function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function MM_changeProp(objName,x,theProp,theValue) { //v6.0
  var obj = MM_findObj(objName);
  if (obj && (theProp.indexOf("style.")==-1 || obj.style)){
    if (theValue == true || theValue == false)
      eval("obj."+theProp+"="+theValue);
    else eval("obj."+theProp+"='"+theValue+"'");
  }
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

// functions for menu
function startMenu() {
	var x = document.getElementsByTagName('DIV');	
	for (var i=0;i<x.length;i++){
		if (x[i].className == 'label')
			x[i].onclick = clickNav;
	}
	closeNav();
	if (top.setNav)
		setNav(top.setNav,'currentPage');
	
}
function closeNav(){
	var x = document.getElementsByTagName('div');
	for (var i=0;i<x.length;i++){
		if (x[i].className == 'content')
			x[i].style.display = 'none';
	}
}
function clickNav(e){
	if (!e) var e = window.event;
	if (e.target) var tg = e.target;
	else if (e.srcElement) var tg = e.srcElement;
	while (tg.nodeName != 'DIV') // Safari GRRRRRRRRRR
		tg = tg.parentNode;
	var nextSib = tg.nextSibling;
	while (nextSib.nodeType != 1){
		nextSib = nextSib.nextSibling;
	}
	var nextSibStatus = (nextSib.style.display == 'none') ? 'block' : 'none';
	if(nextSib.className == 'content') nextSib.style.display = nextSibStatus;
}
function openLabel(x){
	tg = x;
	if(tg != null){
		var nextSib = tg.nextSibling;
		while (nextSib.nodeType != 1)
			nextSib = nextSib.nextSibling;
		var nextSibStatus = (nextSib.style.display == 'none') ? 'block' : 'none';
		nextSib.style.display = nextSibStatus;
	}
}
function openMenu(cat,subs){
	openLabel(document.getElementById('portfolio'));
	openLabel(document.getElementById(cat));
	openLabel(document.getElementById(subs));
}