title: jQuery - After 3rd party page set value, trigger the event from main page
body: <p>Recently, I've tried to concatenate a 3rd-party subpage which will set a value for the main page text input by id. However, the main question here is: How can I trigger events like <code>onchange</code> after getting that value for the next step? The problem is the 3rd-party page. It can not be changed. Could anyone suggest a solution for this case? It is developed by JQuery.</p>
  
  <pre><code>$('#add').unbind().click(function() {
      window.open('3rd party URL'); //set value to id="temp"
  });
  
  $('#temp').change(function() {
      // do something...
  })
  </code></pre>