Supersimple zoom script, but only big images will zoom out again. Why?

[Frank P]

Hi,

 

I was not happy with the zoom scripts that I found on the net, so I wrote one myself, or one that simulates it. It has become an extremely simple one, and can be seen in action here (function toggleZoom). Click the images to zoom in and click to zoom out again.

 

However, only the images with an initial width of >= 100 pixels will zoom out again. The ones width an initial width of < 100 (nrs. 4, 5 and 7) won't. Why is that, and how do I solve it?

[Frank P]

Resolved. It appeared that my JS was comparing strings, not numbers. With the Number method things work well now. See the source code of the example for details.