function linksql2($db_ip,$db_us,$db_ps,$database){	global $HOST;	if(@$_SERVER['SERVER_NAME']=='.duapp.com'||@$_SERVER['SERVER_NAME']=='vip..duapp.com')	{		$HOST ='LineServer';	    $id=mysql_connect('..com:4050','','');	    mysql_select_db('',$id);		}	else	{		$HOST='LocalHost';		$id=mysql_connect($db_ip,$db_us,$db_ps);    	mysql_select_db($database,$id);	}    mysql_query('SET NAMES UTF8');    return $id;}