// JavaScript Document

//POP UPS

    function popSmall(url)
    {
        x = window.open(url,"details","scrollbars=no,screenX=0,left=0,screenY=0,top=0,width=320,height=438,resizable=no");
    }
function popLarge(url)
    {
        x = window.open(url,"details","scrollbars=yes,screenX=0,left=0,screenY=0,top=0,width=600,height=500,resizable=no");
    }
function popXLarge(url)
    {
        x = window.open(url,"details","scrollbars=yes,screenX=0,left=0,screenY=0,top=0,width=760,height=550,resizable=no");
    }
function popPR(url)
    {
        x = window.open(url,"details","scrollbars=yes,screenX=0,left=0,screenY=0,top=0,width=555,height=675,resizable=no");
    }
function popProdBlock(url)
        {
            x = window.open(url,"details","scrollbars=no,screenX=0,left=0,screenY=0,top=0,width=450,height=450,resizable=no");
    }
function popThanks(url)
    {
        x = window.open(url,"details","scrollbars=yes,screenX=0,left=0,screenY=0,top=0,width=616,height=400,resizable=no");
    }
	function popText(url)
    {
        x = window.open(url,"details","scrollbars=yes,screenX=0,left=0,screenY=0,top=0,width=501,height=318,resizable=no");
    }
function popItCustom(url, width, height)
    {
        x = window.open(url,"details","scrollbars=yes,left=0,top=0,width=" + width + ",height=" + height + ",resizable=yes");
    }
 function popItTop(url)
    {
        x = window.open(url,"details","scrollbars=yes,screenX=0,left=0,screenY=0,top=0,width=" + width + ",height=" + height + ",resizable=no");
    }
function openBrWindow(theURL) 
{ 
var winName = "Popup";
var features = "scrollbars=yes,width=400,height=300";

  window.open(theURL,winName,features);
}

function close_window() {
    window.close();
}
// END

// Local Nav Expand & Collapse 

function toggleFirstSection(divObj1,divObj2) {

state = document.getElementById(divObj2).style.display;

if(state != null && state == "none")
 {
 document.getElementById(divObj1).className = "firstSectionOpen";
 document.getElementById(divObj2).style.display = "block";
  } 
  else 
  {
	document.getElementById(divObj1).className = "firstSectionClose";
	document.getElementById(divObj2).style.display = "none";
  }
}

function toggleSecondSection(divObj1,divObj2) {

state = document.getElementById(divObj2).style.display;
 
 if(state != null && state == "none") 
 {
  document.getElementById(divObj1).className = "secondSectionOpen";
  document.getElementById(divObj2).style.display = "block";
  } 
  else 
  {
   document.getElementById(divObj1).className = "secondSectionClose";
   document.getElementById(divObj2).style.display = "none";
  }
}

function toggleThirdSection(divObj1,divObj2) {

state = document.getElementById(divObj2).style.display;
 
 if(state != null && state == "none") 
 {
  document.getElementById(divObj1).className = "thirdSectionOpen";
  document.getElementById(divObj2).style.display = "block";
  } 
  else 
  {
   document.getElementById(divObj1).className = "thirdSectionClose";
   document.getElementById(divObj2).style.display = "none";
  }
}
//END

//Table Data Sort

addEvent(window, "load", sortables_init);

var SORT_COLUMN_INDEX;

function sortables_init() {
    // Find all tables with class sortable and make them sortable
    if (!document.getElementsByTagName) return;
    tbls = document.getElementsByTagName("table");
    for (ti=0;ti<tbls.length;ti++) {
        thisTbl = tbls[ti];
        if (((' '+thisTbl.className+' ').indexOf("sortable") != -1) && (thisTbl.id)) {
            //initTable(thisTbl.id);
            ts_makeSortable(thisTbl);
        }
    }
}

function ts_makeSortable(table) {
    if (table.rows && table.rows.length > 0) {
        var firstRow = table.rows[0];
    }
    if (!firstRow) return;
    
    // We have a first row: assume it's the header, and make its contents clickable links
    for (var i=0;i<firstRow.cells.length;i++) {
        var cell = firstRow.cells[i];
        var txt = ts_getInnerText(cell);
        cell.innerHTML = '<a href="#" class="sortheader" onclick="ts_resortTable(this);return false;">'+txt+'<span class="sortarrow"></span></a>';
    }
}

function ts_getInnerText(el) {
	if (typeof el == "string") return el;
	if (typeof el == "undefined") { return el };
	if (el.innerText) return el.innerText;	//Not needed but it is faster
	var str = "";
	
	var cs = el.childNodes;
	var l = cs.length;
	for (var i = 0; i < l; i++) {
		switch (cs[i].nodeType) {
			case 1: //ELEMENT_NODE
				str += ts_getInnerText(cs[i]);
				break;
			case 3:	//TEXT_NODE
				str += cs[i].nodeValue;
				break;
		}
	}
	return str;
}

function ts_resortTable(lnk) {
    // get the span
    var span;
    for (var ci=0;ci<lnk.childNodes.length;ci++) {
        if (lnk.childNodes[ci].tagName && lnk.childNodes[ci].tagName.toLowerCase() == 'span') span = lnk.childNodes[ci];
    }
    var spantext = ts_getInnerText(span);
    var td = lnk.parentNode;
    var column = td.cellIndex;
    var table = getParent(td,'TABLE');
    
    // Work out a type for the column
    if (table.rows.length <= 1) return;
    var itm = ts_getInnerText(table.rows[1].cells[column]);
    sortfn = ts_sort_caseinsensitive;
    if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d\d\d$/)) sortfn = ts_sort_date;
    if (itm.match(/^\d\d[\/-]\d\d[\/-]\d\d$/)) sortfn = ts_sort_date;
    if (itm.match(/^[$]/)) sortfn = ts_sort_currency;
    if (itm.match(/^[\d\.]+$/)) sortfn = ts_sort_numeric;
    SORT_COLUMN_INDEX = column;
    var firstRow = new Array();
    var newRows = new Array();
    for (i=0;i<table.rows[0].length;i++) { firstRow[i] = table.rows[0][i]; }
    for (j=1;j<table.rows.length;j++) { newRows[j-1] = table.rows[j]; }

    newRows.sort(sortfn);

    if (span.getAttribute("sortdir") == 'down') {
        newRows.reverse();
        span.setAttribute('sortdir','up');
    } else {
       span.setAttribute('sortdir','down');
    }
    
    // We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
    // don't do sortbottom rows
    for (i=0;i<newRows.length;i++) { if (!newRows[i].className || (newRows[i].className && (newRows[i].className.indexOf('sortbottom') == -1))) table.tBodies[0].appendChild(newRows[i]);}
    // do sortbottom rows only
    for (i=0;i<newRows.length;i++) { if (newRows[i].className && (newRows[i].className.indexOf('sortbottom') != -1)) table.tBodies[0].appendChild(newRows[i]);}
    
    // Delete any other arrows there may be showing
    var allspans = document.getElementsByTagName("span");
    for (var ci=0;ci<allspans.length;ci++) {
        if (allspans[ci].className == 'sortarrow') {
            if (getParent(allspans[ci],"table") == getParent(lnk,"table")) { // in the same table as us?
                allspans[ci].innerHTML = '';
            }
        }
    }
        
    
}

function getParent(el, pTagName) {
	if (el == null) return null;
	else if (el.nodeType == 1 && el.tagName.toLowerCase() == pTagName.toLowerCase())	// Gecko bug, supposed to be uppercase
		return el;
	else
		return getParent(el.parentNode, pTagName);
}
function ts_sort_date(a,b) {
    // y2k notes: two digit years less than 50 are treated as 20XX, greater than 50 are treated as 19XX
    aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
    bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
    if (aa.length == 10) {
        dt1 = aa.substr(6,4)+aa.substr(3,2)+aa.substr(0,2);
    } else {
        yr = aa.substr(6,2);
        if (parseInt(yr) < 50) { yr = '20'+yr; } else { yr = '19'+yr; }
        dt1 = yr+aa.substr(3,2)+aa.substr(0,2);
    }
    if (bb.length == 10) {
        dt2 = bb.substr(6,4)+bb.substr(3,2)+bb.substr(0,2);
    } else {
        yr = bb.substr(6,2);
        if (parseInt(yr) < 50) { yr = '20'+yr; } else { yr = '19'+yr; }
        dt2 = yr+bb.substr(3,2)+bb.substr(0,2);
    }
    if (dt1==dt2) return 0;
    if (dt1<dt2) return -1;
    return 1;
}

function ts_sort_currency(a,b) { 
    aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).replace(/[^0-9.]/g,'');
    bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).replace(/[^0-9.]/g,'');
    return parseFloat(aa) - parseFloat(bb);
}

function ts_sort_numeric(a,b) { 
    aa = parseFloat(ts_getInnerText(a.cells[SORT_COLUMN_INDEX]));
    if (isNaN(aa)) aa = 0;
    bb = parseFloat(ts_getInnerText(b.cells[SORT_COLUMN_INDEX])); 
    if (isNaN(bb)) bb = 0;
    return aa-bb;
}

function ts_sort_caseinsensitive(a,b) {
    aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).toLowerCase();
    bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).toLowerCase();
    if (aa==bb) return 0;
    if (aa<bb) return -1;
    return 1;
}

function ts_sort_default(a,b) {
    aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
    bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
    if (aa==bb) return 0;
    if (aa<bb) return -1;
    return 1;
}


function addEvent(elm, evType, fn, useCapture)
// addEvent and removeEvent
// cross-browser event handling for IE5+,  NS6 and Mozilla
{
  if (elm.addEventListener){
    elm.addEventListener(evType, fn, useCapture);
    return true;
  } else if (elm.attachEvent){
    var r = elm.attachEvent("on"+evType, fn);
    return r;
  } else {
    alert("Handler could not be removed");
  }
} 

//END


/* ####################################################### */
/* Script for Product Detail Tabs Hide and Show */

//if (document.images && document.location.href.indexOf('sitemap.asp')==-1){
if (document.images){
	var bpressroomon=new Image();bpressroomon.src="/taec/common/images/nav_tabs/pressroom_on.gif";
	var bpressroomoff=new Image();bpressroomoff.src="/taec/common/images/nav_tabs/pressroom_off.gif";
	var bpressroomover=new Image();bpressroomover.src="/taec/common/images/nav_tabs/pressroom_over.gif";
	
	var barchiveson=new Image();barchiveson.src="/taec/common/images/nav_tabs/archives_on.gif";
	var barchivesoff=new Image();barchivesoff.src="/taec/common/images/nav_tabs/archives_off.gif";
	var barchivesover=new Image();barchivesover.src="/taec/common/images/nav_tabs/archives_over.gif";
		
	var bkiton=new Image();bkiton.src="/taec/common/images/nav_tabs/kit_on.gif";
	var bkitoff=new Image();bkitoff.src="/taec/common/images/nav_tabs/kit_off.gif";
	var bkitover=new Image();bkitover.src="/taec/common/images/nav_tabs/kit_over.gif";
	
	var binquiryon=new Image();binquiryon.src="/taec/common/images/nav_tabs/inquiry_on.gif";
	var binquiryoff=new Image();binquiryoff.src="/taec/common/images/nav_tabs/inquiry_off.gif";
	var binquiryover=new Image();binquiryover.src="/taec/common/images/nav_tabs/inquiry_over.gif";
	
	var brelatedon=new Image();brelatedon.src="/taec/common/images/nav_tabs/related_on.gif";
	var brelatedoff=new Image();brelatedoff.src="/taec/common/images/nav_tabs/related_off.gif";
	var brelatedover=new Image();brelatedover.src="/taec/common/images/nav_tabs/related_over.gif";
	}



/* Product Detail panel handling */
var currentOpenInfo="pressroom";

function actInfo(id){
	if(id!=currentOpenInfo){
		var buttname="b"+id;
		act(buttname);
	}
}

function inactInfo(id){
	//alert('id='+id+'\ncurrentOpenInfo='+currentOpenInfo);
	if(id!=currentOpenInfo){
		var buttname="b"+id;
		inact(buttname);
	}
}

function viewInfo(id){
	if(id!=currentOpenInfo){
		var buttname="b"+id;
		var prevbuttname="b"+currentOpenInfo;
		closePane(currentOpenInfo);
		if(document[prevbuttname])document[prevbuttname].src=eval(prevbuttname+'off.src');
		openPane(id);		
		document[buttname].src=eval(buttname+'on.src');
		currentOpenInfo=id;
	}
	//alert('id='+id+'\ncurrentOpenInfo='+currentOpenInfo);
}
function closePane(id){
	var theObj=getElementRef(id)
	if (theObj) {
		if (dom1||ie4plus){
			theObj.style.display='none';
		} else {
			theObj.display='none';
		}
	}
}

function openPane(id){
	var theObj=getElementRef(id)
	if (theObj) {
		if (dom1||ie4plus){
			theObj.style.display='block';
		} else {
			theObj.display='block';
		}
	}
}
/* ############################################################# */
/* Script for Product Detail tabs content handling */


var cookieName='collapsedPanels';
var daysToKeep = 365; // 

var expires = new Date();
expires.setTime(expires.getTime()+(daysToKeep*24*60*60*1000));

function initPanelSettings(){
	get_array(cookieName, collapsedPanelsList);//updates array from cookie
	//numPanelsToHide=collapsedPanelsList.length;
	
	collapsedPanelsListstr=collapsedPanelsList.join("\n");
	//alert('collapsedPanelsList='+collapsedPanelsListstr)
	//alert(collapsedPanelsList.length)
	//if(collapsedPanelsList.length>0){
		//if(collapsedPanelsList[0]==null)alert(collapsedPanelsList[0])
		/*
		if(collapsedPanelsList.length>0){
			for (i=0; i<collapsedPanelsList.length; i++) {
				//remove null values?
				//alert(collapsedPanelsList[i])
				if(collapsedPanelsList[i]==null || collapsedPanelsList[i]=="null") {
					var x=i;
					//alert('trying to del collapsedPanelsList['+i+']');
					del_entry(cookieName, collapsedPanelsList, xs, expires)
				}
			}	
		}
		*/
		for (i=0; i<collapsedPanelsList.length; i++) {
			togglePane(collapsedPanelsList[i],true)//closes panel without re-adding to array (second param)
		}

}
/*
function isPanelDisplayed(id){
	var theObj=getElementRef(id);
	if(theObj==null)return null;
	if (theObj.style){
		if(theObj.style.display=='block') return true;
		else return false;
	}else if (theObj.display){
		if(theObj.display)=='block') return true;
		else return false;
	}else{
		return null;
	}
}
*/
function openPane(id){
	var theObj=getElementRef(id);
	if(theObj==null)return;
	if(theObj.style)theObj.style.display='block';
	else if(theObj.display)theObj.display='block';
}
function closePane(id){
	var theObj=getElementRef(id);
	if(theObj==null)return;
	if(theObj.style)theObj.style.display='none';
	else if(theObj.display)theObj.display='none';
}

function togglePane(id,nonewcookieentry){
	//alert('togglePane')
	var theObj=getElementRef(id);
	if(theObj==null)return;//why try if we know the browser cant
	//get_array(cookieName, collapsedPanelsList);//update array from cookie
	
	if (theObj) {
		if (theObj.style){//browsers that support the style object
			if (theObj.style.display=='block') {
				//hiding panel
				//alert('hiding '+id)
				theObj.style.display='none';
				convertToShow(id);
				if(nonewcookieentry!=true){
					//add panel to cookie
					
					//attempting to see if this is already in the array
					var existsinarray=false;
					for (var j=0; j<collapsedPanelsList.length; j++) {
						if(id==collapsedPanelsList[j]) existsinarray=true;
					}
					
					if (!existsinarray){
						collapsedPanelsList[collapsedPanelsList.length]=id;
						set_array(cookieName, collapsedPanelsList, expires);
					}
				}
			}
			else {
				//showing panel
				//alert('showing '+id)
				theObj.style.display='block';
				convertToHide(id)
				//removing panel from cookie
				for (var j=0; j<collapsedPanelsList.length; j++) {
					if(collapsedPanelsList[j]==id){
						var pos = j; // assign the number of the value within the cookie that is to be deleted
						del_entry(cookieName, collapsedPanelsList, pos, expires);//
					}
				}
			}
		} else {//browsers that DONOT support the style object
			if (theObj.display=='block') {
				//hiding panel
				theObj.display='none';
				convertToShow(id);
				if(nonewcookieentry!=true){
					//add panel to cookie
					collapsedPanelsList[collapsedPanelsList.length]=id;
					set_array(cookieName, collapsedPanelsList, expires);
				}
			}
			else {
				//showing panel
				theObj.display='block';
				convertToHide(id);
				//removing panel from cookie
				for (var j=0; j<collapsedPanelsList.length; j++) {
					if(collapsedPanelsList[j]==id){
						var pos = j; // assign the number of the value within the cookie that is to be deleted
						del_entry(cookieName, collapsedPanelsList, pos, expires);//
					}
				}
			}
		}
	}
}

var hidebutt=new Image();hidebutt.src='../img/butt_red_hide.gif';
var showbutt=new Image();showbutt.src='../img/butt_red_show.gif';
var hidenewsbutt=new Image();hidenewsbutt.src='../img/butt_greybar_hide.gif';
var shownewsbutt=new Image();shownewsbutt.src='../img/butt_greybar_show.gif';

function convertToHide(n){
	if(document.images){
		imgname='showhide'+n;
		thisbutt=document[imgname];
		thisbutt.src=(n.indexOf('news')==-1)?hidebutt.src:hidenewsbutt.src;
		thisbutt.alt='Click to hide';
	}
}
function convertToShow(n){
	if(document.images){
		imgname='showhide'+n;
		thisbutt=document[imgname];
		thisbutt.src=(n.indexOf('news')==-1)?showbutt.src:shownewsbutt.src;
		thisbutt.alt='Click to show';
	}
}

var dom1=(document.getElementById)?1:0;
var ie4plus=(document.all)?1:0;
var ns4=(document.layers)?1:0;
var safari=(navigator.appVersion.indexOf("Safari") != -1)?1:0;
var mac=(navigator.appVersion.indexOf("Macintosh") != -1)?1:0;
var lowerUserAgent=navigator.userAgent.toLowerCase();
var opera = (lowerUserAgent.indexOf('opera')!=-1)?true:false;


function pact(imgN){if (document.images) document[imgN].src=pbuttover.src;}
function pinact(imgN){if (document.images) document[imgN].src=pbuttoff.src;}
function gact(imgN){if (document.images) document[imgN].src=gobuttover.src;}
function ginact(imgN){if (document.images) document[imgN].src=gobuttoff.src;}
function act(imgN){	if (document.images) document[imgN].src=eval(imgN+'over.src');}
function inact(imgN){if (document.images) document[imgN].src=eval(imgN+'off.src');}

function isUndefined(v) {
    var undef;
    return v===undef;
}

function getElementRef(id){
	if (dom1) return document.getElementById(id);
	else if (ie4plus) return document.all[id];
	else if (ns4) return document.layers[id];
	else return null;
}

//END
// Open and Close section 

function toggleFirstSection(divObj1,divObj2) {

state = document.getElementById(divObj2).style.display;

if(state != null && state == "none")
 {
 document.getElementById(divObj1).className = "firstSectionOpen";
 document.getElementById(divObj2).style.display = "block";
  } 
  else 
  {
	document.getElementById(divObj1).className = "firstSectionClose";
	document.getElementById(divObj2).style.display = "none";
  }
}

function toggleSecondSection(divObj1,divObj2) {

state = document.getElementById(divObj2).style.display;
 
 if(state != null && state == "none") 
 {
  document.getElementById(divObj1).className = "secondSectionOpen";
  document.getElementById(divObj2).style.display = "block";
  } 
  else 
  {
   document.getElementById(divObj1).className = "secondSectionClose";
   document.getElementById(divObj2).style.display = "none";
  }
}

function toggleThirdSection(divObj1,divObj2) {

state = document.getElementById(divObj2).style.display;
 
 if(state != null && state == "none") 
 {
  document.getElementById(divObj1).className = "thirdSectionOpen";
  document.getElementById(divObj2).style.display = "block";
  } 
  else 
  {
   document.getElementById(divObj1).className = "thirdSectionClose";
   document.getElementById(divObj2).style.display = "none";
  }
}
function toggleSectionA(divObj1,divObj2) {

state = document.getElementById(divObj2).style.display;

if(state != null && state == "none")
 {
 document.getElementById(divObj1).className = "sectionAOpen";
 document.getElementById(divObj2).style.display = "block";
  } 
  else 
  {
	document.getElementById(divObj1).className = "sectionAClose";
	document.getElementById(divObj2).style.display = "none";
  }
}
//END
function switchcontent(className){
this.className=className
this.collapsePrev=false //Default: Collapse previous content each time
this.enablePersist=false //Default: Disable session only persistence
//Limit type of element to scan for on page for switch contents if 2nd function parameter is defined, for efficiency sake (ie: "div")
this.filter_content_tag=(arguments.length==2)? arguments[1].toLowerCase() : ""
}

switchcontent.prototype.setStatus=function(openHTML, closeHTML){ //PUBLIC: Set open/ closing HTML indicator. Optional
this.statusOpen=openHTML
this.statusClosed=closeHTML
}

switchcontent.prototype.setColor=function(openColor, closeColor){ //PUBLIC: Set open/ closing color of switch header. Optional
this.colorOpen=openColor
this.colorClosed=closeColor
}

switchcontent.prototype.setPersist=function(bool){ //PUBLIC: Enable/ disable persistence. Default is true.
this.enablePersist=bool
}

switchcontent.prototype.collapsePrevious=function(bool){ //PUBLIC: Enable/ disable collapse previous content. Default is false.
this.collapsePrev=bool
}


switchcontent.prototype.sweepToggle=function(setting){ //PUBLIC: Expand/ contract all contents method. (Values: "contract"|"expand")
if (typeof this.headers!="undefined" && this.headers.length>0){ //if there are switch contents defined on the page
for (var i=0; i<this.headers.length; i++){
if (setting=="expand")
this.expandcontent(this.headers[i]) //expand each content
else if (setting=="contract")
this.contractcontent(this.headers[i]) //contract each content
}
}
}


// -------------------------------------------------------------------
// PUBLIC: defaultExpanded(indices_of_contents)- Set contents that should be expanded by default when the page loads.
// Note that the persistence feature (if enabled) overrides this setting.
// Pass in the position of the contents relative to the rest of the contents ie: defaultExpanded(0,2,3) would expand the 1st, 3rd, and 4th contents by default
// -------------------------------------------------------------------

switchcontent.prototype.defaultExpanded=function(){
var expandedindices=[] //Array to hold indices (position) of content to be expanded by default
//Loop through function arguments, and store each one within array
//Two test conditions: 1) End of Arguments array, or 2) If "collapsePrev" is enabled, only the first entered index (as only 1 content can be expanded at any time)
for (var i=0; (!this.collapsePrev && i<arguments.length) || (this.collapsePrev && i==0); i++)
expandedindices[expandedindices.length]=arguments[i]
this.expandedindices=expandedindices.join(",") //convert array into a string of the format: "0,2,3" for later parsing by script
}


//PRIVATE: Sets color of switch header.

switchcontent.prototype.togglecolor=function(header, status){
if (typeof this.colorOpen!="undefined")
header.style.color=status
}


//PRIVATE: Sets status indicator HTML of switch header.

switchcontent.prototype.togglestatus=function(header, status){
if (typeof this.statusOpen!="undefined")
header.firstChild.innerHTML=status
}


//PRIVATE: Contracts a content based on its corresponding header entered

switchcontent.prototype.contractcontent=function(header){
var innercontent=document.getElementById(header.id.replace("-title", "")) //Reference content for this header
innercontent.style.display="none"
this.togglestatus(header, this.statusClosed)
this.togglecolor(header, this.colorClosed)
}


//PRIVATE: Expands a content based on its corresponding header entered

switchcontent.prototype.expandcontent=function(header){
var innercontent=document.getElementById(header.id.replace("-title", ""))
innercontent.style.display="block"
this.togglestatus(header, this.statusOpen)
this.togglecolor(header, this.colorOpen)
}

// -------------------------------------------------------------------
// PRIVATE: toggledisplay(header)- Toggles between a content being expanded or contracted
// If "Collapse Previous" is enabled, contracts previous open content before expanding current
// -------------------------------------------------------------------

switchcontent.prototype.toggledisplay=function(header){
var innercontent=document.getElementById(header.id.replace("-title", "")) //Reference content for this header
if (innercontent.style.display=="block")
this.contractcontent(header)
else{
this.expandcontent(header)
if (this.collapsePrev && typeof this.prevHeader!="undefined" && this.prevHeader.id!=header.id) // If "Collapse Previous" is enabled and there's a previous open content
this.contractcontent(this.prevHeader) //Contract that content first
}
if (this.collapsePrev)
this.prevHeader=header //Set current expanded content as the next "Previous Content"
}


// -------------------------------------------------------------------
// PRIVATE: collectElementbyClass()- Searches and stores all switch contents (based on shared class name) and their headers in two arrays
// Each content should carry an unique ID, and for its header, an ID equal to "CONTENTID-TITLE"
// -------------------------------------------------------------------

switchcontent.prototype.collectElementbyClass=function(classname){ //Returns an array containing DIVs with specified classname
var classnameRE=new RegExp("(^|\\s+)"+classname+"($|\\s+)", "i") //regular expression to screen for classname within element
this.headers=[], this.innercontents=[]
if (this.filter_content_tag!="") //If user defined limit type of element to scan for to a certain element (ie: "div" only)
var allelements=document.getElementsByTagName(this.filter_content_tag)
else //else, scan all elements on the page!
var allelements=document.all? document.all : document.getElementsByTagName("*")
for (var i=0; i<allelements.length; i++){
if (typeof allelements[i].className=="string" && allelements[i].className.search(classnameRE)!=-1){
if (document.getElementById(allelements[i].id+"-title")!=null){ //if header exists for this inner content
this.headers[this.headers.length]=document.getElementById(allelements[i].id+"-title") //store reference to header intended for this inner content
this.innercontents[this.innercontents.length]=allelements[i] //store reference to this inner content
}
}
}
}


//PRIVATE: init()- Initializes Switch Content function (collapse contents by default unless exception is found)

switchcontent.prototype.init=function(){
var instanceOf=this
this.collectElementbyClass(this.className) //Get all headers and its corresponding content based on shared class name of contents
if (this.headers.length==0) return //If no headers are present (no contents to switch), just exit
var opencontents_ids=(this.enablePersist)? ','+switchcontent.getCookie(this.className)+',' : (!this.enablePersist)? ','+this.expandedindices+',' : ""
for (var i=0; i<this.headers.length; i++){ //BEGIN FOR LOOP (1)
if (typeof this.statusOpen!="undefined") //If open/ closing HTML indicator is enabled/ set
this.headers[i].innerHTML='<span class="status"></span>'+this.headers[i].innerHTML //Add a span element to original HTML to store indicator
if (opencontents_ids.indexOf(','+i+',')!=-1){ //(2) if index "i" exists within cookie string or default-enabled string (i=position of the content to expand)
this.expandcontent(this.headers[i]) //Expand each content per stored indices (if ""Collapse Previous" is set, only one content)
if (this.collapsePrev) //If "Collapse Previous" set
this.prevHeader=this.headers[i]  //Indicate the expanded content's corresponding header as the last clicked on header (for logic purpose)
}
else //else if no indices found in stored string
this.contractcontent(this.headers[i]) //Contract each content by default
this.headers[i].onclick=function(){instanceOf.toggledisplay(this)}
}
if (this.enablePersist)
switchcontent.dotask(window, function(){instanceOf.rememberpluscleanup()}, "unload") //Call persistence method onunload
}


// -------------------------------------------------------------------
// PRIVATE: rememberpluscleanup()- Stores the indices of content that are expanded inside session only cookie
// If "Collapse Previous" is enabled, only 1st expanded content index is stored
// -------------------------------------------------------------------

switchcontent.prototype.rememberpluscleanup=function(){ //store index of opened ULs relative to other ULs in Tree into cookie
var opencontents=new Array()
for (var i=0; i<this.innercontents.length; i++){
//If persistence enabled, content in question is expanded, and either "Collapse Previous" is disabled, or if enabled, this is the first expanded content
if (this.enablePersist && this.innercontents[i].style.display=="block" && (!this.collapsePrev || (this.collapsePrev && opencontents.length<1)))
opencontents[opencontents.length]=i //save the index of the opened UL (relative to the entire list of ULs) as an array element
this.headers[i].onclick=null //Cleanup code
}
if (typeof this.statusOpen!="undefined") //Cleanup code
this.statusOpen=this.statusClosed=null //Cleanup code
switchcontent.setCookie(this.className, opencontents.join(",")) //populate cookie with indices of open contents: classname=1,2,3,etc
}


// -------------------------------------------------------------------
// A few utility functions below:
// -------------------------------------------------------------------


switchcontent.dotask=function(target, functionref, tasktype){ //assign a function to execute to an event handler (ie: onunload)
var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
if (target.addEventListener)
target.addEventListener(tasktype, functionref, false)
else if (target.attachEvent)
target.attachEvent(tasktype, functionref)
}

switchcontent.getCookie=function(Name){ 
var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
if (document.cookie.match(re)) //if cookie found
return document.cookie.match(re)[0].split("=")[1] //return its value
return ""
}

switchcontent.setCookie=function(name, value){
document.cookie = name+"="+value
}