ignore question mark in url

[Maoz <maozza@xxxxxxxxx>]

hello, 
how can I ignore the question mark in url
I'll explain:
Treat the url until the question mark as object.

www.domain.com/index.jsp?aaa=1

will be the same object as:

www.domain.com/index.jsp?aaa=10

and

www.domain.com/index.jsp?aaa=2&ggg=3

thanks