It's improved CSS version of SourNote's GreaseMonkey script (http://userscripts.org/scripts/show/8536)
It changes google.com and images.google.com search - the topbar remains on the top of the page all the time.
Works great with Definitive Google Auto Pager (http://userscripts.org/scripts/show/8430) and Google Images Auto Pager (http://userscripts.org/scripts/show/8433)
EDIT:
Little fix - autocomplete stays in place