function containsDOM (container, containee) {
	var isParent = false;
	do {
		if ((isParent = container == containee))
		break;
		containee = containee.parentNode;
	}
	while (containee != null);
	return isParent;
}

function checkMouseEnter (element, evt) {
	if (element.contains && evt.fromElement) {
		return !element.contains(evt.fromElement);
	}
	else if (evt.relatedTarget) {
		return !containsDOM(element, evt.relatedTarget);
	}
}

function checkMouseLeave (element, evt) {
	if (element.contains && evt.toElement) {
		return !element.contains(evt.toElement);
	}
	else if (evt.relatedTarget) {
		return !containsDOM(element, evt.relatedTarget);
	}
}

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_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function changeStyle (what , how) {
  	what.className = how;
}

function changeStyle2 (what , how) {
  	document.getElementById(what).className = how;
}

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 HideAllLayers() {
//LET OP! HideSubLayers() altijd aanpassen naar de juiste DP benamingen staan, deze word samengesteld vanuit de code.
//vb: HideSubLayers_357();
//Deze neemt ook de SUBSUB layers mee.
//OOK alle overige HOOFDLAYERS hierinzetten

	MM_showHideLayers('menu_home','','hide');
	MM_showHideLayers('menu_over','','hide');

	//HideSubLayers_358();
	//HideSubLayers_359();
}