Stored procedure

Hi NG,

I want to write a stored procedure which creates a table in my
PostgreSQL database. The procedure has one input parameter: the table name.
Here is my first try, but that does not work:
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CREATE OR REPLACE FUNCTION create_geom_table(text) RETURNS void AS $$
DECLARE
--table_name TEXT;
BEGIN
---------------------------------------
CREATE TABLE table_name
(
id integer,
"time" timestamp without time zone,
geom geometry,
CONSTRAINT enforce_dims_geom CHECK (ndims(geom) = 2),
CONSTRAINT enforce_geotype_geom CHECK (geometrytype(geom) =
'MULTIPOLYGON'::text OR geom IS NULL),
CONSTRAINT enforce_srid_geom CHECK (srid(geom) = -1)
)
WITHOUT OIDS;
ALTER TABLE table_name OWNER TO "admin";

CREATE INDEX geo_index ON table_name USING gist(geom);

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ALTER FUNCTION create_geom_table(table_name) OWNER TO "admin";
END;
$$ LANGUAGE plpgsql;

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Can someone tell me what's wrong with this and what I have to change?

Regards,
Thorsten