I'm not sure but I think this will only work for the 4.x browsers. I think it's very cool.
Search

move your mouse cursor over the word Search
it will open a layer at the current mouse position


Alta Vista


html~Creek
If you want this script just save this page.
URL: http://www.datacreek.net/webgear/javascript/searchover.html
datacreek.com


html~Creek