Help Using Javascript Function

Ok, I use this function on a non-wordpress site, but wanted to integrate it into a wordpress site, but it’s not working.

My programming knowledge sucks, so maybe this isn’t possible.

The function randomizes the order of three div’s below. It works fine on my other site, but won’t call in wordpress.

Here’s the code:

[Code moderated as per the Forum Rules. Please use the pastebin]