Binggo!
Thanks !!!
I love this community now!
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Okay!
I will do it immediately! 
So I think even if I do this on robot.txt
I am wondering will the errors in Seomoz disappear?
Thanks again!
Fei
Thanks my friend!
So google does not index /ajax/ but seomoz is indexing?
So does this mean I do not need to care about this?
Thanks