function openclose(icon,event,objid,iconclass_open,iconclass_close)
{
 	if(getTargetFromEvent(event).className == icon.className)
 	{
  		try
		{
			obj = document.getElementById(objid);
			if(obj.style.display=="none")
				icon.className = iconclass_close;			
			else
				icon.className = iconclass_open;

		 	Effect.toggle(obj, 'slide');
		}
		catch(e)
		{
			
		}
	}	
}