title: what is the key code for shift+tab?
body: <p>I am working on key mapping. The problem is that when I press the TAB button down it navigates to the next input field.</p>
  
  <blockquote>
    <p>TAB has key of 9 and<br/>
    DOWN has key of 40</p>
  </blockquote>
  
  <p>But, what is the JavaScript key code to go to the previous input field (SHIFT + TAB)?</p>
  
  <p>What I want is to go to next link; what is keycode or code for the previous link?</p>
  
  <p>Please help.
  Thanks.</p>