function initMenu() {
	if ((window.attachEvent) || (navigator.appVersion.indexOf("Macintosh") > 0 && navigator.appVersion.indexOf("MSIE") > 0)) { 
		// Browser sniff is acceptable here since we are replacing missing css functionality in an older browser. 
		// There is no danger of future incompatibility.
		var listItems = document.getElementById("topNavBar").getElementsByTagName("li");
		for (var i = 0; i < listItems.length; i++) {
			listItems[i].onmouseover = function() {
				this.className += " over";
			};
			listItems[i].onmouseout  = function() {;
  				this.className=this.className.replace(new RegExp(" over\\b"), "");
			}
		}
	}
}