Custom Pagination in ASP.Net GridView with Next Previous Buttons

Hi i use these code to paging my grid view

http://www.aspsnippets.com/Articles/Custom-Paging-in-ASP.Net-GridView-using-SQL-Server-Stored-Procedure.aspx

here pagination is like this

First 1,2,3,4,5,6,7,8,9,10 Last

 I want my pagination be like this

Previouse 1,2,3,.. Next

i mean if i have morethan 3 page it shows like above and when i click on next it show like this

Previouse 4,5,6,.. Next

thanks