function Exists($iType = DCL_ENTITY_GLOBAL, $iID = 0, $iID2 = 0, $sName = 'FrontPage')
 {
     if ($iType != DCL_ENTITY_WORKORDER) {
         $iID2 = 0;
     }
     return parent::Exists(array('dcl_entity_type_id' => $iType, 'dcl_entity_id' => $iID, 'dcl_entity_id2' => $iID2, 'page_name' => $sName));
 }