Custom Pagination Number

[eluser]web_developer[/eluser]
I am using pagination library, it's working fantastic. But the thing is only that I want to change the page parameter..

hmmm For example.

Recently here is the pagination Prev. 1 2 3 4 5 Next

If I click of "2" (2nd number page) then in URL parameter it's showing "page10" and on 3rd page it's showing "page20". So instead of that I want to show page number according to link

like this

1 -> page1
2 -> page2
3 -> page3
4 -> page4
5 -> page5

So how can I change the pagination parameter? for that What I have to do?