function MM_findObj(n, d) { //v4.0
  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 && document.getElementById) x=document.getElementById(n); return x;
}

function hideAll(submenu)
{
	if (lastOn!=null)
		MM_changeProp(lastOn,'','style.background','#0077CC');
	
	var level;
	if (submenu==null)
		level=1;
	else if (submenu=='')
	{
		if (lastLayer==thisLayer)
			level=lastLayer+1;
		else
			level=1000;
	}
	else
	{
		for (var i=0;i<menus.length;i++)
		{
			var menu=menus[i];
			if (menu==submenu)
				level=levels[i];
		}
	}
	
	for (var i=0;i<levels.length;i++)
	{
		if (levels[i]>=level)
			MM_showHideLayers(menus[i],'','hide');
	}
}

function MM_showHideLayers() { //v3.0
  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) { //v3.0
  var obj = MM_findObj(objName);
  if (obj && (theProp.indexOf("style.")==-1 || obj.style)) eval("obj."+theProp+"='"+theValue+"'");
}

function clear()
{
	counter--;
	if (counter==0)
		hideAll();
}