TweenMenu javascript

lessons learned:

• Working with jQuery is pretty fast and intuitive, but it requires some attention when it comes to effect stacking and locks, timeouts.
• Html is what it is: easy to modify, very flexible, yet browser quirks make our lives much harder:
• On webkit (I tested with Safari and Chrome) the initial left (position().left) and width (.width()) detection doesn't work. It's not "my" fault, but clientLeft/offsetLeft gives back useless garbage (also tried with PPK's workaround). EDIT: moving the css before all the scripts does help, like it is said in the jQuery documentation.
• Movement can be laggy on FF2 and IE6 (nothing new, move along).
• Since I'm using a single item buffer (not a stack) for storing the previous item some items may remain active if the mouse movement is slow enough. Adding a lock and a queue would probably help, but again, it's an overkill for such an experiment.