function toggleDisplay(id){
   var e = document.getElementById(id);
   var show = e.style.display == 'none';
   if (!e)
      return;

   if (show){ 
      e.style.display='block';
   }
   else {
      e.style.display='none';
   }
}

function doScroll(){
   if (window.name) 
      window.scrollTo(0, window.name);
}
function setScroll(){
   if (navigator.appName == 'Microsoft Internet Explorer'){
      window.name=document.body.scrollTop;
   }
   else {
      window.name=window.pageYOffset;
   }
}