title: How to open image with default device image viewer in Phonegap
body: <p>Lets say my App can download images. I want that the downloaded image will be shown to the user after download has finished and the file has been written into the device.</p>
  
  <p>With this line of code the image will be displayed on the screen.</p>
  
  <pre><code>window.open('file:///path_to_image', '_system', ' ');
  </code></pre>
  
  <p>The problem is, I have not a back button. Means if the image is shown I have no chance to go back into my app view. (Until I restart the app)</p>
  
  <p>How did you solved this problem?
  Thanks.</p>