/***********************************************
* Contractible Headers script- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use. Last updated Oct 21st, 2003.
* 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)

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

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 swapimage(id, state)
            {
            	if (window.document.images)
            	//alert(state)
            		if (state){
            			window.document.images[id].src = "../images/plus.gif";
					}else{
            			window.document.images[id].src = "../images/minus.gif"
					}
            }
            
            function contractcontent(omit)
            {
                var inc = 0
                while (ccollect[inc])
                {
                    if (ccollect[inc].id != omit)
                    {
                        ccollect[inc].style.display = "none"
						if (window.document.images["img"+ccollect[inc].id])
						{
						swapimage("img"+ccollect[inc].id, true)
						}
                    }
                    inc++
                }
            }

            function expandcontent(cid)
            {//alert(cid);
                if (typeof ccollect != "undefined")
                {
                	if (collapseprevious == "yes")
                        contractcontent(cid)

					if (document.getElementById(cid).style.display != "block")
					{
						if (window.document.images["img"+cid])
						{
                        	swapimage("img"+cid, false)
						}
	                    document.getElementById(cid).style.display = "block"
					}
					else
					{
	                    document.getElementById(cid).style.display = "none"
						if (window.document.images["img"+cid])
						{
                        	swapimage("img"+cid, true)
						}
					}
                }
            }



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

function expandcontent(cid)
{
	if (typeof ccollect!="undefined")
	{
		flipImg(cid);
		
		if (collapseprevious=="yes")
		{

			contractcontent(cid);
		}

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

function flipImg(cid)
{
	var imgName=''
	var imgPlus='images/plus.gif'
	var imgMinus='images/minus.gif'
	var currImage=''
	imgName ='img'+cid
	if (document.getElementById(imgName) != null)
	{
		currImage = document.getElementById(imgName).src
	
		if(currImage==imgPlus)
			document.getElementById(imgName).src=imgMinus
		else
			document.getElementById(imgName).src=imgPlus
	}		
}

function closeImg(cid)
{
	var imgName=''
	var imgPlus='images/plus.gif'
	var imgMinus='images/minus.gif'
	var currImage=''
	imgName ='img'+cid
	if (document.getElementById(imgName) != null)
	{
		document.getElementById(imgName).src = imgPlus	
	}		
}*/


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 checkprint(sName)
{
  var aCookie = document.cookie.split("; ");
  for (var i=0; i < aCookie.length; i++)
  {
    var aCrumb = aCookie[i].split("=");
    if (sName == aCrumb[0]) 
      return unescape(aCrumb[1]);
  }
  return null;
}

function getexpirydate( nodays)
 { 
var UTCstring; 
Today = new Date(); 
nomilli=Date.parse(Today); 
Today.setTime(nomilli+nodays*24*60*60*1000); 
UTCstring = Today.toUTCString(); 
return UTCstring; 
}


function do_onload(){
	getElementbyClass("switchcontent")
	
	if(checkprint("printpage")!="yes")
	{
		if (enablepersist=="on" && typeof ccollect!="undefined")
			revivecontent()
	}
	document.cookie="printpage"+"="+escape("no")+";EXPIRES="+getexpirydate(2); 
}


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