title: Capturing Rails 3 Multiselect Input Params
body: <p>I have a multiselect form control (fig. 1). When I select more than 1 value, Firefox sends both values (fig. 2). But only the last value gets sent as a input value to my controller (fig. 3). How do I get all those values passed on to my controller? </p>
  
  <pre><code>  &lt;form action="html_items/search" method="post" &gt;
  
      &lt;!-- Criteria --&gt; 
      &lt;div style="float:none;"&gt;
        &lt;label&gt;Content Provider &lt;/label&gt;
        &lt;select multiple id="content_provider" name="content_provider"&gt;
          &lt;option value="FLR"&gt;Flare&lt;/option&gt;
          &lt;option value="SLDT"&gt;Slashdot&lt;/option&gt;
        &lt;/select&gt;
      &lt;/div&gt;
  
      &lt;input type="submit" value="Search" /&gt;
  
    &lt;/form&gt;
  </code></pre>
  
  <p>fig. 1</p>
  
  <p>Parametersapplication/x-www-form-urlencoded<br/> 
  content_provider            FLR<br/> 
  content_provider            SLDT<br/> 
  fig. 2 <br/> 
  <br/> </p>
  
  <p>PARAMs[{"content_provider"=>"SLDT", "controller"=>"html_items", "action"=>"search"}]<br/> 
  ...<br/> 
  fig. 3 <br/> 
  <br/> </p>
  
  <p>Thanks <br/> 
  Tim</p>