showMyMenuMain = function() {
	var mySubMenusMain = document.getElementById("navMain").getElementsByTagName("LI");
	for (var i=0; i<mySubMenusMain.length; i++) {
		mySubMenusMain[i].onmouseover=function() {
			this.className+=" showMyMenuMain";
		}
		mySubMenusMain[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" showMyMenuMain\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", showMyMenuMain);