isMac = (navigator.appVersion.indexOf("Mac")!=-1) ? true : false;
NS4 = (document.layers) ? true : false;
IEmac = ((document.all)&&(isMac)) ? true : false;
IE4plus = (document.all) ? true : false;
IE4 = ((document.all)&&(navigator.appVersion.indexOf("MSIE 4.")!=-1)) ? true : false;
IE5 = ((document.all)&&(navigator.appVersion.indexOf("MSIE 5.")!=-1)) ? true : false;
ver4 = (NS4 || IE4plus) ? true : false;
NS6 = (!document.layers) && ((navigator.userAgent.indexOf('Netscape')!=-1) || (navigator.userAgent.indexOf('Mozilla')!=-1) || (navigator.userAgent.indexOf('Firefox')!=-1))?true:false;

function brname(Xname){
if(IE4plus){return top.document.all[Xname];}
else if(NS4){return top.document[Xname];}
else if(NS6){return top.document.getElementById(Xname);}}

function mHide(){
ab = brname('FeedbackForm');
if(ab.style.display != 'block' || ab.style.display == undefined){ab.style.display = "block";}else{ab.style.display = "none";}
}

function _menu(){
if(document.all && document.getElementById){
navRoot = document.getElementById("Menu");
for (i=0; i<navRoot.childNodes.length; i++){
node = navRoot.childNodes[i];
if(node.nodeName == "LI"){
node.onmouseover = function(){
this.className += "Over";
}
node.onmouseout = function(){
//this.className = this.className.replace(" over", "");
this.className = "";
}}}}}

onload = _menu;