Handbrake Warning Light - HELP

Need a bit of help here lads and lassies.
On the way into work this morning the handbrake warning light would not got off. It had been flickering on/off the last couple of days but now its on constantly - any ideas ?
Does the warning light show if brake fluid is low or if pads need replacing ?
Have noticed the Dot 3 fluid (brake fluid I think) is a little low in the resevoir but not at the minimum level.
Thanks
Robin (MkII 1.
On the way into work this morning the handbrake warning light would not got off. It had been flickering on/off the last couple of days but now its on constantly - any ideas ?
Does the warning light show if brake fluid is low or if pads need replacing ?
Have noticed the Dot 3 fluid (brake fluid I think) is a little low in the resevoir but not at the minimum level.
Thanks
Robin (MkII 1.
