title: hidden field value using javascript/ jquery
body: <p>I have a page where I am loading a another page and a js file. The child page has a hidden field</p>
  
  <pre><code> &lt;input type="hidden" name="eventOk" id="eventOk" value="" /&gt;
  </code></pre>
  
  <p>This child page has a an event which is setting value of this variable:</p>
  
  <pre><code>function onEndClientCallBack(sender, eventArgs) {              
              $('#eventOk').val('5')
              alert('1 value is' + $('#eventOk').val());        
          }
  </code></pre>
  
  <p>The alert is showing that value is set properly. Now I want to use this value inside the js file which is loaded in the frame but when I alert the value it shows blank value. how can I set the value in aspx page and use in js file ?</p>
  
  <p>Please suggest. Thanks.</p>