// JavaScript Document

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 uniqueidn="nonunique";
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 expandcontent(cid){
	if (typeof ccollect!="undefined"){
		document.getElementById(cid).style.display=(document.getElementById(cid).style.display!="block")? "block" : "none";
		document.cookie=(document.getElementById(cid).style.display!="block")? uniqueidn+"=0" : uniqueidn+"=1";
	}
}

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 do_onload()
{
	getElementbyClass("switchcontent");
	if (enablepersist=="on" && typeof ccollect!="undefined"){
		firsttimeload=(get_cookie(uniqueidn)==1)? 1 : 0; //check if this is 1st page load
		if (firsttimeload)
		expandcontent('adv_search');
	}
}


// 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;