I have a problem that I'm not even sure what to search for in order to fix. When I press the spacebar my entire page moves up (scrolls down): I don't want this to happen. My body tag is styled to overflow:hidden, if that has anything to do with it, so the page won't have any scrollbars. I'm usually pretty good at executing the preliminary troubleshooting techniques but in this case I don't even know where to start. How can I stop this behaviour?
Additional information: I am using jQuery 1.4.2