[jQuery] Expanding or contracting on resize?

[Cincinatus]

Is there a way to tell if the user is expanding or contracting the
window when resizing even if he changes directions during the same
event?

[jQuery] IE not recognizing my scripts.

[Cincinatus]

I am new to jquery and javascript. I am working on a user interface
for a web app. Everything works great in Safari, Firefox, Chrome etc.
But nothing works in IE. It's as though IE doesn't even recognize my
scripts. I can't figure it out. Necessary links below.

Test Site:
http://www.divinefiat.com/Invoice/

Scripts:
http://www.divinefiat.com/Invoice/scripts/resize.js
http://www.divinefiat.com/Invoice/scripts/selection.js
http://www.divinefiat.com/Invoice/scripts/tabs.js

Any help would be appreciated.