/***********************************************
    * Switch Content script- © Dynamic Drive (www.dynamicdrive.com)
    * This notice must stay intact for legal use. Last updated April 2nd, 2005.
    * Visit http://www.dynamicdrive.com/ for full source code
    ***********************************************/

    var enablepersist="on" //Enable saving state of content structure using session cookies? (on/off)
    var collapseprevious="yes" //Collapse previously open content when opening present? (yes/no)

    var contractsymbol='<img src="icon_contract.gif" alt="Zuklappen" /> ' //HTML for contract symbol. For image, use normal image-code
    var expandsymbol='<img src="icon_expand.gif" alt="Aufklappen" /> ' //HTML for expand symbol.

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

    function getElementbyClass(rootobj, classname){
    var temparray=new Array()
    var inc=0
    var rootlength=rootobj.length
    for (i=0; i<rootlength; i++){
    if (rootobj[i].className==classname)
    temparray[inc++]=rootobj[i]
    }
    return temparray
    }

    function sweeptoggle(ec){
    var thestate=(ec=="expand")? "block" : "none"
    var inc=0
    while (ccollect[inc]){
    ccollect[inc].style.display=thestate
    inc++
    }
    revivestatus()
    }

    function contractcontent(omit){
    var inc=0
    while (ccollect[inc]){
    if (ccollect[inc].id!=omit)
    ccollect[inc].style.display="none"
    inc++
    }
    }

    function expandcontent(curobj, cid){
    var spantags=curobj.getElementsByTagName("SPAN")
    var showstateobj=getElementbyClass(spantags, "showstate")
    if (ccollect.length>0){
    if (collapseprevious=="yes")
    contractcontent(cid)
    document.getElementById(cid).style.display=(document.getElementById(cid).style.display!="block")? "block" : "none"
    if (showstateobj.length>0){ //if "showstate" span exists in header
    if (collapseprevious=="no")
    showstateobj[0].innerHTML=(document.getElementById(cid).style.display=="block")? contractsymbol : expandsymbol
    else
    revivestatus()
    }
    }
    }

    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 revivestatus(){
    var inc=0
    while (statecollect[inc]){
    if (ccollect[inc].style.display=="block")
    statecollect[inc].innerHTML=contractsymbol
    else
    statecollect[inc].innerHTML=expandsymbol
    inc++
    }
    }

    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"
    var alltags=document.all? document.all : document.getElementsByTagName("*")
    ccollect=getElementbyClass(alltags, "switchcontent")
    statecollect=getElementbyClass(alltags, "showstate")
    if (enablepersist=="on" && ccollect.length>0){
    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 (ccollect.length>0 && statecollect.length>0)
    revivestatus()
    }

    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