Want to put a live stock price widget in header

Hi,

I'm trying to put a live gold price in the header of a website, sort of like how they do on this site www.pilargold.com on the top right.
The Squarespace site i'm wanting to do it for is www.laivagold.com

I can't figure out how to do this so any help would be much appreciated.

If you can add it to Footer, we can give code to move it to Header