Select does not work together with Environment.Value

May some help me with the following syntax. For some reason my “Select” does not work with my “Environment.Value”. I am getting the following error message “Invalid procedure call or argument”

Browser("Browser Name").Page("Page Name").Frame("fsbottom").WebList("Dealer Code").Select Environment.Value("Dealer_Code")

When I change the Select statement to a number it works

Browser("Browser Name").Page("Page Name").Frame("fsbottom").WebList("Dealer Code").Select “1234”