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How to detect if shift key is pressed when clicking on a link by bustell
Posted: 27 Feb 04

Here is a little something that I have used to detect if the shift key is pressed while a user is clicking on a link.  

I used it for resorting a table by invoking the resort function through the onclick event of <a> tag like this:

onclick="resort("fieldName","DESC");return false;"

Here is the code:

<body  onKeyDown="aKeyDown();" onKeyUp="aKeyUp();">    
  <Script language="javascript">
    var shiftPressed;
    shiftPressed = false;

    function aKeyDown(e) {
      e=window.event;
      if (e.keyCode==16) {shiftPressed=true;}
    }

    function aKeyUp(e) {
      e=window.event;
      if (e.keyCode==16) {shiftPressed=false;}
    }

    function resort(fieldName, direction) {
      if (shiftPressed) {
        //Do this if shift is pressed
      }
      else {
        //Do this if shift is not pressed
      }

      document.forms.viewInfo.submit();
    }

  </script>

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