Jquery: iphone style checkbox plugin, why is it so big? can't it be so much simplier?

Question

I was looking up jquery checkbox scripts/plugins, and I came across this one: Jquery Checkbox Plugin

Why is it 8kb? that's absolutely HUGE for something that could be so incredibly simple, right? I'm not that good at Javascript/Jquery, but I know that you can set up a click event on an image that toggles a checkbox that has the same class, or something to that effect. So if it could be so simple, why is it so big?

I've seen 30+KB tooltip plugins, that's RIDICULOUS and HORRIBLE, you could accomplish the same thing for much less... why do people do this?

Answer 1

8kb is a lot, here's one that's 2kb instead.