/*
 *
 *   Common web site interface Javascript routines
 *   Simos kordas
 *   
 */
 
 
function isEmpty(text)
{
   if (text==null || text.length==0)
       return true;
   else
       return false;
} 
 
function ShowHide(id)
{
   var item_id=document.getElementById(id);
   if(item_id.style.display=="block")
       item_id.style.display="none";
   else
       item_id.style.display="block";
}