The invention relates to a method of manipulating the visibility of image elements on the screens of a multi-screen display. Thus, this tightens up the film so that the slacks or wrinkles cannot be formed on the film. Also disclosed are diagnostic methods for detecting a mutation in the TNF-gamma-alpha and TNF-gamma-beta nucleic acid sequences or overexperession of the TNF-gamma-alpha and TNF-gamma-beta polypeptides. In another embodiment, the broker establishes a secure SSL link with the one or more fulfillment servers. The latch mechanism, which is mounted to another frame component of the collapsible frame structure, remains so mounted in both the open arrangement and the folded arrangement.