// JavaScript Document



/*************************************************************************
* Site Nav : show / hide
*************************************************************************/

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, operaFlag)
	{
	var inc=0
	while (ccollect[inc])
		{
		ccollect[inc].style.display=ec=="contract"? "none" : ""
		inc++
		}
	revivestatus()
	if (enablepersist=="on"&&window.opera&&!operaFlag)
	saveswitchstate();
	}

function expandcontent(curobj, cid)
	{
	if (ccollect.length>0)
		{
		var el=document.getElementById(cid);
		//alert(curobj.href);
		var ef=document.getElementById("img" + cid)
		el.style.display=el.style.display!="none"? "none" : ""
		ef.src=(el.style.display=="none")? expandsymbol : contractsymbol
		}
	if (enablepersist=="on"&&window.opera)
	saveswitchstate();
	
	if ( el.style.display == "none" ) // closing link
		{
		//alert("cancel link");
		return false;
		}
		else // opening link
		{
		if ( window.location.href == curobj.href )
			{
			return false;
			}
		else if ( ! curobj.href )
			{
			return false;
			}
		else
			{
			window.location.href = curobj.href;
			}
		window.status = "Done";
		}
	}

function revivecontent()
	{
	selectedItem=getselectedItem()
	selectedComponents=selectedItem.split("|")
	for (i=0; i<selectedComponents.length-1; i++)
		{
		document.getElementById(selectedComponents[i]).style.display=initialstate? "none" : ""
		}
	}

function revivestatus()
	{
	var inc=0
	while (statecollect[inc])
		{
		if (ccollect[inc].style.display=="none")
			{
			statecollect[inc].src=expandsymbol
			}
			else
			{
			statecollect[inc].src=contractsymbol
			}			
		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()
	{//window.location.pathname
	if (get_cookie("navigation") != "")
		{
			//window.location.pathname
		selectedItem=get_cookie("navigation")
		return selectedItem
		}
	else
		return ""
	}

function saveswitchstate()
	{
	var inc=0, selectedItem=""
	while (ccollect[inc])
		{
		if (!initialstate&&ccollect[inc].style.display!=="none"||initialstate&&ccollect[inc].style.display=="none")
		selectedItem+=ccollect[inc].id+"|"
		inc++
		}
	//alert(window.location.pathname + " " + selectedItem);
	if (get_cookie(window.location.pathname)!=selectedItem)
		{ //only update cookie if current states differ from cookie's
		var expireDate = new Date()
		expireDate.setDate(expireDate.getDate()+parseInt(memoryduration))
		//alert(window.location.pathname);
		document.cookie = "navigation="+selectedItem+";path=/;expires=" + expireDate.toGMTString()
		}
	}

function do_onload()
	{//window.location.pathname
	uniqueidn="navigation"+"firsttimeload"
	var alltags=document.all? document.all : document.getElementsByTagName("*")
	ccollect=getElementbyClass(alltags, "switchcontent")
	statecollect=getElementbyClass(alltags, "showstate")
	/*statecollectb=getElementbyClass(alltags, "showstateb")*/
	if(!initialstate)
		{ // if previous state cookie doesnt exist close all
		sweeptoggle('contract', 1)
		document.getElementById('added').disabled=true
		}
	//window.location.pathname
	if (enablepersist=="on" && get_cookie("navigation")!="" && ccollect.length>0)
	revivecontent()
	if (ccollect.length>0 && statecollect.length>0)
	revivestatus()
	//alert("yo");
	//alert(window.location);
	}

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
	}
















	
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}