title: Input events in form from ajax request
body: <p>A user can click on a button and jQuery will make an ajax request to the server, which will return a form. My problem is, that the form elements like file input or checkboxes lose their default events. I can't check/uncheck the checkbox and the input won't open a file dialog anymore.</p>
  
  <p>Is there any way I can reassign these events to the elements?</p>
  
  <p>I'm not talking about events I wrote myself. Do the standard events have a specific name in jQuery, so I can use .on()?</p>