Time and item counter

This Javascript-based tool can be used to add up the time you spend on projects, and can also count arbitrary items along the way. The input is text-based (so it can be copied from a PDA or whatever) and the script will attempt to save your text (locally, not to my server) as you type. You can enter:

• Hours and minutes e.g. 3h 5min or decimal fractions of hours e.g. 1.5h (start with e.g. 0.0h to get output as decimal fractions)
• Starting and finishing times e.g. 954-1023 for start at 9:54 and stop at 10:23 (if stopping in the same hour, you need specify only the 2-digit minute after the -); a button to start/stop at the current time is provided
• Arbitrary items, by placing your chosen abbreviation of the item immediately after a number, e.g. 1m 2t 4bk
• To track other projects, precede some numbers with one or more letters e.g. x3h x45min y9t: each prefix gives a separate total.

Programmers might want the source code.