The image probably isn't loaded by that time. I mean, it's probably a couple milliseconds, if that, between when you assign that src and when you ask for the width and height.

images which are clicked must remain in that state until another image is clicked (see rule #2), they are temporarily immune to mouse movements; thus, the setNormal() and setHover() functions ...

I'm having a weird issue with HTML canvas. For some reason image drawing is being stretched and distorted. I'm drawing a small image onto a 500x500 canvas, using: cvel = document.getElementById ...