hover = function() {
	var nav = document.getElementById("manuNavigation");
	nav.style.zIndex = 50;
	if(nav){
		//var nodes = getElementsByClass(nav, "mainLink", "li")
		var nodes = nav.getElementsByTagName("li")
		for (var i=0; i<nodes.length; i++) {
			nodes[i].onmouseover=function() {
				this.className+="hover";
			}
			nodes[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp("hover\\b"), "");
			}
		}
	}
}

if (window.attachEvent) window.attachEvent("onload", hover);


resetZIndexes= function() {
	var nav = document.getElementById("manuNavigation").style.zIndex = 100;
        // other elements would go here
}

if (window.attachEvent) window.attachEvent("onload", resetZIndexes);


function getElementsByClass(node,searchClass,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}