/***********************************************

* Switch Content script- � Dynamic Drive (www.dynamicdrive.com)

* This notice must stay intact for legal use. Last updated Mar 23rd, 2004.

* Visit http://www.dynamicdrive.com/ for full source code

***********************************************/



var enablepersist="off" //Enable saving state of content structure using session cookies? (on/off)

var collapseprevious="yes" //Collapse previously open content when opening present? (yes/no)

var aktuelleauswahl = "legende";


if (document.getElementById){
try{
	document.write('<style type="text/css">')
	
	document.write('.switchcontent{display:none;}')
	
	document.write('</style>')
}catch(e){
	;
}
}



function getElementbyClass(classname){

ccollect=new Array()

var inc=0

var alltags=document.all? document.all : document.getElementsByTagName("*")

for (i=0; i<alltags.length; i++){

if (alltags[i].className==classname)

ccollect[inc++]=alltags[i]

}

}



function contractcontent(omit){

var inc=0

while (ccollect[inc]){

if (ccollect[inc].id!=omit)

ccollect[inc].style.display="none"

inc++

}

}



function expandcontent(cid){

if (aktuelleauswahl != cid) {

	aktuelleauswahl = cid;

	if (typeof ccollect!="undefined"){

	if (collapseprevious=="yes")

	contractcontent(cid)

	document.getElementById(cid).style.display=(document.getElementById(cid).style.display!="block")? "block" : "none"

	}

}

}



function revivecontent(){

contractcontent("omitnothing")

selectedItem=getselectedItem()

selectedComponents=selectedItem.split("|")

for (i=0; i<selectedComponents.length-1; i++)

document.getElementById(selectedComponents[i]).style.display="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 getselectedItem(){

if (get_cookie(window.location.pathname) != ""){

selectedItem=get_cookie(window.location.pathname)

return selectedItem

}

else

return ""

}



function saveswitchstate(){

var inc=0, selectedItem=""

while (ccollect[inc]){

if (ccollect[inc].style.display=="block")

selectedItem+=ccollect[inc].id+"|"

inc++

}



document.cookie=window.location.pathname+"="+selectedItem

}



function do_onload(){

	uniqueidn=window.location.pathname+"firsttimeload"
	
	getElementbyClass("switchcontent")
	
	if (enablepersist=="on" && typeof ccollect!="undefined"){
	
		document.cookie=(get_cookie(uniqueidn)=="")? uniqueidn+"=1" : uniqueidn+"=0" 
		
		firsttimeload=(get_cookie(uniqueidn)==1)? 1 : 0 //check if this is 1st page load
		
		if (!firsttimeload)
		
		revivecontent()
	
	}

}





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



if (enablepersist=="on" && document.getElementById)

window.onunload=saveswitchstate