Tic Tac Toe challenge.... now with updates!

Celine beat Hulk yesterday, so I had to make some adjustments. 
She also said it was not IE6 friendly, so I fixed that as well. 
I have to say, indexOf is a very handy function, 
however it was not supported until IE9, so I had to implement 
my own indexOf type function. 

I cancelled the previous pull request and created this one, 
I am just trying to do a good job here. 

Thank you for your time. 


Adrian Thiele