Stored Procedures - How to insert code into every stored procedure in a database

Hi, I'm working with SQL Server 2008 and now I need to insert 3 lines code into the beginning of every stored procedure in database. (The purpose to do this is to track execution history) There are about 3000 stored procedures so definitely I dont wanna do it manually. Here is an example about how I wanna the sp looks like:

ALTER PROCEDURE [dbo].[StoredProcudureSample] @variable int
AS
SET NOCOUNT ON

DECLARE @ProcName VARCHAR(200)

SET @ProcName = OBJECT_NAME(@@PROCID)

EXEC [dbo].[Sproc_SaveStoredProcedureExecute] @StoredProcedureName = @ProcName


--original stored procedure body
...

Does anyone have good idea about this?

TIA,

Julie

Script out alter procedure scripts for all procedures. Then use a Regular Expression to insert the desired text. Then run the resulting script.