JavaScript Undefined Function

Hi

I require some help with my JavaScript - I trying to learn Web development along with Java Script by watching some JavaScript videos on Channel9 (JavaScript for Absolute Beginners - Bob Tabor).
While everything works just fine in the demonstration videos I run into problems when I enter and execute the same code (I believe to be the same code) on my computer.
Using the IE9 - F12 Developer Tools  it keep telling me I'm either missing a ';'  and/or my Function is undefined - see attached files.
I've checked and double checked my code against what is presented in the training videos but I can't spot what I'm doing wrong.
My computer is running under Vista and I have IE9 installed.
The video demonstartion JavaScript code is very simple and basic but I can't seem to get beyond square 1.
Any help would be much appreciated.
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