Levis launches 30- and 15-second spots for its men's Dockers collection, which bows Sept. 5. Ads highlight the Go Khaki line with stain defender, and show men avoiding spills and stains. The ads were created by Interpublic Group of Cos.' Foote, Cone & Belding Worldwide, San Francisco. Group Creative Director: Brian Bacino. Art director: Robert Lussier. Director: Tom Carty.