Web Service and jquery ajax

Question

I wrote a stored procedure in sql-server for inserting data

CREATE PROCEDURE [dbo].[ASP_INSERT_CATEGORY](@CATEGORY_NAME NVARCHAR(MAX),@CATEGORY_DESCRIPTION NVARCHAR(MAX))

AS BEGIN

DECLARE @COUNT INT

SELECT @COUNT = COUNT(CATEGORY_NAME) FROM PARES_MASTER_CATEGORIES WHERE CATEGORY_NAME=@CATEGORY_NAME

IF(@COUNT>1)

BEGIN

SELECT 1 AS ALREADY_SAVED

END

ELSE

BEGIN

INSERT INTO [PARES_MASTER_CATEGORIES] (CATEGORY_NAME,CATEGORY_DESCRIPTION,STATUS) VALUES(@CATEGORY_NAME,@CATEGORY_DESCRIPTION,1)

END

END

Now i want to create a webservice and call that webmethod with jquery-ajax

 

But i don,t know how will do it.

 

Any body could u plz send me solution