function openClose(id)
{
   if(document.getElementById) {
      element = document.getElementById(id);
	 
   } else if(document.all) {
      element = document.all[id];
   } else return;

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