<div id="divTest">

    Test

   </div>

       <br />

       <hr />

       <div id="divTest2" onclick="div2Click();">

            Test2

       </div>

   </form>

</body>

</html>

<script type="text/javascript">

   function div2Click() {

       $(this).divClick();

   }

   (function ($) {

       $.fn.divClick = function () {

           alert("Test2");

       };

       $("#divTest").click(function () {

           alert("Test");

       });

   })(jQuery);

</script>