Mind Reader

[PC-GUY]

If anyone figures this out, please let me know how it's done.
http://www.dslextreme.com/users/exstatica/psychic.swf

 

[joe14580]

It knows because you moved your cursor over the correct answer, if you don't it's clueless.

 

[anaconda]

actually that is wrong cause i did not even move my mouse and it still got my symbol!

 

[Thunder Bolt]

It's got me baffled ???

 

[LTR12101B]

You really want to know? Ok!
A 2 digit number, minus it's digit sum, always works out to a multiple of 9 - now look closely at the chart!