The 'Push-Pull' menu uses a pull up action to pull the dropline into view when hovering the top level links and then a push down action to keep it in view when hovering the dropline links.
This does mean that the menu can be tabbed in all browsers that accept keyboard tabbing.
Tested and works in IE5.01, IE5.5, IE6, IE7, IE8, Firefox, Opera, Safari (PC) and Google Chrome, should also work in all Mac browsers and probably many of the older browsers.
Now to see how far this system can be taken.
Note that this method is totally different to the new dropdown menu system which uses float drops.
15th January 2010
Tabbing now works in all browsers but IE8 is still not quite there yet.
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