/***********************************************
* Tab Content script- Copyright Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/

////////Stop editting////////////////

function cascadedstyle(el, cssproperty, csspropertyNS){
	if (el.currentStyle)
		return el.currentStyle[cssproperty]
	else if (window.getComputedStyle){
		var elstyle=window.getComputedStyle(el, "")
		return elstyle.getPropertyValue(csspropertyNS)
	}
}

var previoustab=""
var tablistId = "tablist";
var setSelfImage = false;
var offImage = "url(/content/eu/images/tab.gif)";
var offImageLast = "url(/content/eu/images/tab_last.gif)";
var onImage = "url(/content/eu/images/tab_all.gif)";
var onImageLast = "url(/content/eu/images/tab_last_all.gif)";

function expandcontent(cid, aobject){
	if (document.getElementById){
		highlighttab(aobject)
		detectSourceindex(aobject)
		if (previoustab!="")
			document.getElementById(previoustab).style.display="none"
		document.getElementById(cid).style.display="inline"
		previoustab=cid
		if (aobject.blur)
			aobject.blur()
		return false
	}
	else
		return true
}

function highlighttab(aobject){
	if (typeof tabobjlinks=="undefined")
		collecttablinks()
	var themecolor=aobject.getAttribute("theme")? aobject.getAttribute("theme") : initTabpostcolor
	for (i=0; i<tabobjlinks.length; i++) {
	  //tabobjlinks[i].style.backgroundColor=initTabcolor;
	  tabobjlinks[i].style.color=themecolor
		if( i < tabobjlinks.length - 1 ) {
			tabobjlinks[i].parentNode.style.backgroundImage = offImage;
			if( setSelfImage ) 
				tabobjlinks[i].style.backgroundImage = offImage;
		}
		else {
			tabobjlinks[i].parentNode.style.backgroundImage = offImageLast;
			if( setSelfImage )
				tabobjlinks[i].style.backgroundImage = offImageLast;
		}
	}
	//aobject.style.backgroundColor=themecolor
	aobject.style.color="#FFFFFF";
	if( aobject.parentNode.id == 'last_section' ) {
		aobject.parentNode.style.backgroundImage = onImageLast;
		if( setSelfImage ) 
			aobject.style.backgroundImage = onImageLast;
	}
	else {
		aobject.parentNode.style.backgroundImage = onImage;
		if( setSelfImage ) 
			aobject.style.backgroundImage = onImage;
	}
}

function collecttablinks(){
	var tabobj=document.getElementById(tablistId)
	if (tabobj)
		tabobjlinks=tabobj.getElementsByTagName("A")
}

function detectSourceindex(aobject){
	for (i=0; i<tabobjlinks.length; i++) {
		if (aobject==tabobjlinks[i]) {
			tabsourceindex=i //source index of tab bar relative to other tabs
			break
		}
	}
}

function do_onload(){
	var cookiecheck=window.get_cookie && get_cookie(window.location.pathname).indexOf("|")!=-1
	collecttablinks()
	if (typeof tabobjlinks=="undefined")
		return;

	initTabcolor=cascadedstyle(tabobjlinks[1], "backgroundColor", "background-color")
	initTabpostcolor=cascadedstyle(tabobjlinks[0], "backgroundColor", "background-color")
	if (typeof enablepersistence!="undefined" && enablepersistence && cookiecheck){
		var cookieparse=get_cookie(window.location.pathname).split("|")
		var whichtab=cookieparse[0]
		var tabcontentid=cookieparse[1]
		expandcontent(tabcontentid, tabobjlinks[whichtab])
	}
	else
		expandcontent(initialtab[1], tabobjlinks[initialtab[0]-1])
}

function setTabIdentifiers(_tablistId, _onImage, _onImageLast, _offImage, _offImageLast, _setSelfImage) {
	tablistId = _tablistId;
	onImage = _onImage;
	onImageLast = _onImageLast;
	offImage = _offImage;
	offImageLast = _offImageLast;
	setSelfImage = _setSelfImage;
}

if (window.addEventListener)
	window.addEventListener("load", do_onload, false)
else if (window.attachEvent)
	window.attachEvent("onload", do_onload)
else if (document.getElementById)
	window.onload=do_onload



//Dynamicdrive.com persistence feature add-on
/////////////////////////////////////////////

var enablepersistence=false; //true to enable persistence, false to turn off (or simply remove this entire script block).

function get_cookie(Name) {
	var search = Name + "="
	var returnvalue = "";
	if (document.cookie.length > 0) {
		offset = document.cookie.indexOf(search)
		if (offset != -1) {
			offset += search.length
			end = document.cookie.indexOf(";", offset);
			if (end == -1) end = document.cookie.length;
			returnvalue=unescape(document.cookie.substring(offset, end))
		}
	}
	return returnvalue;
}

function savetabstate(){
	if (typeof tabsourceindex!="undefined")
		document.cookie=window.location.pathname+"="+tabsourceindex+"|"+previoustab
}

window.onunload=savetabstate

//Dynamicdrive.com persistence feature add-on
/////////////////////////////////////////////