = arguments[1] || {};
    this.addTracks(tracks);
  },
  addTracks: function(tracks){
    tracks.each(function(track){
      var data = $H(track).values().first();
      this.tracks.push($H({
        ids:     $H(track).keys().first(),
        effect:  Effect.Morph,
        options: { style: data }
      }));
    }.bind(this));
    return this;
  },
  play: function(){
    return new Effect.Parallel(
      this.tracks.map(function(track){
        var elements = [$(track.ids) || $$(track.ids)].flatten();
        return elements.map(function(e){ return new track.effect(e, Object.extend({ sync:true }, track.options)) });
      }).flatten(),
      this.options
    );
  }
});

Element.CSS_PROPERTIES = $w(
  'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' + 
  'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +
  'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +
  'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +
  'fontSize fontWeight height left letterSpacing lineHeight ' +
  'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+
  'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +
  'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +
  'right textIndent top width wordSpacing zIndex');
  
Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;

String.prototype.parseStyle = function(){
  var element = Element.extend(document.createElement('div'));
  element.innerHTML = '<div style="' + this + '"></div>';
  var style = element.down().style, styleRules = $H();
  
  Element.CSS_PROPERTIES.each(function(property){
    if(style[property]) styleRules[property] = style[property]; 
  });
  if(/MSIE/.test(navigator.userAgent) && !window.opera && this.indexOf('opacity') > -1) {
    styleRules.opacity = this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1];
  }
  return styleRules;
};

Element.morph = function(element, style) {
  new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || {}));
  return element;
};

['setOpacity','getOpacity','getInlineOpacity','forceRerendering','setContentZoom',
 'collectTextNodes','collectTextNodesIgnoreClass','morph'].each( 
  function(f) { Element.Methods[f] = Element[f]; }
);

Element.Methods.visualEffect = function(element, effect, options) {
  s = effect.gsub(/_/, '-').camelize();
  effect_class = s.charAt(0).toUpperCase() + s.substring(1);
  new Effect[effect_class](element, options);
  return $(element);
};

Element.addMethods();
// script.aculo.us dragdrop.js v1.7.0, Fri Jan 19 19:16:36 CET 2007

// Copyright (c) 2005, 2006 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005, 2006 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz)
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

if(typeof Effect == 'undefined')
  throw("dragdrop.js requires including script.aculo.us' effects.js library");

var Droppables = {
  drops: [],

  remove: function(element) {
    this.drops = this.drops.reject(function(d) { return d.element==$(element) });
  },

  add: function(element) {
    element = $(element);
    var options = Object.extend({
      greedy:     true,
      hoverclass: null,
      tree:       false
    }, arguments[1] || {});

    // cache containers
    if(options.containment) {
      options._containers = [];
      var containment = options.containment;
      if((typeof containment == 'object') && 
        (containment.constructor == Array)) {
        containment.each( function(c) { options._containers.push($(c)) });
      } else {
        options._containers.push($(containment));
      }
    }
    
    if(options.accept) options.accept = [options.accept].flatten();

    Element.makePositioned(element); // fix IE
    options.element = element;

    this.drops.push(options);
  },
  
  findDeepestChild: function(drops) {
    deepest = drops[0];
      
    for (i = 1; i < drops.length; ++i)
      if (Element.isParent(drops[i].element, deepest.element))
        deepest = drops[i];
    
    return deepest;
  },

  isContained: function(element, drop) {
    var containmentNode;
    if(drop.tree) {
      containmentNode = element.treeNode; 
    } else {
      containmentNode = element.parentNode;
    }
    return drop._containers.detect(function(c) { return containmentNode == c });
  },
  
  isAffected: function(point, element, drop) {
    return (
      (drop.element!=element) &&
      ((!drop._containers) ||
        this.isContained(element, drop)) &&
      ((!drop.accept) ||
        (Element.classNames(element).detect( 
          function(v) { return drop.accept.include(v) } ) )) &&
      Position.within(drop.element, point[0], point[1]) );
  },

  deactivate: function(drop) {
    if(drop.hoverclass)
      Element.removeClassName(drop.element, drop.hoverclass);
    this.last_active = null;
  },

  activate: function(drop) {
    if(drop.hoverclass)
      Element.addClassName(drop.element, drop.hoverclass);
    this.last_active = drop;
  },

  show: function(point, element) {
    if(!this.drops.length) return;
    var affected = [];
    
    if(this.last_active) this.deactivate(this.last_active);
    this.drops.each( function(drop) {
      if(Droppables.isAffected(point, element, drop))
        affected.push(drop);
    });
        
    if(affected.length>0) {
      drop = Droppables.findDeepestChild(affected);
      Position.within(drop.element, point[0], point[1]);
      if(drop.onHover)
        drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));
      
      Droppables.activate(drop);
    }
  },

  fire: function(event, element) {
    if(!this.last_active) return;
    Position.prepare();

    if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active))
      if (this.last_active.onDrop) 
        this.last_active.onDrop(element, this.last_active.element, event);
  },

  reset: function() {
    if(this.last_active)
      this.deactivate(this.last_active);
  }
}

var Draggables = {
  drags: [],
  observers: [],
  
  register: function(draggable) {
    if(this.drags.length == 0) {
      this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
      this.eventMouseMove = this.updateDrag.bindAsEventListener(this);
      this.eventKeypress  = this.keyPress.bindAsEventListener(this);
      
      Event.observe(document, "mouseup", this.eventMouseUp);
      Event.observe(document, "mousemove", this.eventMouseMove);
      Event.observe(document, "keypress", this.eventKeypress);
    }
    this.drags.push(draggable);
  },
  
  unregister: function(draggable) {
    this.drags = this.drags.reject(function(d) { return d==draggable });
    if(this.drags.length == 0) {
      Event.stopObserving(document, "mouseup", this.eventMouseUp);
      Event.stopObserving(document, "mousemove", this.eventMouseMove);
      Event.stopObserving(document, "keypress", this.eventKeypress);
    }
  },
  
  activate: function(draggable) {
    if(draggable.options.delay) { 
      this._timeout = setTimeout(function() { 
        Draggables._timeout = null; 
        window.focus(); 
        Draggables.activeDraggable = draggable; 
      }.bind(this), draggable.options.delay); 
    } else {
      window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
      this.activeDraggable = draggable;
    }
  },
  
  deactivate: function() {
    this.activeDraggable = null;
  },
  
  updateDrag: function(event) {
    if(!this.activeDraggable) return;
    var pointer = [Event.pointerX(event), Event.pointerY(event)];
    // Mozilla-based browsers fire successive mousemove events with
    // the same coordinates, prevent needless redrawing (moz bug?)
    if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
    this._lastPointer = pointer;
    
    this.activeDraggable.updateDrag(event, pointer);
  },
  
  endDrag: function(event) {
    if(this._timeout) { 
      clearTimeout(this._timeout); 
      this._timeout = null; 
    }
    if(!this.activeDraggable) return;
    this._lastPointer = null;
    this.activeDraggable.endDrag(event);
    this.activeDraggable = null;
  },
  
  keyPress: function(event) {
    if(this.activeDraggable)
      this.activeDraggable.keyPress(event);
  },
  
  addObserver: function(observer) {
    this.observers.push(observer);
    this._cacheObserverCallbacks();
  },
  
  removeObserver: function(element) {  // element instead of observer fixes mem leaks
    this.observers = this.observers.reject( function(o) { return o.element==element });
    this._cacheObserverCallbacks();
  },
  
  notify: function(eventName, draggable, event) {  // 'onStart', 'onEnd', 'onDrag'
    if(this[eventName+'Count'] > 0)
      this.observers.each( function(o) {
        if(o[eventName]) o[eventName](eventName, draggable, event);
      });
    if(draggable.options[eventName]) draggable.options[eventName](draggable, event);
  },
  
  _cacheObserverCallbacks: function() {
    ['onStart','onEnd','onDrag'].each( function(eventName) {
      Draggables[eventName+'Count'] = Draggables.observers.select(
        function(o) { return o[eventName]; }
      ).length;
    });
  }
}

/*--------------------------------------------------------------------------*/

var Draggable = Class.create();
Draggable._dragging    = {};

Draggable.prototype = {
  initialize: function(element) {
    var defaults = {
      handle: false,
      reverteffect: function(element, top_offset, left_offset) {
        var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
        new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
          queue: {scope:'_draggable', position:'end'}
        });
      },
      endeffect: function(element) {
        var toOpacity = typeof element._opacity == 'number' ? element._opacity : 1.0;
        new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity, 
          queue: {scope:'_draggable', position:'end'},
          afterFinish: function(){ 
            Draggable._dragging[element] = false 
          }
        }); 
      },
      zindex: 1000,
      revert: false,
      scroll: false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      snap: false,  // false, or xy or [x,y] or function(x,y){ return [x,y] }
      delay: 0
    };
    
    if(!arguments[1] || typeof arguments[1].endeffect == 'undefined')
      Object.extend(defaults, {
        starteffect: function(element) {
          element._opacity = Element.getOpacity(element);
          Draggable._dragging[element] = true;
          new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7}); 
        }
      });
    
    var options = Object.extend(defaults, arguments[1] || {});

    this.element = $(element);
    
    if(options.handle && (typeof options.handle == 'string'))
      this.handle = this.element.down('.'+options.handle, 0);
    
    if(!this.handle) this.handle = $(options.handle);
    if(!this.handle) this.handle = this.element;
    
    if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
      options.scroll = $(options.scroll);
      this._isScrollChild = Element.childOf(this.element, options.scroll);
    }

    Element.makePositioned(this.element); // fix IE    

    this.delta    = this.currentDelta();
    this.options  = options;
    this.dragging = false;   

    this.eventMouseDown = this.initDrag.bindAsEventListener(this);
    Event.observe(this.handle, "mousedown", this.eventMouseDown);
    
    Draggables.register(this);
  },
  
  destroy: function() {
    Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
    Draggables.unregister(this);
  },
  
  currentDelta: function() {
    return([
      parseInt(Element.getStyle(this.element,'left') || '0'),
      parseInt(Element.getStyle(this.element,'top') || '0')]);
  },
  
  initDrag: function(event) {
    if(typeof Draggable._dragging[this.element] != 'undefined' &&
      Draggable._dragging[this.element]) return;
    if(Event.isLeftClick(event)) {    
      // abort on form elements, fixes a Firefox issue
      var src = Event.element(event);
      if((tag_name = src.tagName.toUpperCase()) && (
        tag_name=='INPUT' ||
        tag_name=='SELECT' ||
        tag_name=='OPTION' ||
        tag_name=='BUTTON' ||
        tag_name=='TEXTAREA')) return;
        
      var pointer = [Event.pointerX(event), Event.pointerY(event)];
      var pos     = Position.cumulativeOffset(this.element);
      this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });
      
      Draggables.activate(this);
      Event.stop(event);
    }
  },
  
  startDrag: function(event) {
    this.dragging = true;
    
    if(this.options.zindex) {
      this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
      this.element.style.zIndex = this.options.zindex;
    }
    
    if(this.options.ghosting) {
      this._clone = this.element.cloneNode(true);
      Position.absolutize(this.element);
      this.element.parentNode.insertBefore(this._clone, this.element);
    }
    
    if(this.options.scroll) {
      if (this.options.scroll == window) {
        var where = this._getWindowScroll(this.options.scroll);
        this.originalScrollLeft = where.left;
        this.originalScrollTop = where.top;
      } else {
        this.originalScrollLeft = this.options.scroll.scrollLeft;
        this.originalScrollTop = this.options.scroll.scrollTop;
      }
    }
    
    Draggables.notify('onStart', this, event);
        
    if(this.options.starteffect) this.options.starteffect(this.element);
  },
  
  updateDrag: function(event, pointer) {
    if(!this.dragging) this.startDrag(event);
    Position.prepare();
    Droppables.show(pointer, this.element);
    Draggables.notify('onDrag', this, event);
    
    this.draw(pointer);
    if(this.options.change) this.options.change(this);
    
    if(this.options.scroll) {
      this.stopScrolling();
      
      var p;
      if (this.options.scroll == window) {
        with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; }
      } else {
        p = Position.page(this.options.scroll);
        p[0] += this.options.scroll.scrollLeft + Position.deltaX;
        p[1] += this.options.scroll.scrollTop + Position.deltaY;
        p.push(p[0]+this.options.scroll.offsetWidth);
        p.push(p[1]+this.options.scroll.offsetHeight);
      }
      var speed = [0,0];
      if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
      if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
      if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
      if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
      this.startScrolling(speed);
    }
    
    // fix AppleWebKit rendering
    if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);
    
    Event.stop(event);
  },
  
  finishDrag: function(event, success) {
    this.dragging = false;

    if(this.options.ghosting) {
      Position.relativize(this.element);
      Element.remove(this._clone);
      this._clone = null;
    }

    if(success) Droppables.fire(event, this.element);
    Draggables.notify('onEnd', this, event);

    var revert = this.options.revert;
    if(revert && typeof revert == 'function') revert = revert(this.element);
    
    var d = this.currentDelta();
    if(revert && this.options.reverteffect) {
      this.options.reverteffect(this.element, 
        d[1]-this.delta[1], d[0]-this.delta[0]);
    } else {
      this.delta = d;
    }

    if(this.options.zindex)
      this.element.style.zIndex = this.originalZ;

    if(this.options.endeffect) 
      this.options.endeffect(this.element);
      
    Draggables.deactivate(this);
    Droppables.reset();
  },
  
  keyPress: function(event) {
    if(event.keyCode!=Event.KEY_ESC) return;
    this.finishDrag(event, false);
    Event.stop(event);
  },
  
  endDrag: function(event) {
    if(!this.dragging) return;
    this.stopScrolling();
    this.finishDrag(event, true);
    Event.stop(event);
  },
  
  draw: function(point) {
    var pos = Position.cumulativeOffset(this.element);
    if(this.options.ghosting) {
      var r   = Position.realOffset(this.element);
      pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
    }
    
    var d = this.currentDelta();
    pos[0] -= d[0]; pos[1] -= d[1];
    
    if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
      pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
      pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
    }
    
    var p = [0,1].map(function(i){ 
      return (point[i]-pos[i]-this.offset[i]) 
    }.bind(this));
    
    if(this.options.snap) {
      if(typeof this.options.snap == 'function') {
        p = this.options.snap(p[0],p[1],this);
      } else {
      if(this.options.snap instanceof Array) {
        p = p.map( function(v, i) {
          return Math.round(v/this.options.snap[i])*this.options.snap[i] }.bind(this))
      } else {
        p = p.map( function(v) {
          return Math.round(v/this.options.snap)*this.options.snap }.bind(this))
      }
    }}
    
    var style = this.element.style;
    if((!this.options.constraint) || (this.options.constraint=='horizontal'))
      style.left = p[0] + "px";
    if((!this.options.constraint) || (this.options.constraint=='vertical'))
      style.top  = p[1] + "px";
    
    if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
  },
  
  stopScrolling: function() {
    if(this.scrollInterval) {
      clearInterval(this.scrollInterval);
      this.scrollInterval = null;
      Draggables._lastScrollPointer = null;
    }
  },
  
  startScrolling: function(speed) {
    if(!(speed[0] || speed[1])) return;
    this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed];
    this.lastScrolled = new Date();
    this.scrollInterval = setInterval(this.scroll.bind(this), 10);
  },
  
  scroll: function() {
    var current = new Date();
    var delta = current - this.lastScrolled;
    this.lastScrolled = current;
    if(this.options.scroll == window) {
      with (this._getWindowScroll(this.options.scroll)) {
        if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
          var d = delta / 1000;
          this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] );
        }
      }
    } else {
      this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
      this.options.scroll.scrollTop  += this.scrollSpeed[1] * delta / 1000;
    }
    
    Position.prepare();
    Droppables.show(Draggables._lastPointer, this.element);
    Draggables.notify('onDrag', this);
    if (this._isScrollChild) {
      Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);
      Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;
      Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;
      if (Draggables._lastScrollPointer[0] < 0)
        Draggables._lastScrollPointer[0] = 0;
      if (Draggables._lastScrollPointer[1] < 0)
        Draggables._lastScrollPointer[1] = 0;
      this.draw(Draggables._lastScrollPointer);
    }
    
    if(this.options.change) this.options.change(this);
  },
  
  _getWindowScroll: function(w) {
    var T, L, W, H;
    with (w.document) {
      if (w.document.documentElement && documentElement.scrollTop) {
        T = documentElement.scrollTop;
        L = documentElement.scrollLeft;
      } else if (w.document.body) {
        T = body.scrollTop;
        L = body.scrollLeft;
      }
      if (w.innerWidth) {
        W = w.innerWidth;
        H = w.innerHeight;
      } else if (w.document.documentElement && documentElement.clientWidth) {
        W = documentElement.clientWidth;
        H = documentElement.clientHeight;
      } else {
        W = body.offsetWidth;
        H = body.offsetHeight
      }
    }
    return { top: T, left: L, width: W, height: H };
  }
}

/*--------------------------------------------------------------------------*/

var SortableObserver = Class.create();
SortableObserver.prototype = {
  initialize: function(element, observer) {
    this.element   = $(element);
    this.observer  = observer;
    this.lastValue = Sortable.serialize(this.element);
  },
  
  onStart: function() {
    this.lastValue = Sortable.serialize(this.element);
  },
  
  onEnd: function() {
    Sortable.unmark();
    if(this.lastValue != Sortable.serialize(this.element))
      this.observer(this.element)
  }
}

var Sortable = {
  SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,
  
  sortables: {},
  
  _findRootElement: function(element) {
    while (element.tagName.toUpperCase() != "BODY") {  
      if(element.id && Sortable.sortables[element.id]) return element;
      element = element.parentNode;
    }
  },

  options: function(element) {
    element = Sortable._findRootElement($(element));
    if(!element) return;
    return Sortable.sortables[element.id];
  },
  
  destroy: function(element){
    var s = Sortable.options(element);
    
    if(s) {
      Draggables.removeObserver(s.element);
      s.droppables.each(function(d){ Droppables.remove(d) });
      s.draggables.invoke('destroy');
      
      delete Sortable.sortables[s.element.id];
    }
  },

  create: function(element) {
    element = $(element);
    var options = Object.extend({ 
      element:     element,
      tag:         'li',       // assumes li children, override with tag: 'tagname'
      dropOnEmpty: false,
      tree:        false,
      treeTag:     'ul',
      overlap:     'vertical', // one of 'vertical', 'horizontal'
      constraint:  'vertical', // one of 'vertical', 'horizontal', false
      containment: element,    // also takes array of elements (or id's); or false
      handle:      false,      // or a CSS class
      only:        false,
      delay:       0,
      hoverclass:  null,
      ghosting:    false,
      scroll:      false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      format:      this.SERIALIZE_RULE,
      onChange:    Prototype.emptyFunction,
      onUpdate:    Prototype.emptyFunction
    }, arguments[1] || {});

    // clear any old sortable with same element
    this.destroy(element);

    // build options for the draggables
    var options_for_draggable = {
      revert:      true,
      scroll:      options.scroll,
      scrollSpeed: options.scrollSpeed,
      scrollSensitivity: options.scrollSensitivity,
      delay:       options.delay,
      ghosting:    options.ghosting,
      constraint:  options.constraint,
      handle:      options.handle };

    if(options.starteffect)
      options_for_draggable.starteffect = options.starteffect;

    if(options.reverteffect)
      options_for_draggable.reverteffect = options.reverteffect;
    else
      if(options.ghosting) options_for_draggable.reverteffect = function(element) {
        element.style.top  = 0;
        element.style.left = 0;
      };

    if(options.endeffect)
      options_for_draggable.endeffect = options.endeffect;

    if(options.zindex)
      options_for_draggable.zindex = options.zindex;

    // build options for the droppables  
    var options_for_droppable = {
      overlap:     options.overlap,
      containment: options.containment,
      tree:        options.tree,
      hoverclass:  options.hoverclass,
      onHover:     Sortable.onHover
    }
    
    var options_for_tree = {
      onHover:      Sortable.onEmptyHover,
      overlap:      options.overlap,
      containment:  options.containment,
      hoverclass:   options.hoverclass
    }

    // fix for gecko engine
    Element.cleanWhitespace(element); 

    options.draggables = [];
    options.droppables = [];

    // drop on empty handling
    if(options.dropOnEmpty || options.tree) {
      Droppables.add(element, options_for_tree);
      options.droppables.push(element);
    }

    (this.findElements(element, options) || []).each( function(e) {
      // handles are per-draggable
      var handle = options.handle ? 
        $(e).down('.'+options.handle,0) : e;    
      options.draggables.push(
        new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
      Droppables.add(e, options_for_droppable);
      if(options.tree) e.treeNode = element;
      options.droppables.push(e);      
    });
    
    if(options.tree) {
      (Sortable.findTreeElements(element, options) || []).each( function(e) {
        Droppables.add(e, options_for_tree);
        e.treeNode = element;
        options.droppables.push(e);
      });
    }

    // keep reference
    this.sortables[element.id] = options;

    // for onupdate
    Draggables.addObserver(new SortableObserver(element, options.onUpdate));

  },

  // return all suitable-for-sortable elements in a guaranteed order
  findElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.tag);
  },
  
  findTreeElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.treeTag);
  },

  onHover: function(element, dropon, overlap) {
    if(Element.isParent(dropon, element)) return;

    if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) {
      return;
    } else if(overlap>0.5) {
      Sortable.mark(dropon, 'before');
      if(dropon.previousSibling != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, dropon);
        if(dropon.parentNode!=oldParentNode) 
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    } else {
      Sortable.mark(dropon, 'after');
      var nextElement = dropon.nextSibling || null;
      if(nextElement != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, nextElement);
        if(dropon.parentNode!=oldParentNode) 
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    }
  },
  
  onEmptyHover: function(element, dropon, overlap) {
    var oldParentNode = element.parentNode;
    var droponOptions = Sortable.options(dropon);
        
    if(!Element.isParent(dropon, element)) {
      var index;
      
      var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
      var child = null;
            
      if(children) {
        var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);
        
        for (index = 0; index < children.length; index += 1) {
          if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
            offset -= Element.offsetSize (children[index], droponOptions.overlap);
          } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
            child = index + 1 < children.length ? children[index + 1] : null;
            break;
          } else {
            child = children[index];
            break;
          }
        }
      }
      
      dropon.insertBefore(element, child);
      
      Sortable.options(oldParentNode).onChange(element);
      droponOptions.onChange(element);
    }
  },

  unmark: function() {
    if(Sortable._marker) Sortable._marker.hide();
  },

  mark: function(dropon, position) {
    // mark on ghosting only
    var sortable = Sortable.options(dropon.parentNode);
    if(sortable && !sortable.ghosting) return; 

    if(!Sortable._marker) {
      Sortable._marker = 
        ($('dropmarker') || Element.extend(document.createElement('DIV'))).
          hide().addClassName('dropmarker').setStyle({position:'absolute'});
      document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
    }    
    var offsets = Position.cumulativeOffset(dropon);
    Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});
    
    if(position=='after')
      if(sortable.overlap == 'horizontal') 
        Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
      else
        Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});
    
    Sortable._marker.show();
  },
  
  _tree: function(element, options, parent) {
    var children = Sortable.findElements(element, options) || [];
  
    for (var i = 0; i < children.length; ++i) {
      var match = children[i].id.match(options.format);

      if (!match) continue;
      
      var child = {
        id: encodeURIComponent(match ? match[1] : null),
        element: element,
        parent: parent,
        children: [],
        position: parent.children.length,
        container: $(children[i]).down(options.treeTag)
      }
      
      /* Get the element containing the children and recurse over it */
      if (child.container)
        this._tree(child.container, options, child)
      
      parent.children.push (child);
    }

    return parent; 
  },

  tree: function(element) {
    element = $(element);
    var sortableOptions = this.options(element);
    var options = Object.extend({
      tag: sortableOptions.tag,
      treeTag: sortableOptions.treeTag,
      only: sortableOptions.only,
      name: element.id,
      format: sortableOptions.format
    }, arguments[1] || {});
    
    var root = {
      id: null,
      parent: null,
      children: [],
      container: element,
      position: 0
    }
    
    return Sortable._tree(element, options, root);
  },

  /* Construct a [i] index for a particular node */
  _constructIndex: function(node) {
    var index = '';
    do {
      if (node.id) index = '[' + node.position + ']' + index;
    } while ((node = node.parent) != null);
    return index;
  },

  sequence: function(element) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[1] || {});
    
    return $(this.findElements(element, options) || []).map( function(item) {
      return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
    });
  },

  setSequence: function(element, new_sequence) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[2] || {});
    
    var nodeMap = {};
    this.findElements(element, options).each( function(n) {
        if (n.id.match(options.format))
            nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
        n.parentNode.removeChild(n);
    });
   
    new_sequence.each(function(ident) {
      var n = nodeMap[ident];
      if (n) {
        n[1].appendChild(n[0]);
        delete nodeMap[ident];
      }
    });
  },
  
  serialize: function(element) {
    element = $(element);
    var options = Object.extend(Sortable.options(element), arguments[1] || {});
    var name = encodeURIComponent(
      (arguments[1] && arguments[1].name) ? arguments[1].name : element.id);
    
    if (options.tree) {
      return Sortable.tree(element, arguments[1]).children.map( function (item) {
        return [name + Sortable._constructIndex(item) + "[id]=" + 
                encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
      }).flatten().join('&');
    } else {
      return Sortable.sequence(element, arguments[1]).map( function(item) {
        return name + "[]=" + encodeURIComponent(item);
      }).join('&');
    }
  }
}

// Returns true if child is contained within element
Element.isParent = function(child, element) {
  if (!child.parentNode || child == element) return false;
  if (child.parentNode == element) return true;
  return Element.isParent(child.parentNode, element);
}

Element.findChildren = function(element, only, recursive, tagName) {    
  if(!element.hasChildNodes()) return null;
  tagName = tagName.toUpperCase();
  if(only) only = [only].flatten();
  var elements = [];
  $A(element.childNodes).each( function(e) {
    if(e.tagName && e.tagName.toUpperCase()==tagName &&
      (!only || (Element.classNames(e).detect(function(v) { return only.include(v) }))))
        elements.push(e);
    if(recursive) {
      var grandchildren = Element.findChildren(e, only, recursive, tagName);
      if(grandchildren) elements.push(grandchildren);
    }
  });

  return (elements.length>0 ? elements.flatten() : []);
}

Element.offsetSize = function (element, type) {
  return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
}

/* 
  popup.js

  A lightweight general purpose JavaScript DOM element popup class.

  Webpage:
    http://www.methods.co.nz/popup/popup.html

  Inspired by:
    Lightbox2: http://www.huddletogether.com/projects/lightbox2/
    Lightbox Gone Wild: http://particletree.com/features/lightbox-gone-wild/
    Tooltip: http://blog.innerewut.de/pages/tooltip
    Prototype library: http://www.prototypejs.org/
    Scriptaculous library: http://script.aculo.us/

  Attributions:
    - Uses the getPageSize() function from Lightbox v2.02 by Lokesh Dhakar
      (http://www.huddletogether.com/projects/lightbox2/).
    - Adapted the the modal overlay technique used in Lightbox v2.02 by Lokesh
      Dhakar (http://www.huddletogether.com/projects/lightbox2/).

  Version: 1.0.1

  Author:    Stuart Rackham <srackham@methods.co.nz>
  License:   This source code is released under the MIT license.

  Copyright (c) Stuart Rackham 2007

*/

var Popup = Class.create();
Popup.zIndex = 1000;  // z-index of first popup.

Popup.prototype = {

  /*
    Popup creation
  */
  initialize: function(popup, link) {
    var options = Object.extend({
      modal: false,
      effect: 'fade',
      hidden: true,
      closebox: 'popup_closebox',       // CSS class name of click-to-close elements.
      draghandle: 'popup_draghandle'    // CSS class name of drag handle elements.
    }, arguments[2] || {});
    options.position = options.position || (options.modal ? 'center' : 'auto');
    options.trigger = options.trigger || (options.modal ? 'click' : 'mouseover');
    options.duration = this.first_value(options.duration, Popup.duration, 0.5);
    options.show_duration = this.first_value(options.show_duration, options.duration);
    options.hide_duration = this.first_value(options.hide_duration, options.duration);
    options.opacity = this.first_value(options.opacity, Popup.opacity, 0.5);
    options.show_delay = this.first_value(options.show_delay, Popup.show_delay, 500);
    options.hide_delay = this.first_value(options.hide_delay, Popup.hide_delay, 200);
    options.cursor_margin = this.first_value(options.cursor_margin, Popup.cursor_margin, 5);
    this.options = options;
    if (link) {
      this.link = $(link);
    }
    this.popup = $(popup);
    this.popup.popup = this;  // Make the popup object a property of the DOM popup element.
    if (options.hidden) {
      this.popup.hide();
    }
    if (options.closebox) {
      this.closeboxes = document.getElementsByClassName(options.closebox, this.popup);
      if (this.popup.hasClassName(options.closebox)) {
        this.closeboxes[this.closeboxes.length] = this.popup;
      }
    }
    else {
      this.closeboxes = [];
    }
    if (options.draghandle) {
      var draghandles = document.getElementsByClassName(options.draghandle, this.popup);
      for (i = 0; i < draghandles.length; i++) {
        new Draggable(this.popup, { handle: draghandles[i] });
      }
      if (this.popup.hasClassName(options.draghandle)) {
        new Draggable(this.popup, { handle: this.popup });
      }
    }
    this.register_events();
  },


  /*
    Event functions
  */

  register_events: function() {
    var trigger_function;
    if (this.is_auto_open()) {
      trigger_function = this.start_show_timer;
      if (this.link) {
        Event.observe(this.link, 'mouseout', this.stop_show_timer.bindAsEventListener(this));
      }
    }
    else {
      trigger_function = this.show;
    }
    if (this.link) {
      Event.observe(this.link, this.options.trigger, trigger_function.bindAsEventListener(this));
    }
    if (!this.options.modal) {
      Event.observe(this.popup, 'click', this.bring_to_front.bindAsEventListener(this));
    }
    if (this.closeboxes.length > 0) {
      for (var i = 0; i < this.closeboxes.length; i++) {
        Event.observe(this.closeboxes[i], 'click', this.hide.bindAsEventListener(this));
      }
    }
    else {
      if (this.link) {
        Event.observe(this.link, 'mouseout', this.start_hide_timer.bindAsEventListener(this));
      }
      Event.observe(this.popup, 'mouseover', this.stop_hide_timer.bindAsEventListener(this));
      Event.observe(this.popup, 'mouseout', this.start_hide_timer.bindAsEventListener(this));
    }
  },

  bring_to_front: function(event) {
    // Bring to front if not already there.
    if (Number(this.popup.style.zIndex) < Popup.zIndex - 1) {
      this.popup.style.zIndex = Popup.zIndex++;
    }
  },

  start_show_timer: function(event) {
    // NOTE: event is bound to this.show but it's state changes between being
    // bound here and arriving at this.show -- specifically, the mouse
    // coordinates are reset to zero). I've no idea why. Anyway, this is the
    // reason for passing the event mouse coordinates as properties of this.
    this.stop_show_timer(event);
    this.mouse_x = Event.pointerX(event);
    this.mouse_y = Event.pointerY(event);
    this.show_timer = setTimeout(this.show.bind(this, event), this.options.show_delay);
  },

  stop_show_timer: function(event) {
    if (this.show_timer) {
      clearTimeout(this.show_timer);
      this.show_timer = null;
    }
  },

  start_hide_timer: function(event) {
    this.stop_hide_timer(event);
    this.hide_timer = setTimeout(this.hide.bind(this, event), this.options.hide_delay);
  },

  stop_hide_timer: function(event) {
    if (this.hide_timer) {
      clearTimeout(this.hide_timer);
      this.hide_timer = null;
    }
  },

  show: function(event) {
    this.stop_show_timer(event);
    this.stop_hide_timer(event);
    if (this.is_open) {
      return;
    }
    if (this.options.modal) {
      this.show_overlay();
    }
    var pos;
    if (!event) {
      // We only arrive here if this.show has been called externally.
      pos = this.get_popup_position();
    }
    else if (this.is_auto_open()) {
      // Because auto-open popups calls this.show indirectly via start_show_timer.
      pos = this.get_popup_position(this.mouse_x, this.mouse_y);
    }
    else {
      pos = this.get_popup_position(Event.pointerX(event), Event.pointerY(event));
    }
    Element.setStyle(this.popup, { top: pos.y, left: pos.x, zIndex: Popup.zIndex++ });
    this.is_open = true;
    switch (this.options.effect) {
      case 'slide':
        Effect.SlideDown(this.popup, {duration: this.options.show_duration});
        break;
      case 'grow':
        Effect.Grow(this.popup, {duration: this.options.show_duration});
        break;
      case 'blind':
        Effect.BlindDown(this.popup, {duration: this.options.show_duration});
        break;
      case 'fade':
      default:
        Effect.Appear(this.popup, {duration: this.options.show_duration});
        break;
    }
  },

  hide: function(event){
    this.is_open = false;
    switch (this.options.effect) {
      case 'slide':
        Effect.SlideUp(this.popup, {duration: this.options.hide_duration});
        break;
      case 'grow':
        Effect.Shrink(this.popup, {duration: this.options.hide_duration});
        break;
      case 'blind':
        Effect.BlindUp(this.popup, {duration: this.options.hide_duration});
        break;
      case 'fade':
      default:
        Effect.Fade(this.popup, {duration: this.options.hide_duration});
        break;
    }
    if (this.options.modal) {
      this.hide_overlay();
    }
  },


  /*
    Helper functions
  */

  // Return the first function argument that is not undefined.
  // Because when zero numerical value are possible you can't use || chains.
  first_value: function() {
    for (var i = 0; i < arguments.length; i++) {
      if (arguments[i] !== undefined) {
        return arguments[i];
      }
    }
    return undefined;
  },

  is_auto_open: function() {
    return this.options.trigger == 'mouseover';
  },

  show_overlay: function() {
    if (!Popup.overlay) {
      var overlay = document.createElement('div');
      overlay.setAttribute('id','popup_overlay');
      overlay.style.display = 'none';
      document.body.appendChild(overlay);
      Popup.overlay = overlay;
      Popup.overlay_levels = [];
    }
    Popup.overlay.style.height = this.get_page_dimensions().height + 'px';
    var z = Popup.zIndex++;
    Popup.overlay.style.zIndex = z;
    Popup.overlay_levels.push(z);
    if ( Popup.overlay_levels.length == 1) { // Opening the first modal popup.
      // Queue the global overlay effect to ensure correct execution order.
      new Effect.Appear(Popup.overlay,
        { duration: this.options.show_duration,
          to: this.options.opacity,
          queue: {position: 'end', scope: 'popup_overlay'}
        });
    }
    else { // There is another modal popup at a lower level so move the overlay forward.
      Popup.overlay.style.zIndex = z;
    }
  },

  hide_overlay: function() {
    Popup.overlay_levels.pop();
    var z = Popup.overlay_levels.pop();
    if (z) { // There is another modal popup at a lower level so move the overlay back.
      Popup.overlay_levels.push(z);
      Popup.overlay.style.zIndex = z;
    }
    else { // The last modal popup is being closed so hide the overlay
      // Queue the global overlay effect to ensure correct execution order.
      new Effect.Fade(Popup.overlay,
        { duration: this.options.hide_duration,
          queue: {position: 'end', scope: 'popup_overlay'}
        });
    }
  },


  /*
    Positioning functions
  */

  // Return the top and left CSS position strings as an {x,y} object that the
  // popup should be shown at.  mouse_x and mouse_y are the mouse x,y coordinates
  // numbers when the popup was triggered.
  get_popup_position: function(mouse_x, mouse_y) {
    var pos;
    switch (this.options.position) {
      case 'auto':
        pos = this.get_auto_position(mouse_x, mouse_y);
        break;
      case 'center':
        pos = this.get_center_position();
        break;
      case 'below':
        pos = this.get_below_position();
        break;
      default:
        // Check for x,y postion format (x and y can be any valid CSS left or
        // top property value).
        if (mo = this.options.position.match(/^\s*([^\s,]+)\s*,\s*([^\s,]+)\s*$/)) {
          pos = {x: mo[1], y: mo[2]};
          // If possible convert to numbers.
          pos.x = Number(pos.x) || pos.x;
          pos.y = Number(pos.y) || pos.y;
        }
        else {
          pos = {x: 0, y: 0};
        }
        break;
    }
    if (typeof pos.x == 'number') {
      pos.x += 'px';
    }
    if (typeof pos.y == 'number') {
      pos.y += 'px';
    }
    return pos;
  },

  get_below_position: function() {
    var pos = Position.cumulativeOffset(this.link);
    return {x: pos[0], y: pos[1] + Element.getHeight(this.link)};
  },

  get_center_position: function() {
    dim = Element.getDimensions(this.popup);
    var popup_width = dim.width;
    var popup_height = dim.height;
    dim = this.get_viewport_dimensions();
    var viewport_width = dim.width;
    var viewport_height = dim.height;

    var x;
    if (popup_width >= viewport_width) {
      x = 0;
    }
    else {
      x = (viewport_width - popup_width)/2;
    }

    var y;
    if (popup_height >= viewport_height) {
      y = 0;
    }
    else {
      y = (viewport_height - popup_height)/2;
    }

    return {x: x, y: y};
  },

  get_auto_position: function(mouse_x, mouse_y) {
    dim = Element.getDimensions(this.popup);
    var popup_width = dim.width;
    var popup_height = dim.height;
    dim = this.get_viewport_dimensions();
    var viewport_width = dim.width;
    var viewport_height = dim.height;

    var available_right = viewport_width - (mouse_x + this.options.cursor_margin);
    var available_left = mouse_x - this.options.cursor_margin;
    var available_top = mouse_y - this.options.cursor_margin;
    var available_bottom = viewport_height - (mouse_x + this.options.cursor_margin);
    var offset = this.options.cursor_margin;
    var x = mouse_x;
    var y = mouse_y;

    if (popup_width >= viewport_width) {
      x = 0;
    }
    else if (popup_width <= available_right) {
      x += offset;
    }
    else if (popup_width <= available_left) {
      x -= popup_width + offset;
    }
    else if (available_right >= available_left) {
      x = viewport_width - popup_width;
    }
    else {
      x = 0;
    }

    if (popup_height >= viewport_height) {
      y = 0;
    }
    else if (popup_height <= available_bottom) {
      y += offset;
    }
    else if (popup_height <= available_top) {
      y -= popup_height + offset;
    }
    else if (available_bottom >= available_top) {
      y = viewport_height - popup_height;
    }
    else {
      y = 0;
    }

    return {x: x, y: y};
  },

  get_viewport_dimensions: function() {
		var dim = this.getPageSize();
    return {width: dim[2], height: dim[3]};
  },

  get_page_dimensions: function() {
		var dim = this.getPageSize();
    return {width: dim[0], height: dim[1]};
  },

  // This function from Lightbox v2.02 by Lokesh Dhakar
  // (http://www.huddletogether.com/projects/lightbox2/).
  //
  // Returns array with page width, height and window width, height
  // Core code from - quirksmode.org
  // Edit for Firefox by pHaez
  //
  getPageSize: function() {
    var xScroll, yScroll;

    if (window.innerHeight && window.scrollMaxY) {
      xScroll = document.body.scrollWidth;
      yScroll = window.innerHeight + window.scrollMaxY;
    } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
      xScroll = document.body.scrollWidth;
      yScroll = document.body.scrollHeight;
    } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
      xScroll = document.body.offsetWidth;
      yScroll = document.body.offsetHeight;
    }

    var windowWidth, windowHeight;
    if (self.innerHeight) {	// all except Explorer
      windowWidth = self.innerWidth;
      windowHeight = self.innerHeight;
    } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
      windowWidth = document.documentElement.clientWidth;
      windowHeight = document.documentElement.clientHeight;
    } else if (document.body) { // other Explorers
      windowWidth = document.body.clientWidth;
      windowHeight = document.body.clientHeight;
    }

    // for small pages with total height less then height of the viewport
    if(yScroll < windowHeight){
      pageHeight = windowHeight;
    } else {
      pageHeight = yScroll;
    }

    // for small pages with total width less then width of the viewport
    if(xScroll < windowWidth){
      pageWidth = windowWidth;
    } else {
      pageWidth = xScroll;
    }

    arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight);
    return arrayPageSize;
  }
}


          

function ismaxlength(obj) {
    var mlength = obj.getAttribute? parseInt(obj.getAttribute("maxlength")) : ""
    if (obj.getAttribute && obj.value.length > mlength)
        obj.value = obj.value.substring(0, mlength)
}

var lastPotterChangedElement;
var lastPotterChangeTimeout;

function initialPotterFormCalculations(input) {
    if (input) {
        processPotterInputChange(input);
    }
}

function processPotterInputChange(element) {
    if(!element || !element.id) return;
    if (lastPotterChangedElement){
        var lastId = lastPotterChangedElement.id;
        var thisId = element.id;
        lastId = lastId.substring(0, lastId.lastIndexOf('|'));
        thisId = thisId.substring(0, thisId.lastIndexOf('|'));
        if( lastId != thisId){
            doProcessPotterInputChange(lastPotterChangedElement);
        }
    }


    lastPotterChangedElement = element;
    if ( lastPotterChangeTimeout ) {
        clearTimeout(lastPotterChangeTimeout);
    }
    lastPotterChangeTimeout = setTimeout('potterCheckChangeTrigger()', 1);
}

function potterCheckChangeTrigger() {
    doProcessPotterInputChange(lastPotterChangedElement);
    lastPotterChangeTimeout = null;
    lastPotterChangedElement = null;
}

function potterClearChangeTrigger() {
    if ( lastPotterChangeTimeout ) {
        clearTimeout(lastPotterChangeTimeout);
    }
    lastPotterChangeTimeout = null;
    lastPotterChangedElement = null;
    return true;
}

function doProcessPotterInputChange(element) {
    if( !element || !element.id || !document.getElementById(element.id) || !element.form || !element.name ){
        return;
    }

    var formulary = element.form;
    var elementName = element.name;

    var _backup_bean = getFormInputValue(formulary, '_f:bean');
    var _backup_prop = getFormInputValue(formulary, '_f:prop');
    var _backup_pAction = getFormInputValue(formulary, 'pAction');
    var _backup_handler = getFormInputValue(formulary, 'mvchandler');
    var _backup_action = getFormInputValue(formulary, 'action');
    /*var _backup_FormAction = formulary.action; */

    prepareFormForHandler(formulary, 'com.polymita.potter.dynForms.processing.formProcessing.FormChangeHandler', 'process');
    setFormInputValue( formulary, 'modifiedFieldName', elementName );
    var formBody = getFormBody(formulary, false);

    setFormInputValue(formulary, '_f:bean', _backup_bean);
    setFormInputValue(formulary, '_f:prop', _backup_prop);
    setFormInputValue(formulary, 'pAction', _backup_pAction);
    setFormInputValue(formulary, 'mvchandler', _backup_handler);
    setFormInputValue(formulary, 'action', _backup_action);
    /*formulary.action = _backup_FormAction; */

    var url = "Controller";
    var formProcessor = new Object();
    formProcessor.onresponse = function() {
    var readyState, status;
    try{
        readyState = formProcessor.formRequest.readyState;
        if (readyState == 4)
            status = formProcessor.formRequest.status;
    }
    catch(e){
    }
    if (readyState == 4) {
        // only if "OK"
        if (status == 200) {
                var xmlResponse = formProcessor.formRequest.responseXML;
                //alert("Received response "+formProcessor.formRequest.responseText);
                if (xmlResponse != null) {
                    //alert("Received XML response "+xmlResponse);
                    var setValues = xmlResponse.documentElement.getElementsByTagName('setvalue');
                    //alert("setValues="+setValues+" with size "+ (setValues?setValues.length:0) );
                    for (i = 0; i < setValues.length; i++) {
                        var fieldId = setValues[i].getAttribute("name");
                        var fieldValue = setValues[i].getAttribute("value");
                        /*alert("Putting field "+fieldId+" = "+fieldValue);*/
                        if (formulary.elements[fieldId])
                            formulary.elements[fieldId].value = fieldValue;
                    }
                    var setListValues = xmlResponse.documentElement.getElementsByTagName('setListValues');
                    //alert("setListValues ="+setListValues+" with size "+ (setListValues?setListValues.length:0) );
                    for (i = 0; i < setListValues.length; i++) {
                        var fieldId = setListValues[i].getAttribute("name");
                        var formField =  formulary.elements[fieldId];
                        if ( formField && formField.nodeName.toLowerCase() == 'select') {
                            
                            var optionsToAdd = setListValues[i].getElementsByTagName("option");
                            if(optionsToAdd.length>0){
                                
                                if (formField.multiple) formField.options.length=0;
                                else formField.options.length=1;

                                formField.disabled = false;
                                for(j = 0; j<optionsToAdd.length; j++){
                                    var optionToAdd = optionsToAdd[j];
                                    var option = new Option(optionToAdd.getAttribute("text"), optionToAdd.getAttribute("value") );
                                    if ( "true" == optionToAdd.getAttribute("selected") ) option.selected = true;
                                    formField.options[formField.options.length]=option;
                                    
                                }
                            } else {
                                if (formField.multiple) formField.options.length=0;
                                formField.selectedIndex = 0;
                                formField.disabled = true;
                            }
                        }
                    }

                }
            }
        }
    }

    if (window.XMLHttpRequest) {
        formProcessor.formRequest = new XMLHttpRequest();
    }
    else if (window.ActiveXObject) {
        formProcessor.formRequest = new ActiveXObject('Microsoft.XMLHTTP');
    }
    if (formProcessor.formRequest != null) {
        formProcessor.formRequest.onreadystatechange = formProcessor.onresponse;
        if (formBody) {
            formProcessor.formRequest.open('POST', url, true);
            formProcessor.formRequest.setRequestHeader("Content-Type", "multipart/form-data; charset=UTF-8; boundary=" + boundary);
        } else {
            formProcessor.formRequest.open('GET', url, true);
        }
        if (ajaxAlertsEnabled)
            alert("Sending body:\n" + formBody);
        formProcessor.formRequest.send(formBody);
        return false;
    }
}

function potterReplaceTextArea(idToReplace, size, height, lang, imgURL, lnkURL){
    var sBasePath = '/Clinic_1.0.00/collage/fckeditor/';
    var oFCKeditor = new FCKeditor(idToReplace, size,height) ;
    oFCKeditor.BasePath = sBasePath;
    oFCKeditor.Config['CustomConfigurationsPath'] = '/Clinic_1.0.00/collage/potter/fieldHandlers/HTMLTextArea/fckConfig.js';
    var width = size;
    if (width < 120)
        oFCKeditor.ToolbarSet = 'potterToolbar0';
    else if (width < 170)
        oFCKeditor.ToolbarSet = 'potterToolbar1';
    else if (width < 240)
        oFCKeditor.ToolbarSet = 'potterToolbar2';
    else if (width < 310)
        oFCKeditor.ToolbarSet = 'potterToolbar3';
    else if (width < 500)
        oFCKeditor.ToolbarSet = 'potterToolbar4';
    else
        oFCKeditor.ToolbarSet = 'potterToolbar5';

    oFCKeditor.Config["AutoDetectLanguage"] = false;
    oFCKeditor.Config["LinkBrowserURL"] = lnkURL.replace(/&amp;/g,'&');
    oFCKeditor.Config["ImageBrowserURL"] = imgURL.replace(/&amp;/g,'&');
    oFCKeditor.Config["LinkBrowserWindowWidth"] = '550';
    oFCKeditor.Config["LinkBrowserWindowHeight"] = '500';
    oFCKeditor.Config["ImageBrowserWindowWidth"] = '550';
    oFCKeditor.Config["ImageBrowserWindowHeight"] = '500';


    oFCKeditor.Config["DefaultLanguage"] = lang;

    oFCKeditor.ReplaceTextarea();

    return oFCKeditor;
}

function getDefinedCssClasses(){
    var result = new Array();
    if (document.styleSheets) {
        for (var i=0; i<document.styleSheets.length; i++) {
          var styleSheet=document.styleSheets[i];
            var rules;
            if (styleSheet.cssRules) {
              rules = styleSheet.cssRules;
            } else {
              rules = styleSheet.rules;
            }
           for(j=0; j<rules.length; j++){
               cssRule = rules[j];
               if(cssRule.selectorText.indexOf('.')==0 && cssRule.selectorText.indexOf(':')==-1 )
                  result.push(cssRule.selectorText.substring(1));
           }
        }
    }
    return result;
}


function disableFormChecks(form) {
    var i;
    for (i=0; i<form.elements.length; i++) {
        if (form.elements[i].type == "checkbox") form.elements[i].disabled="disabled";
    }
}

function removeNotUploadedFile(fieldName, id) {
    var tdContainer = document.getElementById("td_" + fieldName + "_container");
    var input = document.getElementById(fieldName + "_" + id);
    tdContainer.removeChild(input);
    var showTable = document.getElementById(fieldName+"_showTable");
    var i;
    for (i=0; i<showTable.rows.length; i++) {
        if (showTable.rows[i].id == "tr_"+fieldName+"_"+id) {
            showTable.deleteRow(i);
            break;
        }
    }
    return false;
}

function setVisible(fieldName, input) {
    var button = document.getElementById(fieldName + "_create");
    if (input.value == "") {
        button.style.display="none";
    } else {
        button.style.display="block";
        var fileName = input.value;
        var index = fileName.lastIndexOf("/");
        if (index == -1) index = fileName.lastIndexOf("\\");
        fileName = fileName.substring(index+1, fileName.length);
        var docs = document.getElementById(fieldName + "_totalDox");
        createShowNode(fieldName, fileName, docs.value);
        input.style.display="none";
    }
}

function createShowNode(fieldName, fileName, oldId) {
    var showTable = document.getElementById(fieldName + "_showTable");

    var rows = showTable.rows.length;
    var tr = showTable.insertRow(rows);
    tr.id = "tr_" + fieldName + "_" + oldId;

    var tdDelete = document.createElement("td");
    var image = document.createElement("img");
    image.setAttribute("src","/Clinic_1.0.00/collage/images/potter/actions/delete.gif");
    image.setAttribute("border","0");
    image.setAttribute("title", "Borrar")
    var anchor = document.createElement("a")
    anchor.href = "#";
    anchor.title = "Borrar";
    anchor.appendChild(image);
    anchor.setAttribute("onclick", "return removeNotUploadedFile('" + fieldName + "'," + oldId + ");");
    anchor.onclick = function () {
        removeNotUploadedFile(fieldName, oldId);
        return false;
    }
    tdDelete.appendChild(anchor);

    var tdImage = document.createElement("td");
    var thumbnail = document.createElement("img");
    thumbnail.setAttribute("border","0");

    thumbnail.setAttribute("src","/Clinic_1.0.00/collage/images/potter/fileTypeIcons/16x16/file.gif");
    tdImage.appendChild(thumbnail);
    var tdName = document.createElement("td");
    tdName.appendChild(document.createTextNode(fileName));
    tdName.style.whiteSpace="nowrap";

    var tdStatus = document.createElement("td");
    tdStatus.style.whiteSpace="nowrap";
    tdStatus.appendChild(document.createTextNode("Pendiente de subir"));

    tr.appendChild(tdDelete);
    tr.appendChild(tdImage);
    tr.appendChild(tdName);
    tr.appendChild(tdStatus);
}

function createNewFile(fieldName) {
    var docs = document.getElementById(fieldName + "_totalDox");
    var oldId = docs.value;

    var doc = document.getElementById(fieldName + "_" + oldId);
    if (doc == null || doc.value != "") {
        docs.value++;
        var newId = docs.value;
        var theTd = document.getElementById("td_" + fieldName + "_container");
        var newInput = document.getElementById(fieldName + "_notValid").cloneNode(true);
        newInput.id = fieldName + "_" + newId;
        newInput.name = fieldName + "_" + newId;
        newInput.style.display="block";
        theTd.appendChild(newInput);
        document.getElementById(fieldName + "_create").style.display="none";
    }
}



      
/*
Javascript name: My Date Time Picker
Date created: 16-Nov-2003 23:19
Scripter: TengYong Ng
Website: http://www.rainforestnet.com
Copyright (c) 2003 TengYong Ng
FileName: DateTimePicker.js
Version: 0.8
Contact: contact@rainforestnet.com
Note: Permission given to use this script in ANY kind of applications if
header lines are left unchanged.
  */

/*Global variables*/
var winCal;
var dtToday = new Date();
var Cal;
var docCal;
var MonthName = ["January", "February", "March", "April", "May", "June","July",
"August", "September", "October", "November", "December"];
var WeekDayName = ["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"];
var WeekDayOffset = 1;
/*0-> week starts on Sunday, 1-> on monday ...*/
var exDateTime;
/*Existing Date and Time*/

/*Configurable parameters*/
var cnTop = "200";
/*top coordinate of calendar window.*/
var cnLeft = "500";

var calendarWindowFeatures =
"toolbar=0,status=0,menubar=0,fullscreen=no,width=250,height=245,resizable=0,top=" + cnTop + ",left=" + cnLeft;

/*left coordinate of calendar window */
var WindowTitle = "DateTime Picker";
/*Date Time Picker title.*/
var WeekChar = 2;
/*number of character for week day. if 2 then Mo,Tu,We. if 3 then Mon,Tue,Wed. */
var CellWidth = 25;
/*Width of day cell. */
var DateSeparator = "-";
/*Date Separator, you can change it to "/" if you want. */
var TimeMode = 24;
/*default TimeMode value. 12 or 24 */

var ShowLongMonth = true;
/*Show long month name in Calendar header. example: "January".*/
var ShowMonthYear = true;
/*Show Month and Year in Calendar header.*/
var MonthYearColor = "#cc0033";
/*Font Color of Month and Year in Calendar header.*/
var WeekHeadColor = "#0099CC";
/*Background Color in Week header.*/
var SundayColor = "background:#ff4500";
/*Background color of Sunday.*/
var SaturdayColor = "background:orange";
/*Background color of Saturday.*/
var WeekDayColor = "background:white";
/*Background color of weekdays.*/
var FontColor = "blue";
/*color of font in Calendar day cell.*/
var TodayColor = "background:#f0e68c";
/*Background color of today.*/
var SelDateColor = "background:#00008B";
/*Backgrond color of selected date in textbox.*/
var YrSelColor = "#cc0033";
/*color of font of Year selector.*/
var ThemeBg = "";
/*Background image of Calendar window. */
var InputsStyle = "Border-Width:1px; Border-Color:#cccccc; Border-Style:solid; Font-Weight: normal; Font-Size: 10px;"+
"Background-Color: #ffffff; Color: #000000; Height:20;";
/*Style for inputs */

/*end Configurable parameters
end Global variable   */

function NewCal(pCtrl, pFormat, pShowTime, pTimeMode)
{
Cal = new Calendar(dtToday);
if ((pShowTime != null) && (pShowTime))
{
Cal.ShowTime = true;
if ((pTimeMode != null) && ((pTimeMode == '12') || (pTimeMode == '24')))
{
TimeMode = pTimeMode;
}
}
if (pCtrl != null)
Cal.Ctrl = pCtrl;
if (pFormat != null)
Cal.Format = pFormat.toUpperCase();

exDateTime = document.getElementById(pCtrl).value;
if (exDateTime != "")/*Parse Date String */
{
var Sp1;
/*Index of Date Separator 1 */
var Sp2;
/*Index of Date Separator 2 */
var tSp1;
/*Index of Time Separator 1  */
var tSp2;
/*Index of Time Separator 2  */
var strMonth;
var strDate;
var strYear;
var intMonth;
var YearPattern;
var strHour;
var strMinute;
var strSecond;
/*parse month*/
Sp1 = exDateTime.indexOf(DateSeparator, 0)
Sp2 = exDateTime.indexOf(DateSeparator, (parseInt(Sp1) + 1));

if ((Cal.Format.toUpperCase() == "DDMMYYYY") || (Cal.Format.toUpperCase() == "DDMMMYYYY"))
{
strMonth = exDateTime.substring(Sp1 + 1, Sp2);
strDate = exDateTime.substring(0, Sp1);
}
else if ((Cal.Format.toUpperCase() == "MMDDYYYY") || (Cal.Format.toUpperCase() == "MMMDDYYYY"))
{
strMonth = exDateTime.substring(0, Sp1);
strDate = exDateTime.substring(Sp1 + 1, Sp2);
}
if (isNaN(strMonth))
intMonth = Cal.GetMonthIndex(strMonth);
else
intMonth = parseInt(strMonth, 10) - 1;
if ((parseInt(intMonth, 10) >= 0) && (parseInt(intMonth, 10) <12))
Cal.Month = intMonth;
/*end parse month */
/*parse Date  */
if ((parseInt(strDate, 10) <= Cal.GetMonDays()) && (parseInt(strDate, 10) >= 1))
Cal.Date = strDate;
/*end parse Date */
/*parse year */
strYear = exDateTime.substring(Sp2 + 1, Sp2 + 5);
YearPattern = /^\d{4}$/;
if (YearPattern.test(strYear))
Cal.Year = parseInt(strYear, 10);
/*end parse year */
/*parse time   */
if (Cal.ShowTime == true)
{
tSp1 = exDateTime.indexOf(":", 0)
tSp2 = exDateTime.indexOf(":", (parseInt(tSp1) + 1));
strHour = exDateTime.substring(tSp1, (tSp1) - 2);
Cal.SetHour(strHour);
strMinute = exDateTime.substring(tSp1 + 1, tSp2);
Cal.SetMinute(strMinute);
strSecond = exDateTime.substring(tSp2 + 1, tSp2 + 3);
Cal.SetSecond(strSecond);
}
}
winCal = window.open("", "DateTimePicker", calendarWindowFeatures);
docCal = winCal.document;
/* Doesn't work fine: winCal.onblur = function(){this.close();} */
winCal.focus();
RenderCal();
}

function RenderCal()
{
var vCalHeader;
var vCalData;
var vCalTime;
var i;
var j;
var SelectStr;
var vDayCount = 0;
var vFirstDay;

docCal.open();
docCal.writeln("<html><head><title>" + WindowTitle + "</title>");
docCal.writeln("<link rel=\"stylesheet\" href='/Clinic_1.0.00/collage/skins/default/styles/default.css' "+
" type=\"text/css\">");
docCal.writeln("<link rel=\"stylesheet\" href='/Clinic_1.0.00/collage/skins/default/styles/portlet.css' "+
" type=\"text/css\">");
docCal.writeln("<script>var winMain=window.opener;</script>");
docCal.writeln("</head><body background='" + ThemeBg + "' link=" + FontColor + " vlink=" + FontColor + "><form "+
" name='Calendar'>");

vCalHeader = "<table border=0 cellpadding=1 cellspacing=1 width='100%' align=\"center\" valign=\"top\">\n";
/*Month Selector*/
vCalHeader += "<tr>\n<td colspan='7'><table border=0 width='100%' cellpadding=0 cellspacing=0><tr><td align='left'>\n";
vCalHeader += "<select style=\"" + InputsStyle + "\" name=\"MonthSelector\"  "+
" onChange=\"javascript:winMain.Cal.SwitchMth(this.selectedIndex);winMain.RenderCal();\">\n";
for (i = 0; i < 12; i++)
{
if (i == Cal.Month)
SelectStr = "Selected";
else
SelectStr = "";
vCalHeader += "<option " + SelectStr + " value >" + MonthName[i] + "\n";
}
vCalHeader += "</select></td>";
/*Year selector*/
vCalHeader += "\n<td align='right'><a href=\"javascript:winMain.Cal.DecYear();winMain.RenderCal()\"><b><font color=\"" +
YrSelColor + "\"><</font></b></a><font face=\"Verdana\" color=\"" + YrSelColor + "\" size=2><b> " + Cal.Year +
"</b></font><a href=\"javascript:winMain.Cal.IncYear();winMain.RenderCal()\"><b><font color=\"" + YrSelColor +
"\">></font></b></a></td></tr></table></td>\n";

vCalHeader += "</tr>";
/*Calendar header shows Month and Year */
if (ShowMonthYear)
vCalHeader += "<tr><td colspan='7'><font face='Verdana' size='2' align='center' color='" + MonthYearColor + "'><b>" +
Cal.GetMonthName(ShowLongMonth) + " " + Cal.Year + "</b></font></td></tr>\n";
/*Week day header */
vCalHeader += "<tr bgcolor=" + WeekHeadColor + ">";
for (i = 0; i <7; i++)
{
vCalHeader += "<td align='center'><font face='Verdana' size='2'>" + WeekDayName[i].substr(0, WeekChar) + "</font></td>";
}
vCalHeader += "</tr>";
docCal.write(vCalHeader);

/*Calendar detail */
CalDate = new Date(Cal.Year, Cal.Month);
CalDate.setDate(1);
vFirstDay = CalDate.getDay() - WeekDayOffset;
vFirstDay = vFirstDay < 0 ? vFirstDay +7: vFirstDay;
vCalData = "<tr>";
for (i = 0; i <vFirstDay; i++)
{
vCalData = vCalData + GenCell();
vDayCount = vDayCount + 1;
}
for (j = 1; j <= Cal.GetMonDays(); j++)
{
var strCell;
vDayCount = vDayCount + 1;
if ((j == dtToday.getDate()) && (Cal.Month == dtToday.getMonth()) && (Cal.Year == dtToday.getFullYear()))
strCell = GenCell(j, true, TodayColor);/*Highlight today's date*/
else
{
if (j == Cal.Date)
{
strCell = GenCell(j, true, SelDateColor);
}
else
{
if (vDayCount % 7 == (7 - WeekDayOffset) % 7) {
strCell = GenCell(j, false, SaturdayColor);
}
else if ( (vDayCount + 6) % 7 == (7-WeekDayOffset) %7) {
strCell = GenCell(j, false, SundayColor);
}
else {
strCell = GenCell(j, null, WeekDayColor);
}
}
}
vCalData = vCalData + strCell;

if ((vDayCount % 7 == 0) && (j <Cal.GetMonDays()))
{
vCalData = vCalData + "</tr>\n<tr>";
}
}
docCal.writeln(vCalData);
/*Time picker */
if (Cal.ShowTime)
{
var showHour;
showHour = Cal.getShowHour();
vCalTime = "<tr>\n<td colspan='7' align='center'>";
vCalTime += "<input style=\"" + InputsStyle + "\" type='text' name='hour' maxlength=2 size=1 style=\"WIDTH: 22px\" "+
" value=" + showHour + " onchange=\"javascript:winMain.Cal.SetHour(this.value)\">";
vCalTime += " : ";
vCalTime += "<input style=\"" + InputsStyle + "\" type='text' name='minute' maxlength=2 size=1 style=\"WIDTH: 22px\" "+
" value=" + Cal.Minutes + " onchange=\"javascript:winMain.Cal.SetMinute(this.value)\">";
vCalTime += " : ";
vCalTime += "<input style=\"" + InputsStyle + "\" type='text' name='second' maxlength=2 size=1 style=\"WIDTH: 22px\" "+
" value=" + Cal.Seconds + " onchange=\"javascript:winMain.Cal.SetSecond(this.value)\">";
if (TimeMode == 12)
{
var SelectAm = (parseInt(Cal.Hours, 10) < 12)? "Selected":"";
var SelectPm = (parseInt(Cal.Hours, 10) >= 12)? "Selected":"";

vCalTime += "<select name=\"ampm\" "+
" onchange=\"javascript:winMain.Cal.SetAmPm(this.options[this.selectedIndex].value);\">";
vCalTime += "<option " + SelectAm + " value=\"AM\">AM</option>";
vCalTime += "<option " + SelectPm + " value=\"PM\">PM<option>";
vCalTime += "</select>";
}
vCalTime += "\n</td>\n</tr>";
docCal.write(vCalTime);
}
/*end time picker*/
docCal.writeln("\n</table>");
docCal.writeln("</form></body></html>");
docCal.close();
}

function GenCell(pValue, pHighLight, pStyle) /*Generate table cell with value */
{
var PValue;
var PCellStr;
var vStyle;
var vHLstr1;
/*HighLight string*/
var vHlstr2;
var vTimeStr;

if (pValue == null)
PValue = "";
else
PValue = pValue;

if (pStyle != null)
vStyle = "style=\"" + pStyle + "\"";
else
vStyle = "";
if ((pHighLight != null) && (pHighLight))
{
vHLstr1 = "color='red'><b>";
vHLstr2 = "</b>";
}
else
{
vHLstr1 = ">";
vHLstr2 = "";
}

if (Cal.ShowTime)
{
vTimeStr = "winMain.document.getElementById('" + Cal.Ctrl + "').value+=' '+" + "winMain.Cal.getShowHour()" + "+':'+" +
"winMain.Cal.Minutes" + "+':'+" + "winMain.Cal.Seconds";
if (TimeMode == 12)
vTimeStr += "+' '+winMain.Cal.AMorPM";
}
else
vTimeStr = "";
PCellStr = "<td " + vStyle + " width=" + CellWidth + " align='center'><font face='verdana' size='2'" + vHLstr1 +
"<a href=\"javascript:setTimeout('window.close();',10);winMain.document.getElementById('" + Cal.Ctrl + "').value='" +
Cal.FormatDate(PValue) + "';" +
vTimeStr + ";if(winMain.document.getElementById('" + Cal.Ctrl + "').onchange){"+
"winMain.document.getElementById('" + Cal.Ctrl + "').onchange()};window.close();\">" + PValue + "</a>" +
vHLstr2 + "</font></td>";
/*if(pHighLight) alert("Generado "+PCellStr); */
return PCellStr;
}

function Calendar(pDate, pCtrl)
{
/*Properties*/
this.Date = pDate.getDate();
/*selected date */
this.Month = pDate.getMonth();
/*selected month number*/
this.Year = pDate.getFullYear();
/*selected year in 4 digits */
this.Hours = pDate.getHours();

if (pDate.getMinutes() <10)
this.Minutes = "0" + pDate.getMinutes();
else
this.Minutes = pDate.getMinutes();

if (pDate.getSeconds() <10)
this.Seconds = "0" + pDate.getSeconds();
else
this.Seconds = pDate.getSeconds();

this.MyWindow = winCal;
this.Ctrl = pCtrl;
this.Format = "ddMMyyyy";
this.Separator = DateSeparator;
this.ShowTime = false;
if (pDate.getHours() <12)
this.AMorPM = "AM";
else
this.AMorPM = "PM";
}

function GetMonthIndex(shortMonthName)
{
for (i = 0; i <12; i++)
{
if (MonthName[i].substring(0, 3).toUpperCase() == shortMonthName.toUpperCase())
{
return i;
}
}
}
Calendar.prototype.GetMonthIndex = GetMonthIndex;

function IncYear()
{
Cal.Year++;
}
Calendar.prototype.IncYear = IncYear;

function DecYear()
{
Cal.Year--;
}
Calendar.prototype.DecYear = DecYear;

function SwitchMth(intMth)
{
Cal.Month = intMth;
}
Calendar.prototype.SwitchMth = SwitchMth;

function SetHour(intHour)
{
var MaxHour;
var MinHour;
if (TimeMode == 24)
{
MaxHour = 23;
MinHour = 0
}
else if (TimeMode == 12)
{
MaxHour = 12;
MinHour = 1
}
else
alert("TimeMode can only be 12 or 24");
var HourExp = new RegExp("^\\d\\d$");
if (HourExp.test(intHour) && (parseInt(intHour, 10) <= MaxHour) && (parseInt(intHour, 10) >= MinHour))
{
if ((TimeMode == 12) && (Cal.AMorPM == "PM"))
{
if (parseInt(intHour, 10) == 12)
Cal.Hours = 12;
else
Cal.Hours = parseInt(intHour, 10) + 12;
}
else if ((TimeMode == 12) && (Cal.AMorPM == "AM"))
{
if (intHour == 12)
intHour -= 12;
Cal.Hours = parseInt(intHour, 10);
}
else if (TimeMode == 24)
Cal.Hours = parseInt(intHour, 10);
}
}
Calendar.prototype.SetHour = SetHour;

function SetMinute(intMin)
{
var MinExp = new RegExp("^\\d\\d$");
if (MinExp.test(intMin) && (intMin <60))
Cal.Minutes = intMin;
}
Calendar.prototype.SetMinute = SetMinute;

function SetSecond(intSec)
{
var SecExp = new RegExp("^\\d\\d$");
if (SecExp.test(intSec) && (intSec <60))
Cal.Seconds = intSec;
}
Calendar.prototype.SetSecond = SetSecond;

function SetAmPm(pvalue)
{
this.AMorPM = pvalue;
if (pvalue == "PM")
{
this.Hours = (parseInt(this.Hours, 10)) + 12;
if (this.Hours == 24)
this.Hours = 12;
}
else if (pvalue == "AM")
this.Hours -= 12;
}
Calendar.prototype.SetAmPm = SetAmPm;

function getShowHour()
{
var finalHour;
if (TimeMode == 12)
{
if (parseInt(this.Hours, 10) == 0)
{
this.AMorPM = "AM";
finalHour = parseInt(this.Hours, 10) + 12;
}
else if (parseInt(this.Hours, 10) == 12)
{
this.AMorPM = "PM";
finalHour = 12;
}
else if (this.Hours > 12)
{
this.AMorPM = "PM";
if ((this.Hours - 12) <10)
finalHour = "0" + ((parseInt(this.Hours, 10)) - 12);
else
finalHour = parseInt(this.Hours, 10) - 12;
}
else
{
this.AMorPM = "AM";
if (this.Hours <10)
finalHour = "0" + parseInt(this.Hours, 10);
else
finalHour = this.Hours;
}
}
else if (TimeMode == 24)
{
if (this.Hours <10)
finalHour = "0" + parseInt(this.Hours, 10);
else
finalHour = this.Hours;
}
return finalHour;
}
Calendar.prototype.getShowHour = getShowHour;

function GetMonthName(IsLong)
{
var Month = MonthName[this.Month];
if (IsLong)
return Month;
else
return Month.substr(0, 3);
}
Calendar.prototype.GetMonthName = GetMonthName;

function GetMonDays() /*Get number of days in a month */
{
var DaysInMonth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
if (this.IsLeapYear())
{
DaysInMonth[1] = 29;
}
return DaysInMonth[this.Month];
}
Calendar.prototype.GetMonDays = GetMonDays;

function IsLeapYear()
{
if ((this.Year % 4) == 0)
{
if ((this.Year % 100 == 0) && (this.Year % 400) != 0)
{
return false;
}
else
{
return true;
}
}
else
{
return false;
}
}
Calendar.prototype.IsLeapYear = IsLeapYear;

function FormatDate(pDate)
{
if (this.Format.toUpperCase() == "DDMMYYYY")
return (pDate + DateSeparator + (this.Month + 1) + DateSeparator + this.Year);
else if (this.Format.toUpperCase() == "DDMMMYYYY")
return (pDate + DateSeparator + this.GetMonthName(false) + DateSeparator + this.Year);
else if (this.Format.toUpperCase() == "MMDDYYYY")
return ((this.Month + 1) + DateSeparator + pDate + DateSeparator + this.Year);
else if (this.Format.toUpperCase() == "MMMDDYYYY")
return (this.GetMonthName(false) + DateSeparator + pDate + DateSeparator + this.Year);
}
Calendar.prototype.FormatDate = FormatDate;










    MonthName = [
             "enero"
             , "febrero"
             , "marzo"
             , "abril"
             , "mayo"
             , "junio"
             , "julio"
             , "agosto"
             , "septiembre"
             , "octubre"
             , "noviembre"
             , "diciembre"
            ];

    WeekDayName = [
             "lun"
             , "mar"
             , "mié"
             , "jue"
             , "vie"
             , "sáb"
             , "dom"
            ];
    WeekDayOffset = 1;