SO fiddle

Test Fiddle mainly for SO Questions

by Nick Craver

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/overcast/jquery-ui.css">
<div>Test</div>

JavaScript

$.widget("ui.ImageLibrary", $.ui.dialog, {
   options: {
    title:'Choose Image',
    buttons:{
      "Ok":function(){
        $.data(this, "ImageLibrary")._somePrivateFunction.call(this);
      },
      "Close":function(){
        $(this).ImageLibrary("close");
      }    
    }
  },
  _somePrivateFunction: function(){
    alert("test");
  }
});
$(function() {
  $("div").ImageLibrary();
});