function open_document(p_table, p_key, p_id)
	{
	url="./document.php?table="+p_table+
	                  "&key="+p_key+
					  "&id="+p_id;
    setting="menubar=no,toolbar=no,location=no,scrollbars=no,status=no,resizable=no,fullscreen=no";
	window.open(url,'',setting);
}