Working example of link posted by pranav:
FYI: Tested in IE 6, 7, & 8 (compatibility mode on or off), FF 3 & 3.5, Chrome 2. Not screen-reader-friendly (headers aren’t part of content table).
EDIT 5/5/14: moved example to jsBin. This is old, but amazingly still works in current Chrome, IE, and Firefox (though IE and Firefox might require some adjustments to row heights).