[pepachino]

Thanks for your suggestions! I've implemented a couple of them:

* Added delay for every reaction

* Made the page less tall, everything is smaller now (I'd underestimated the size, working on a 27" iMac)

* The easy mode was already there, enzymes lit up when you picked up a substrate. I've added an extra help now: when you hover over an enzyme, the available substrates light up.

* The transporters are only visible (and usable) if enough ATP/substrate is available

[gus_massa]

Now it doen’t work in IE8 (javascript error). But it works in Chrome. It looks much better in Chome than in IE8. I think that I didn’t see the enzymes highlighting because of IE8.

Please don’t make the transporters invisible, only disable them.

(I don’t like starting with a Pyruvate, it is like cheating.)