Toggle effect of checkbox not working

[pano pano]

I need to have a simple toggle event to a checkbox and in addition to that, save the checkbox state and the related text or div state after page refresh. I found this script that works exactly as i want here
but when i upload the exact same code to my page, it doesn't work.
my page.
So what's the problem? Can anyone help?
thanks

[Rabbit]

It's because the working one uses the jquery framework and yours does not include a reference to the jquery framework.