Url Problem

[eluser]Suhas nazir[/eluser]
Hello I am using Codeigniter 2.00

My Problem is When i click on my submit button the action url is appending to the existing url

something like this localhost/Store/localhost/Store/controller/function

but i am looking for a link like this when i click on the submit button

localhost/Store/controller/function

I set my base_url as localhost/Store

Please Help me