This developer's site has an excellent introduction to Ajax, including demonstrations (with code) of sortable data grids, popup suggest boxes for form entries, and more.
An ideal first read if you want to get into Ajax.
The Mouse Whisperer is a property of The Mouse Whisperer respective authors, vendors and developers. You can download The Mouse Whisperer for your hardware. If you want to use The Mouse Whisperer for other purpose, Please contact the authors, vendors and developers of The Mouse Whisperer.
