title: jqGrid frozen header
body: <p>We use latest version of free-jqgrid.</p>
  
  <p>We want to make for all our grids fixed (frozen) header: verticall scrollbar insided the grid, which scrolls only the content.</p>
  
  <p>As I know, this can be achieved using fixed grid's height, but it would be great to have the height fit to user's screen height. (May be we should change the size on page load somehow?)</p>
  
  <p>What is the best way to implement this?</p>
  
  <p>Example: <a href="https://jsfiddle.net/qrxkuvfz/1/" rel="nofollow noreferrer">https://jsfiddle.net/qrxkuvfz/1/</a></p>
  
  <p>Setting <code>width: 400</code> does bad job.
  I just want the scroll to be inside the grid. And height - max available.</p>