call function in jquery plugin from iframe

Question

How do i call a JQuery plugin function from within an iframe?

 (function($){

         $.fn.jqueryEx = function() {

               function CallThisFunctionFromIframe(){
               }

         }



 })(jQuery);

Edit

The iframe is on the same domain as parent document.

Answer 1

(function($){

     $.fn.jqueryEx = function() {


         $.fn.jqueryEx .CallThisFunctionFromIframe= function() {

             alert('hello');

         }  

     }


 })(jQuery);

Call this from within the iframe

 $(document).ready(function() {

     window.parent.$.fn.jqueryEx.CallThisFunctionFromIframe();

 });