OS X :: How To Close A Window/program While In Expose Mode

I was wondering if there was a way to close windows while in expose mode. For example, I hate it when I go to a site and a few pop ups come up and i turn on expose mode and i have to click on each one and make it come up and then press exit and then reopen expose and then click on another pop up and then exit and reopen expose and etc etc... To be more specific its kind of like the new windows 7 feature where you hover your mouse over the icon at the bottom and those little windows come up (kinda like expose) but those little windows have little x's where you can just exit the window without having to click on it and then exit and then go back down to the little icon and etc etc.