Look, it's only fair to warn you that I wrote this in the middle of the night after struggling with html and javascript all day, and that I haven't looked at it in over a year. So it's probably entirely cringe-worthy (hell, I'm too scared to look and find out myself). You've been warned.
I'm feeling brave and I promise I won't laugh at you.
You're right, this is silly, and I value the integrity of my braincells.