function menu() {
	if(document.all && document.getElementById) {
		var navRoot = document.getElementById("navigation-items");
		for(i=0;i<navRoot.childNodes.length;i++) {
			var node = navRoot.childNodes[i];
			if(node.nodeName == "LI") {
				node.onmouseover=function() {
					this.className += " over";
				}
				node.onmouseout=function() {
					this.className = this.className.replace(" over", "");
				}
			}
		}
	}
}