How To Use Table Name As Parameter??

When I execute this sp like this:

exec AddNewSKUsToExistingStyle 'table1'

I am getting the following error: (even though I have table1 in db).

Server: Msg 208, Level 16, State 1, Procedure AddNewSKUsToExistingStyleTest, Line 6
Invalid object name '@table_nm'.

Any ideas on how to use table name as parameter??
Thanks.


script for sp:
-----------------------------------------------------------------------------------------
CREATE Procedure AddNewSKUsToExistingStyle

@table_nm varchar (20)

as
Set nocount on
/* Step No. 1 */
Update site_product_xref
Set Site_Product_End_dt = '12/31/09'
--select sk.eb_style_id, sk.eb_sku_id, spx.Site_Product_Id
from [@table_nm] c inner join Book b
On (c.book_id = b.book_id)
Inner Join Size_Color SZ
On (SZ.EB_Style_Id = c.EB_Style_Id)
Inner Join EB_SKU SK
On (C.EB_Style_Id = SK.EB_Style_Id
and sz.color_id = sk.color_id
and sz.size_id = sk.size_id)
Inner Join site_product_xref spx
On (sk.eb_sku_id = spx.eb_sku_id
and spx.Site_id = 1)
where spx.Site_Product_start_dt < b.live_dt