Are we talking about a Flash ad that's running Javascript? Or are we talking about actually clicking on ad, which one shouldn't do? Again, wouldn't NoScript block this?
Yeah, probably. I kind of wish I was using Firefox instead of Google Chrome, because it has plug ins to remove ads and block scripts.
On Google Chrome, Avast! is my only protection

Not that I ever plan on going there again.
I thought TSR were the lowest of the low, but now they're even lower.