//fake css :hover for ie6
if(/MSIE\s[1-6]/.test(navigator.userAgent)){
 function hoverIn(){
  this.className+=' over';
 }
 function hoverOut(){
  this.className=this.className.replace(/\s+over/,'');
 }
 var fixStarted=false;
 function fix(navRoot){//two level submenus
  if(!fixStarted){
   navRoot=document.getElementById('nav');
   fixStarted=true;
  }
  if(!navRoot || !navRoot.hasChildNodes())
   return;//halt if no nav menu found in document
  var aNode;
  for (var i=0; i<navRoot.childNodes.length; i++){
   aNode = navRoot.childNodes[i];
   if(aNode.nodeName=='LI'){
    aNode.onmouseover=hoverIn;
    aNode.onmouseout=hoverOut;
   }
   fix(aNode);//recurse
  }
 }
 window.attachEvent("onload", fix);
}