title: Checkbox click event not fired
body: <p>I got this js (also tried "change" with same result)</p>
  
  <pre><code>$("input[class='tag-checkbox']").live("click",function(){
      var thisCheck = $(this);
      if (thischeck.is (':checked')){
          var tag = $(this).val();
          $("#tag-field").val(tag);
          return false;
      }
  });
  </code></pre>
  
  <p>which should set the value of this checkbox</p>
  
  <pre><code>&lt;input class="tag-checkbox" type="checkbox" name="tag[]" value="' . $value['name'] . '" /&gt;
  </code></pre>
  
  <p>into this textfield</p>
  
  <pre><code>&lt;input id="tag-field" type="text" name="product-tag" /&gt;
  </code></pre>
  
  <p>But the event is not fired and the textfield is unchanged. I have no error messages so is something wrong with the script?</p>