Rounding up to the nearest 0.05 in JavaScript

Rob's answer with my addition:

(Math.ceil(number*20 - 0.5)/20).toFixed(2)

Otherwise it always rounds up to the nearest 0.05.

** UPDATE **

Sorry has been pointed out this is not what the orig poster wanted.

Multiply by 20, then divide by 20:

(Math.ceil(number*20)/20).toFixed(2)