title: JQuery Not Being Parsed For Only Certain Users Even Though JavaScript Enabled in Browsers
body: <p>I have a test system with a dozen test users.  The system is built on the Zend Framework using PHP5 and JQuery.  About 3 of the dozen users are having a problem with the login page; when they click the button nothing happens. This problem occurs in Firefox and Chrome. </p>
  
  <p>The normal process flow is that when the login submit button is clicked, a light validation happens for username and password and then the login form is submitted:</p>
  
  <pre><code>//Submits form
  $('#login_btn').live('click', function() {
  
      var uname = $('#form_30296_userid').val();
      var pw = $('#form_30296_userpwd').val();
  
      if(uname == '' || pw == '')
          alert('You must enter a valid username and password.');
      else
          $("form").submit(); 
  });
  </code></pre>
  
  <p>I've confirmed it's not an obvious code issue, as this works just fine for all other users.</p>
  
  <p>Here are the steps I have taken so far:</p>
  
  <ol>
  <li>Added a test alert [alert('!')] before any other events happen for
  onclick event. </li>
  <li>Created a notice that will appear if a user does not have JavaScript enabled in their browsers</li>
  <li>Personally verified that JavaScript was enabled in Firefox and
  Chrome for users with issues.</li>
  </ol>
  
  <p>I personally logged into the users' system and did not see the JS notice and made sure JS was enabled,  but when I tried clicking the button I did not seven see the test "!" pop up.</p>
  
  <p>Any idea what's going on here?  JavaScript is enabled, so is it a matter of their browsers not being able to actually parse it for some reason.  I was wondering if perhaps these users have not been updating their Java runtime settings and if that is effecting their browsers.  Really, I'm at a loss here.  Any help is greatly appreciated.</p>