 <p>I use tooltipsy, this is an EXCELLENT tooltip program. You can set it to do pretty much anything you want. If you want custom CSS, okay, if you want to set your own show and hide events, okay, you can change what the tooltip aligns to, the delay until it shows, you can do whatever you want. Tootipsy is the best one I ever used. (I had to make a little modification to it to get it to use HTML in the tooltips though, but it's a very simple change)</p>