Checking all radio buttons selected in JQuery and JSP, Struts

Question

I am fairly new to jquery and I am working with jsp and struts .as part of the application I have a survey form with a number of categories each with different set of questions, and each question with a number of possible answers to pick from as radio buttons. I want the user to be required to pick one answer for each question in each category before submitting the form and to give an error if they don't.

<s:iterator value="quelists">
<tr class="radioList">
<td>
<s:property  value="surveyQuestion"/><span id="msg_selectError"/> 
</td>

<td >
<s:iterator value="answerslists" status="status">
<s:radio  value="selectedAnswers[%{#count}]"  
          name="selectedAnswers[%{#count}]"  
          list="#{id:answer}"  required="true" theme="simple"/>
</s:iterator>
</td>

<s:set var="count" value="#count+1"/>    
</tr>
</s:iterator> 

Answer 1

I am just learning.. It work: http://jsfiddle.net/WDfXq/2/

function isCheck() {
    var isOk = true;
    $('.radioList').each(function(){
         var countChecked = $(this).find(':checked').length;

         if(countChecked!=1) {
             $(this).css('color', 'red');
             isOk = false;
         } else {
             $(this).css('color', 'black');
         }
    }); 
    return isOk;
}