(via Simon) PHP.net have implemented a javascript autocomplete for their function search. Note that this is not the browser autocomplete that lists things you typed in before. Instead, this dropdown lists all valid functions starting with "my". Very, very useful.
Simon notes that the javascript is not being shared (it's scrambled), and in the comments Sergi points to this autocomplete script (which isn't half as nice). A quick Google reveals:
- How to make your own.
- You can ask IE to show the dropdown on your form elements.
- How to make your own (another one).
I am very dissapointed that the W3C isn't putting these controls in the HTML specs (correct me if I'm wrong here). Things like autocomplete, list or table sorting, ordering lists or validation should be taken care of by the browser by specifying a simple html tag or attribute.
All this javascript is nice but it isn't really going anywhere - if a truly useful and compatible javascript library for this stuff that didn't require lots of customization was going to happen, it would be here already. (With my respect to the authors of the various libraries out there - they're doing a great job - but it's not good enough. Not easy enough to implement. Not standardized enough.)