Hyperlink onClick problem

Hi All,
I am finding problem in the onclick event of the hyperlink. The scenario is as stated below.

I am creating table from inside the program, containing information about the latest games. In each row of the table there is option to see the
1. detail of the game
2.modify the game
3.cancel the game.

for both modify and cancel i am giving hyperlink to the respective pages.

on clicking 'cancel' i am showing the confirm message. But the problem is that ones the game is modified, i am not getting the confirm message when i click on the 'cancel'. and is directly cancelling the game.

Please help in this issue.
Thanks in advance.