function IFrameStart() {

          var URL = location.search;
          var URL = URL.substring(1,URL.length);

          if(URL)
          iFrame.location.href = URL;

          else
          iFrame.location.href = 'content_php/start.php';
   }                                                        

   if (self.location.href != top.location.href) { 		
 	        parent.location.href=self.location.href;
   }