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';
		}
	}
}