title: Use custom id for check_box_tag in Rails
body: <p>How do you set a custom id when using a check_box_tag helper in rails?</p>
  
  <p>I have a loop which creates a bunch of checkboxes based on a collection:</p>
  
  <pre><code>- subject.syllabus_references.each do |sr|
        = check_box_tag 'question[syllabus_reference]', sr.id, :id =&gt; sr.id
        = label_tag sr.id, sr.name
  </code></pre>
  
  <p>I would like to set a custom id so that my Label for the checkbox works correctly but I can't seem to figure out how (:id => sr.id does not work...). </p>
  
  <p>The problem might also be with the way I've defined the label, so if I can get that to reference the correct check box without setting a custom id then that would be fine also...</p>