title: Rails 3 - select_tag helper - Blank option tag
body: <p>I have a select_tag populated from a @users array that I'm using to perform searches. When the user first lands on the page, I'd like it to display a blank or custom  tag, rather than the first item in the array?</p>
  
  <p>Is this an option using the select_tag helper? To insert a blank "" option?</p>
  
  <p>My helper so far:</p>
  
  <pre><code>&lt;%= select_tag :search_user, options_from_collection_for_select(@users, "id", "name"), :class =&gt; 'submittable'%&gt; 
  </code></pre>