var browser = navigator.userAgent;
if(browser.indexOf("MSIE") > -1 && browser.indexOf("Opera") == -1) {

	window.onload = function() {

		var	menu = document.getElementById("menu");
		for (i=0; i < menu.childNodes.length; i++) {
			var node = menu.childNodes[i];
			if (node.nodeName == "LI") {
				node.onmouseover = function() {
					this.className += " over";
				},

				node.onmouseout = function() {
					this.className = this.className.replace(" over", "");
				}
			}
		}

	};

}