document.observe("dom:loaded", function() {
	if (document.all&&document.getElementById) {
		navRoot = $('nav');
		var navChildren = navRoot.childElements();
		
		for (i=0; i<navChildren.length; i++) {
			node = navChildren[i];
			if (node.childElements().length >= 2)
			{
				if (node.nodeName=="LI") {
					node.onmouseover=function() {
						this.className+=" over";
					}
					node.onmouseout=function() {
						this.className=this.className.replace(" over", "");
					}
				} //if
			}
		} //for
	} //if
});