how can redirect with validate

[eluser]Kency[/eluser]
Hi !

I have problem when i try validate my form with CI form validate, but i want to redirect when i validate. it mean my url like

Code:

http://example.com/form

and when form is missing it call function checkform() and url will be

Code:

http://example.com/checkform

but i want my url is the same in first url

Code:

http://example.com/form

how can i do it with CI?