title: Problem with .focus() in web for iPhone
body: <p>I´m having a problem with the jQuery .focus() function on a web page for iPhone. I have four inputs, when one input reach the maximun of 4 characters the focus have to move to the next input.
  This is the code.</p>
  
  <pre><code>&lt;input type="password" name="cc_number_1" id="cc_number_1" onkeyup="checkCC1()" maxlength="4"&gt;
  &lt;input type="password" name="cc_number_2" id="cc_number_2" maxlength="4"&gt;
  
  
  function checkCC1()
  {
     if($('#cc_number_1').val().length == 4)
     {
        $('#cc_number_2').focus();
     }
  }
  </code></pre>
  
  <p>The problem is that <code>$('#cc_number_2').focus()</code> is not working, the focus doesn´t move to the next input.</p>
  
  <p>What i´m doing wrong??</p>
  
  <p>Thanks!!</p>