tester

Hi all,
I have a 'Back to Top' html code on most of my webpages.

These have always worked fine and I have always used Internet Explorer.

However my IE was hanging a lot recently and I was recommended to change to Firefox. I have installed this and it's working fine and doesn't seem to hang like IE.

The problem is the 'Back to Top' doesn't work in Firefox but works fine in IE. Here is the HTML Code I h