function showimage()
   {
      if (!document.images)
         return
      document.images.avatar.src= 'images/avatar/' + document.Register.user_avatar.options[document.Register.user_avatar.selectedIndex].value
   }
   

   function openWithSelfMain(url,name,width,height)
   {
	  var options = "width=" + width + ",height=" + height + "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no";
	  new_window = window.open(url, name, options);
	  window.name = "main";
	  new_window.focus();
   }