The present invention provides a hypermedia database for managing bookmarks, which allows a user to organize hypertext documents for querying, navigating, sharing and viewing. The described invention also includes compositions and medicaments containing the triazine derivatives as well as processes for the preparation and use of such compounds, compositions and medicaments. A second double arm lever unit is pivotally mounted at its first arm through a connecting strip to the second arm of the first double arm unit. Instead, a center-pivoting handle is mounted in-line with one of the support standoffs and rotatably engages the door latch assembly within the door.