//main menu
function menuFix(id) {
	var obj = document.getElementById(id).getElementsByTagName("li");
	for (var i=0; i<obj.length; i++) {
		obj[i].onmouseover=function() {
			this.className+=(this.className.length>0? " ": "") + "hover";
		}
		obj[i].onMouseDown=function() {
			this.className+=(this.className.length>0? " ": "") + "hover";
		}
		obj[i].onMouseUp=function() {
			this.className+=(this.className.length>0? " ": "") + "hover";
		}
		obj[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp("( ?|^)hover\\b"),"");
		}
	}
}
menuFix('menu');