title: Jquery "on" when element is not initialized
body: <p>Is it possible to add triger "on" when element don't exist?
  For example I want to add "on" to button, so it would be like: (one global function for this class, so every button with class "task-details" will have onclick state when initialized)</p>
  
  <pre><code>$(".task-details").live('click', function(){/*do something*/});
  </code></pre>
  
  <p>But I want to do this event on popup which isn't exist on document ready, I made it dynamiclly, I think in older jquery .live('click',function()) whas doing it</p>