I found some Javascript code for calculating calories burned and copied it onto the HTML view of a Page on my Wordpress site, but the script will not execute.

I'm not a programmer, but I have seen some plug-ins not work as a result of a Javascript conflict. Is there something simple I can do to test that (turn it on/off or initialize it or something)?

The page is:

And I got the code here:

Thanks for any help you can provide!