Just a quick note. I rechecked my grades deadline, and I can extend the course deadline to May 9 and still have time to get my grades in. But really, midnight of the 9th (that is, the time when the 9th and the 10th collide–yes, people really do seem to get confused about that) is the absolutely last time to get everything in.
Also, I am aware of the javascript problem on this page. It’s actually a problem with the Diigo toolbar colliding with other Javascript on this page. I’ll try to work it out.