Is Norton blocking website ads and also flash ads that's more common now?

Hi,

 

I have just installed Norton Internet Security 2011 to test it but I'm not able to find any feature that would block website adverts which is really annoying. I realize this is a test version which is limited but i can't find anything about blocking website ads in the full version either reading the technical documentation. Is this feature even considered in your products ?

I have used Kaspersky protection for several years but thought i would test something new, Kaspersky blocks website ads, even flash ads and the commercial in internet TV clips.