How to call stored procedure which is in dbml

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MVC3

Hi,

I am creating a MVC3 project with linq to sql in dbml in model.
I had dragged following stored procedures in dbml file.

a) SP_AddCustomer()

b) SP_GetCustomer()

c) SP_GetCustomer(string customerid)

d) SP_DeleteCustomer(string customerid)

I do not know how to call them in Controller, Model and View.

Please help urgent.
I am not using Entity framework.
Please share sample project or urls.

Regards
S.Guhananth.