function HideShow(id)
 {
     var v=document.getElementById("Menu"+id).style.display;
  if(v=="none")
  {

     document.getElementById("Menu"+id).style.display="";
     document.getElementById("cd"+id).background="images/about_menu_bg1.jpg";
  }else{
   
  document.getElementById("Menu"+id).style.display="none";
   document.getElementById("cd"+id).background="";
  }
  return false;
 }
function mouseOver(id)
{
document.getElementById('menu_bg'+id).background="images/menu_bg1.jpg";
//document.getElementById('menu_bg'+id).background="666666";

}
function mouseOut(id)
{
document.getElementById('menu_bg'+id).background ="";
//document.getElementById('menu_bg'+id).background="";

}