how to get dialog text box when delete link is clicked in cbuttoncolumn using php

currently I am getting the confirmation message "Are you sure want you would like to delete?" when the delete link is clicked in cButtonColumn. But I want a text dialog box for user to enter the comments for deletion then If he clicks Ok after entering comments then it should be deleted from DB.

Code:

array(

    'header'=>'Action',


    'class'=>'CButtonColumn',


    'template'=>'{AnnouncementLetter}<br/>


                    {EditAnnouncement}<br/>{SendReminder}<br/>{ViewAnnouncementSegment}<br/>{AcknowledgementFinance}<br/>{AcknowledgementSegment}<br/>{Delete}<br/><br/>'


                    /*{DeletePrf}*/


                    /*{Extend}'{AnnouncementSend}<br/>*/,


    'buttons'=>array(


            'AnnouncementLetter'=>array(


                                    'label'=>'Create Letter',


                                    'url' =>'CController::createUrl("/rebate/create", array("prfnumber"=>$data->prf_number,


                                                                                                                ))',


                                    'visible'=>'$data->nacknowledged == 0 AND (Yii::app()->user->type == 2 OR Yii::app()->user->type == 1)',


                                    //Filter User here Ops Team/Claim Team/Admin. Announcement letter checker


                                    //Show Draft letter 





                                    ),


            'AnnouncementSend'=>array(


                                    'label'=>'Send',


                                    'url' =>'CController::createUrl("/prf/mail", array("prfnumber"=>$data->prf_number))',//need to use ajax instead here


                                    'visible'=>'(Yii::app()->user->type == 1 OR Yii::app()->user->type == 2) AND 


                                    ($data->nacknowledged==1 )',


                                    ),





            'EditAnnouncement'=>array(


                                    'label'=>'Edit Letter',


                                    'url' =>'CController::createUrl("/rebate/create", array("prfnumber"=>$data->prf_number,


                                                                                                                ))',


                                    'visible'=>'($data->nacknowledged==1 OR $data->nacknowledged==5) AND (Yii::app()->user->type == 2 OR Yii::app()->user->type == 1)',





                                    ),


            'SendReminder'=>array(


                                    'label'=>'Send Reminder',


                                    'url'=>'CController::createUrl("/prf/ReminderMail", array("prfnumber"=>$data->prf_number))',


                                    'visible'=>'(Yii::app()->user->type == 1|| Yii::app()->user->type==2) && ($data->nacknowledged==3 OR $data->nacknowledged == 2)',


                                        'options'=>array('ajax'=>


                                                            array('success'=>'js:function(){alert("Reminder Sent")}',


                                                                    'url'=>'js:$(this).attr("href")')),             





                                    ),


            'ViewAnnouncementSegment'=>array(


                                        'label'=>'View Announcement',


                                        'url'=>'CController::createUrl("/annletter/segmentAcknowledge", array("prfnumber"=>$data->prf_number))',


                                        'visible'=>'(Yii::app()->user->type == 1 OR Yii::app()->user->type != 5) && ($data->nacknowledged==4 OR $data->nacknowledged==4)',





                                                        ),


            'AcknowledgementFinance'=>array(


                                        'label'=>'Acknowledge',


                                        'url'=>'CController::createUrl("/annletter/segmentAcknowledge", array("prfnumber"=>$data->prf_number))',


                                        'visible'=>'(Yii::app()->user->type == 1 OR Yii::app()->user->type==6) && ($data->nacknowledged==2)',





                                                    ),


            'AcknowledgementSegment'=>array(


                                        'label'=>'Acknowledge',


                                        'url'=>'CController::createUrl("/annletter/segmentAcknowledge", array("prfnumber"=>$data->prf_number))',


                                        'visible'=>'(Yii::app()->user->type == 1 OR  Yii::app()->user->type==4) && ($data->nacknowledged==3)',





                                                    ),


            'Delete'=>array(


                'label'=>'Delete',


                'url'=>'CController::createUrl("/prf/deleteRecord", array("prfnumber"=>$data->prf_number))',


                'visible'=>'(Yii::app()->user->type == 6 AND $data->nacknowledged==4) OR Yii::app()->user->type == 1 ',





                        'options'=>array(


                                                'confirm'=>'Are you sure you would like to delete?',

/* ‘ajax’=>array(‘success’=>‘js:function(){alert(“PRF Deleted”)}’,

                                                                    'url'=>'js:$(this).attr("href")')*/),





                            ),


            /*'DeletePrf'=>array(


                'label'=>'Delete',


                'url'=>'CController::createUrl("/prf/silentDelete", array("prfnumber"=>$data->prf_number))',


                'visible'=>'(Yii::app()->user->type == 6 AND $data->nacknowledged != 4) OR Yii::app()->user->type == 1 ',





                        'options'=>array(


                                                'confirm'=>'Are you sure you would like to delete?',

/* ‘ajax’=>array(‘success’=>‘js:function(){alert(“PRF Deleted”)}’,

                                                                    'url'=>'js:$(this).attr("href")')),





                            ),*/





            ),


),

),

));