Click-once hypertext: now you see it, now you don't

SMASH (Self-Modifying As-Selected Hypertext) is a system for automatically removing text from a Web page as hyperlinks are selected. Making links (and, optionally, other related text) click-once allows a system to avoid clutter and provide visual feedback to a user. Unlike other typical adaptive hypertext systems, SMASH generates pages specially on the originating server but allows the browser to update the content automatically and efficiently. We discuss several trade-offs in the design of the system and a transparent and portable implementation using JavaScript.