Yes, i tried that also...
There will be a new window opened, however... Firefox than says that the page is not redirected correctly, and the counter increases with 21 !!!
I just dont see how to go to another page when the ?click = yes.
Edit:
When using the target="_blank", the new window is called:
http://www.mydomain/test.php?click=yes
Edit 2:
Lets say for test that the new page has to be google.com. <a href="http://www.google.com">