Change The Label Of Submit Button After Ajax Updating The Record In Db

hi friends can anyone tell me how can i Chang the label of submit button after ajax submitting record in db in yii cgridview

here is my button code




'btn2' =>array(

                         'class'=>'CButtonColumn',

                         'template' => '{AjaxUpdate}',

                         'buttons'=>array

                         (

                                 'AjaxUpdate' => array

                                 (

                                         'label'=>'AjaxUpdate',

                                         'imageUrl'=>Yii::app()->request->baseUrl.'/images/update.png',  // make sure you have an image

                                         'url'=>'Yii::app()->createUrl("Tasks/AjaxUpdate", array("id"=>$data->id))',

                                         'options' => array( 'ajax' => array('type' => 'get', 'url'=>'js:$(this).attr("href")', 'success' => 'js:function(data) { $.fn.yiiGridView.update("tasks-grid")}')),


                                 ),

                         ),

                )




or tell me alternative of this.

thanks.