Features:
Major update with code from Mark Gibson after he found this plugin on the JQuery Plugins page. Thank you Mark, you did some superb work on it! This page has been updated with all his changes (27-Sep-2006)
Is now a proper JQuery Plugin (27-Sep-2006)
Accepts initialisation options (for min/max limits, step size etc) (27-Sep-2006)
Spins when you hold mouse button down (27-Sep-2006)
Set upper and lower (min/max) limits, eg 0 to 100 (09-Sep-2006)
Set increment step size, eg 5 (09-Sep-2006)
Responds to up/down keys (13-Aug-2006)
Responds to mouse wheel (13-Aug-2006) Also in Firefox (09-Sep-2006)
Adds no extra html elements to page (uses only css bg images for button effect). It remains an input element (type=text) even though it looks like a spin control