Just to let you know that you still have errors on this page as I'm sure everyone else but you can notice because you have this section of code in there:
This is how you fix that so everyone viewing your page won't get errors.
take the "CascadeMenu.js" file and place it in the same directory that your page is on (put in on your server, basically).
if the js file is in the same folder, then this is how you would reference it:
Do this then we can help.
Edited: to correct wording