//Pop-it menu- By Dynamic Drive
//For full source code and more DHTML scripts, visit http://www.dynamicdrive.com
//This credit MUST stay intact for use

var menudrop=new Array()
//SPECIFY MENU SETS AND THEIR LINKS. FOLLOW SYNTAX LAID OUT

//menuExp='<a class="topmenuA" href="expos.php">colectivas</a><br>'
//menuExp+='<a class="topmenuA" href="exposi.php">individuais</a><br>'
//menuExp+='<a class="topmenuA" href="exposg.php">convidados</a><br>'


////No need to edit beyond here

var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1
var ns6=document.getElementById&&!document.all
var ns4=document.layers

function findPosX(obj)
{

	var curleft = 0;
	if (document.getElementById || document.all)
	{
		while (obj.offsetParent)
		{
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	}
	else if (document.layers)
		curleft += obj.x;
	return curleft;
}

function findPosY(obj)
{
	var curtop = 0;
	if (document.getElementById || document.all)
	{
		while (obj.offsetParent)
		{
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	}
	else if (document.layers)
		curtop += obj.y;
	return curtop;
}



function showmenu(which,a)
{
	if (!document.all&&!document.getElementById&&!document.layers)
		return;

	clearhidemenu();

	menuobj=ie4? document.all.popmenu : ns6? document.getElementById("popmenu") : ns4? document.popmenu : "";
	menuobj.thestyle=(ie4||ns6)? menuobj.style : menuobj;

	if (ie4||ns6)
		menuobj.innerHTML=which;
	else {
		menuobj.document.write('<layer name=gui bgColor=#E6E6E6 width=165 onmouseover="clearhidemenu()" onmouseout="hidemenu()">'+which+'</layer>');
		menuobj.document.close();
	}

	menuobj.thestyle.left=findPosX(a)-5;
	menuobj.thestyle.top=findPosY(a)+21;

	menuobj.thestyle.visibility="visible";
	return false;
}

function contains_ns6(a, b) 
{
	//Determines if 1 element in contained in another- by Brainjar.com
	while (b.parentNode)
		if ((b = b.parentNode) == a)
			return true;
	return false;
}

function hidemenu()
{
	if (window.menuobj)
		menuobj.thestyle.visibility=(ie4||ns6)? "hidden" : "hide";
}

function dynamichide(e)
{
	if (ie4&&!menuobj.contains(e.toElement))
		hidemenu();
	else 
	if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
		hidemenu();
}

function delayhidemenu()
{
	if (ie4||ns6||ns4)
		delayhide=setTimeout("hidemenu()",500);
}

function clearhidemenu()
{
	if (window.delayhide)
		clearTimeout(delayhide);
}

function highlightmenu(e,state)
{
	if (document.all)
		source_el=event.srcElement;
	else 
	if (document.getElementById)
		source_el=e.target;

	if (source_el.className=="menuitems") {
		source_el.id=(state=="on")? "mouseoverstyle" : "";
	} else{
		while(source_el.id!="popmenu") {
			source_el=document.getElementById? source_el.parentNode : source_el.parentElement;
			if (source_el.className=="menuitems"){
				source_el.id=(state=="on")? "mouseoverstyle" : "";
			}
		}
	}
}

if (ie4||ns6)
	document.onclick=hidemenu;