How to programmatically disable page scrolling with jQuery

Question

Using jQuery, I would like to disable scrolling of the body:

My idea is to:

1. Set body{ overflow: hidden;}
2. Capture the current

Answer 1

I put an answer that might help here: jQuery simplemodal disable scrolling

It shows how to turn off the scroll bars without shifting the text around. You can ignore the parts about simplemodal.