function showMenu(id){
 var e=document.getElementById(id);
 var ul= e.getElementsByTagName("ul");
 ul[0].style.display = "block";
}

function hideMenu(id){
 var e=document.getElementById(id);
 var ul= e.getElementsByTagName("ul");
 for(var i=0;i<ul.length;i++){
  ul[i].style.display = "none";
 }
}

function goodBrowser(id){
 if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)){ //test for Microsoft Internet Explorer version x.x;
 var v=new Number(RegExp.$1) // capture x.x portion and store as a number
 if (v<7) // version is less than 7
  var e=document.getElementById(id); //get the element
  var ul= e.getElementsByTagName("ul"); //find all of the ul(s) in the element
  for(var i=0;i<ul.length;i++){
   ul[i].style.backgroundImage = "none"; //remove the background image from the ul(s)
  }
 }
}