function JS(menu) {//
   nameDiv=eval("document.getElementById(menu)");
   if(nameDiv.style.display=='none')
   {
   nameDiv.style.display='';
   }
   else
   {
   nameDiv.style.display='none';
   }
}
var window_onload = window.onload;
window.onload = function() {
    if (typeof(window_onload) === "function") window_onload();
      for(i=1;i<=12;i++)
        {
          nameDiv=eval("document.getElementById('menu' + i)");
          nameDiv.style.display="none";
        }
};