Previous Next Problem (pageable data)

I have a lot of data in my database, for instance 10000 records, with that I want to view only 50 records per page, and 10 page groups like this


Previous 1 2 3 4 5 6 7 8 9 10 Next


and when I click "Next" then I will see

Prevous 11 12 13 14 15 16 17 18 19 20 Next

and so on.. when I continue clicking the next.

Could anybody help me?

Here's the script, you may refer http://www.mediasworks.com/script/