Set a radio button in a fieldset?

Set a radio button in a fieldset?

All...

On my JSP register page, I have a password entry field, and "Male" "Female" radio buttons.
They are set up to display side by side.

<div align="center">
   <div style="width:300px;">       
<fieldset class="ui-grid-a" style="height:75px;">

<div class="ui-block-a" style="padding-top:10px;">
      <label for="registerPassword">Password</label>
      <input type="password" name="usrPassword" id="registerPassword"   autocapitalize="none" style="width:145px;" value="${requestScope.usrPassword}" />
</div>

<div class="ui-block-b"  >
     <fieldset data-role="controlgroup" data-mini="true" data-type="horizontal"  style="padding-top:39px; padding-left:20px;">
                       
 <input type="radio" data-theme="a" name="usrGender" id="registerMale" value="male" />
  <label for="registerMale">Male</label>
          
  <input type="radio"  data-theme="a" name="usrGender" id="registerFemale" value="female" />
  <label for="registerFemale">Female</label>
      </fieldset>
</div> 
    
</fieldset>
</div>


If the form is submitted with errors, I want the page to refresh with the radio button that was chosen to again be selected.

In the response, I am returning the value of the selected radio button. 
I use Java to process the request variable, and call Javascript to set the radio button...

<c:choose>
<c:when test="${requestScope.usrGender == 'male'}">
 <script type="text/javascript">
    alert("here");
       $('input:radio[name="usrGender"]').filter('[value="male"]').prop('checked', true);
</script>

</c:when>
<c:when test="${requestScope.usrGender == 'female'}">
<script type="text/javascript">
       $('input:radio[name="usrGender"]').filter('[value="female"]').prop('checked', true);
</script>
</c:when>
</c:choose>


Everything works fine except for setting the radio button.
I have an alert that displays "here" when the "male" button value is returned.
So I know that the code is getting to that point.

I must not be properly setting the radio button.
Am I not properly finding it in the fieldset?