title: Jquery obscure bug
body: <p>I have button, when i click here - opened fancy box. But now, when i click first - not happened anything, when i clicked second fancy box is opened. 
  After first clicking i have this logs in console:</p>
  
  <pre><code>event.returnValue is deprecated. Please use the standard event.preventDefault()   instead. jquery-1.8.3.min.js:2
  Uncaught TypeError: Object [object Object] has no method 'multiSelect' VM1347:3
  </code></pre>
  
  <p>Look at <code>VM1347:3</code> i am not understood what is mean. This link locate to </p>
  
  <pre><code>chrome-devtools://devtools/bundled/devtools.html?dockSide=bottom&amp;toolbarColor=rgba(223,223,223,1)&amp;textColor=rgba(0,0,0,1) 
  </code></pre>
  
  <p>Code which call fancybox:</p>
  
  <pre><code>$(document.body).on('click', '.btn_green_m.create', function(event){
              event.preventDefault();
              var $self = $(this);
              $.fancybox({
                  type:'ajax',
                  href:$self.attr('link'),
                  autoWidth:true,
                  autoSize:true
              });
          });
  </code></pre>
  
  <p>And i am try to google. Some people say this is can happened when Jquery call twice. But in my project it happened once. And noConflict not help.<br>
  Thanks!</p>