// Use this to change the "redirect to url" parameteradd_filter('asp_redirect_url','asp_add_params_to_url',1,10);// Use this to change the "show more results url" parameteradd_filter('asp_show_more_url','asp_add_params_to_url',1,10);functionasp_add_params_to_url( $url ) {// Array of param names and values $values =array("param1"=>"value1","param2"=>"value2","param3"=>"value3" );// Merge them togetherforeach ( $values as $k => $v ) $url .="&".$k."=".$v;return $url;}