title: Getting only x or y position from sprite in compass?
body: <p>If I use </p>
  
  <pre><code>@import "icon/*.png";
  @include all-icon-sprites;
  </code></pre>
  
  <p>I can use </p>
  
  <pre><code>background-position: sprite-position($icon, foobar);
  </code></pre>
  
  <p>to get the xy position of the foobar-icon.
  Is it possible to get only the x or y value within the sprite?</p>