title: How to save image to hard disk without opening in new window
body: <p>I have a link that leads to an image.</p>
  
  <pre><code> &lt;a href="/images/foo.png"&gt;
       &lt;img src="/images/thumbnails/foo.png" width="27" height="25" align="absmiddle"/&gt;
   &lt;/a&gt;
  </code></pre>
  
  <p>How can I force a browser to save the image (like what happens when you right click a link and choose "Save As") instead of opening the image in the current window/tab?</p>