The example requires that you press buttons for the pop up; however, in your case you can create span tags around the verbiage that you'd like your tooltip to respond to and then apply event listeners to those tags.
q1 What sort of <span id='mytooltip'>hamburger</span> do you like? Select one.
- cheese and meat
- meat and cheese
- this burger: http://www.youtube.com/watch?v=ifUJ5--4tjI
Example using YUI and JS for the events:
YAHOO.util.Event.on('mytooltip', 'mousenter', magic);
// code to show your tool tip.
Here's the benefit:
- you can choose the xy coords
- it's html in the pop up, so you can configure it however you like (graphics, etc)
- very reusable