This script:
function onscroll(){
document.getElementById("divs").style.top=""+$('body').scrollTop()+"px";
}
Fiddle: http://jsfiddle.net/Hed2J/1/
Doesn't work on the latest Firefox version!
What am I doing wrong? :) Thanks for the help!
Edit: Edited with JSFiddle and full script :) as attached to an onscroll event