I am sorry that I have asked by mistake ! I go to the link again!!! Thank you all very much. Jeff Fan No change is the worst!!! The principal of mine msn:fyr000000@hotmail.com If you like coding , add me.

I have known why , if somebody want to know , can go to this link http://www.codeguru.com/forum/showthread.php?t=384592 Jeff Fan No change is the worst!!! The principal of mine msn:fyr000000@hotmail.com If you like coding , add me.