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

* 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="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 contractsymbol='' //HTML for contract symbol. For image, use: <img src="whatever.gif">

var expandsymbol='' //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