title: Radio buttons (with uppercase 'type' in the HTML) in Watir Firefox Webdriver
body: <p>I use Firefox 4 with Watir Webdriver.
  I have a web page with the following:</p>
  
  <pre><code>&lt;input id="RadioM" type="RADIO" value="M" name="Field_SEX"&gt;Male
  &lt;input id="RadioF" type="RADIO" value="F" name="Field_SEX"&gt;Female
  </code></pre>
  
  <p>These really seem standard radio buttons to me.
  My Watir code:</p>
  
  <pre><code>browser.radio( :id , "RadioM" ).set
  </code></pre>
  
  <p>The error message is:</p>
  
  <pre><code>C:/Program Files/Ruby192/lib/ruby/gems/1.9.1/gems/watir-webdriver-0.2.1/lib/watir-webdriver/elements/element.rb:241:in `ass
  ert_exists': unable to locate element, using {:id=&gt;"RadioM", :tag_name=&gt;"input", :type=&gt;"radio"} (Watir::Exception::Unknown
  ObjectException)
          from C:/Program Files/Ruby192/lib/ruby/gems/1.9.1/gems/watir-webdriver-0.2.1/lib/watir-webdriver/elements/radio.rb:
  9:in `set'
          from I:/watir/one.rb:22:in `&lt;main&gt;'
  </code></pre>
  
  <p>What happens?</p>