ClodZoom method not working

ClodZoom method not working

Hi,
In my Asp.net Application i use Cloud-zoom.1.0.2(js) jquery file.
 In jquery ready function is call CloudZoom method  it is working.

function ($) { 

    $(document).ready(function () {      
        $('.cloud-zoom, .cloud-zoom-gallery').CloudZoom();    // It is working
    });  
   
    function CloudZoom(jWin, opts) {
      // some code here
}
})(jQuery);


But In our client side javascript function it call same method it don't work. How to solve this problem
 
  function ImageChange(src) {           

            jQuery('.cloud-zoom,.cloud-zoom-gallery').CloudZoom();   // It is not work
}

The Error is:  "Microsoft JScript runtime error: Object doesn't support property or method 'CloudZoom'"

Thanks & Regrds,
Magesh R.