Changing a Column datatype

Hello I am having a table
table1
col1 (bit)
and i want to changethe col1 type for smallint
col1 (smallint)
true will be = 1
and false = 0
how can i do it ??
thank youJust change it using Enterprise Manager. The existing values will be implicitly converted.|||i must change it from a script
but i found it

thank you|||Change it in Enterprise Manager, and then click the icon that scripts your change.