Trap The Shift+click Event Of A DIV Works In IE And Chrome But Not In Firefox?

I am trying to trap the shift+click event of a DIV. Works in IE and Chrome but not in Firefox. Purpose of the code: The DIV provides a hidden link (no decoration) for an editor who wants to edit content. The DIV ignores a simple click (meaning a click without a combination of the shift key) to avoid accidental access to the casual surfer. Here is the logic of the code: DIV is clicked. call function to check for the shift key being depressed if the shift key were depressed during the "click", initiate access. If the shift key were not depressed, ignore the "click" Here is the HTML code:

[Code]...