title: Multiple item selection by pressing ctrl button
body: <p>Currently my function looks like that </p>
  
  <p><a href="http://jsfiddle.net/tt13/5CxPr/13/" rel="nofollow noreferrer">http://jsfiddle.net/tt13/5CxPr/13/</a></p>
  
  <p>as you see, now when I click one by one multiple rows, it will make them selected. </p>
  
  <p>What I want to do is, to select multiple rows by pressing ctrl+left-click and one and only selection with only one - left click (I mean remove previous selected and select last clicked one; just like windows icon selection). How can I modify current code? 
  <code></code></p>