//////////No need to edit beyond here///////////////////////////
var persisteduls=new Object();

ddtreemenu.createTree=function(treeid, enablepersist, persistdays, unfolding)
{
	var ultags=document.getElementById(treeid).getElementsByTagName('ul');
	if (typeof unfolding=='undefined')
	{
		unfolding='true';
	}
	if (typeof persisteduls[treeid]=='undefined')
		persisteduls[treeid]=(enablepersist==true && ddtreemenu.getCookie(treeid)!='')? ddtreemenu.getCookie(treeid).split(',') : '';
	for (var i=0; i < ultags.length; i++)
		ddtreemenu.buildSubTree(treeid, ultags[i], i, unfolding);
	if (enablepersist==true)
	{
		var durationdays=(typeof persistdays=='undefined')? 1 : parseInt(persistdays);
		ddtreemenu.dotask(window, function(){ddtreemenu.rememberstate(treeid, durationdays)}, 'unload')
	}
};

ddtreemenu.buildSubTree=function(treeid, ulelement, index, unfolding)
{
	ulelement.parentNode.className='submenu'
	if (typeof persisteduls[treeid]=='object')
	{
		if (ddtreemenu.searcharray(persisteduls[treeid], index))
		{
			ulelement.setAttribute('rel', 'open');
			ulelement.style.display='inline';
			ulelement.parentNode.style.backgroundImage='url('+ddtreemenu.openfolder+')';
		}
		else
		{
			ulelement.setAttribute('rel', 'closed');
		}
	}
	else if (ulelement.getAttribute('rel')==null || ulelement.getAttribute('rel')==false)
		ulelement.setAttribute('rel', 'closed');
	else if (ulelement.getAttribute('rel')=='open')
		ddtreemenu.expandSubTree(treeid, ulelement);
	ulelement.parentNode.onclick=function(e)
	{
		if(unfolding=='true' ||(unfolding=='false' && ulelement.parentNode.parentNode.className=='treeview'))
		{
			var submenu=this.getElementsByTagName('ul')[0];
			if (submenu.getAttribute('rel')=='closed')
			{
				submenu.style.display='inline';
				submenu.setAttribute('rel', 'open');
				ulelement.parentNode.style.backgroundImage='url('+ddtreemenu.openfolder+')';
			}
			else if (submenu.getAttribute('rel')=='open')
			{
				submenu.style.display='none';
				submenu.setAttribute('rel', 'closed');
				ulelement.parentNode.style.backgroundImage='url('+ddtreemenu.closefolder+')';
			}
		}
		ddtreemenu.preventpropagate(e);
	};
	ulelement.onclick=function(e)
	{
		ddtreemenu.preventpropagate(e);
	};
};

ddtreemenu.expandSubTree=function(treeid, ulelement)
{
	var rootnode=document.getElementById(treeid);
	var currentnode=ulelement;
	currentnode.style.display='inline';
	currentnode.parentNode.style.backgroundImage='url('+ddtreemenu.openfolder+')';
	while (currentnode!=rootnode)
	{
		if (currentnode.tagName=='UL')
		{
			currentnode.style.display='inline';
			currentnode.setAttribute('rel', 'open');
			currentnode.parentNode.style.backgroundImage='url('+ddtreemenu.openfolder+')';
		}
		currentnode=currentnode.parentNode;
	}
};

ddtreemenu.flatten=function(treeid, action)
{
	var ultags=document.getElementById(treeid).getElementsByTagName('ul')
	for (var i=0; i < ultags.length; i++)
	{
		ultags[i].style.display=(action=='expand')? 'inline' : 'none';
		var relvalue=(action=='expand')? 'open' : 'closed';
		ultags[i].setAttribute('rel', relvalue);
		ultags[i].parentNode.style.backgroundImage=(action=='expand')? 'url('+ddtreemenu.openfolder+')' : 'url('+ddtreemenu.closefolder+')';
	}
};

ddtreemenu.rememberstate=function(treeid, durationdays)
{
	var ultags=document.getElementById(treeid).getElementsByTagName('ul');
	var openuls=new Array();
	for (var i=0; i < ultags.length; i++)
	{
		if (ultags[i].getAttribute('rel')=='open')
			openuls[openuls.length]=i;
	}
	if (openuls.length==0)
		openuls[0]='none open';
	ddtreemenu.setCookie(treeid, openuls.join(','), durationdays);
};

ddtreemenu.getCookie=function(Name)
{
	var re=new RegExp(Name+'=[^;]+', 'i');
	if (document.cookie.match(re))
		return document.cookie.match(re)[0].split('=')[1];
	return '';
};

ddtreemenu.setCookie=function(name, value, days)
{
	var expireDate = new Date();
	var expstring=expireDate.setDate(expireDate.getDate()+parseInt(days));
	document.cookie = name+'='+value+'; expires='+expireDate.toGMTString()+'; path=/';
};

ddtreemenu.searcharray=function(thearray, value)
{
	var isfound=false;
	for (var i=0; i<thearray.length; i++)
	{
		if (thearray[i]==value)
		{
			isfound=true;
			thearray.shift();
			break;
		}
	}
	return isfound;
};

ddtreemenu.preventpropagate=function(e)
{
	if (typeof e!='undefined')
		e.stopPropagation();
	else
		event.cancelBubble=true;
};

ddtreemenu.dotask=function(target, functionref, tasktype)
{
	var tasktype=(window.addEventListener)? tasktype : 'on'+tasktype;
	if (target.addEventListener)
		target.addEventListener(tasktype, functionref, false);
	else if (target.attachEvent)
		target.attachEvent(tasktype, functionref);
};