title: jQGrid Column Chooser Modal Overlay
body: <p>Looking off this <a href="http://www.ok-soft-gmbh.com/jqGrid/SimpleLocalGridWithColumnChooser5.htm" rel="noreferrer"><strong>example</strong></a>, notice how clicking on the Search button brings up a modal form with a darkened overlay behind it. Now notice how clicking on the Column Chooser button brings up a modal form but no overlay behind it. </p>
  
  <p>My question is: how do I get the dark overlay to appear behind my Column Chooser popup?</p>