php - YiinfiniteScroller pagination repeated rows -

i using yii yiinfinitescroller. there 260 records. have displayed 12 records per page. loads first 12 records correctly. when scroll page, loads same 12 records (duplicate) , repeats continuously when scrolling 12 records repeated every time

here code view page

<?php                     $this->widget('ext.yiinfinite-scroll.yiinfinitescroller', array(                     'contentselector' => '#load_addcont',                     'itemselector' => 'ul.wlist',                     'loadingtext' => 'loading next 12 rows...',                     'donetext' => 'loading finish.',                     'pages' => $pages,                     ));                   ?> 

here code controller site

$pages = new cpagination($row_count);              $pages->setpagesize(12);             $pages->applylimit($criteria);              $wineries = wineries::model()->findall($criteria);             $flags = array();  yii::log("pagination wineries row_count = $row_count page # = " . $pages->getcurrentpage(), 'error', 'actionselectwineries.end'); yii::log("pagination wineries = " . cvardumper::dumpasstring($_get), 'error', 'actionselectwineries.end'); 

what problem? why same records repeating? pls me if know