title: How to add custom image to a button (dojo 1.7)
body: <p>How do I add a custom image to a dojo button</p>
  
  <p>here is the sample code for button without image</p>
  
  <pre><code>&lt;div id="zoomin" data-dojo-type="dijit.form.Button"&gt;
      &lt;span&gt;zoomin&lt;/span&gt;
  &lt;/div&gt;
  </code></pre>