function IEHoverPseudo() {

	var navItems = document.getElementById("menucss").getElementsByTagName("li");
	
	for (var i=0; i<navItems.length; i++) {
			navItems[i].onmouseover=function() { this.oldClass = this.className; this.className += " over"; }
			navItems[i].onmouseout=function() { this.className = this.oldClass; }
	}

}
window.onload = IEHoverPseudo;