How to include or exclude strings?

Hi guys,

I have following task in front of me and I really don't know where should I start.

In a HTML form I have two input boxes for urls:

URL Filter
Include:
Exclude:

The task is as follow:
Include google - will include all the domains with "google" in the url.
Exclude "referer" - will exclude all the domains that contains "referer" in the url.

Is there any jQuery solution for this?

Many thanks