title: how do you get the rails image path when you don't want to use an image tag
body: <p>I'm using slimbox2 with rails. To make it work you include some markup as follows:</p>
  
  <pre><code>&lt;a href="resources/images/weight1.jpg" rel="lightbox-a" title="Beautiful, isn't it?"&gt;a&lt;/a&gt; 
  
  &lt;a href="resources/images/example.jpg" rel="lightbox-a" title="Beautiful, isn't it?"&gt;a&lt;/a&gt;
  </code></pre>
  
  <p>So I'm wondering, how do you grab the location of the image to place in the href?  Relative addressing?  Is their a helper that is useful in this situation?</p>