Inside Dynamic HTML - Extending JavaScript with Function Pointers
This script from way back in the last millennium might be useful if you happen to be working on IE mobile which lacks OOTB support for window.setInterval
(tags: notetoself javascript iemobile)
Internet Explorer Mobile Reference
the complete list of whats missing
(tags: iemobile javascript)
XML Core Services and Document Object Model
(tags: iemobile xmlhttprequest dom)