如何在yii中调用cmultifileupload的id

Question

在Cmultiplefileupload小部件中我想调用我自己的js函数并想要跟踪小部件id的id

   <script>
function inc_id(x)
{
    alert(x);

}   
  </script>

$this->widget('CMultiFileUpload', array(
        'name' => 'LeadRecommendations[docs_name][]',
        'id'=>'LeadRecommendations_docs_name',
        'model'=>$test,
        'accept' => 'jpeg|jpg|gif|png|pdf|doc|docx|odt|txt|xlsx|xls|csv|zip', // useful for verifying files
        //'duplicate' => 'Duplicate!', // useful, i think
        'denied' => 'Invalid file type', // useful, i think
        'remove'=>'[x]',
         'options'=>array(


        'afterFileSelect'=>'function(e, v, m){ inc_id(this.id) }',

 ),

但它给结果未定义我如何在我的函数中获得这个小部件的id