Remove Message from webpage from the browser Confirmation Box using JavaScript

this is done using

<script type="text/javascript">
    function ConfirmationBox(id)
 {
       var result = confirm('Are you sure you want to delete');
        if (result)
       {
            return true;
        }
        else
         {
            return false;
          }
}
</script>

is there anyway we can remove "Message from webpage" written on title of this confirmation box?