http://biologi.atspace.com/index2.htm is related to http://biologi.atspace.com/events.js so that the things you write in events.js will turn up in index2.htm

When you click on a yellow/red (=red when today's date = event date) event in the calendar in http://biologi.atspace.com/index2.htm , the information from the file events.js will be displayed. This is fine.

But is it possible to combine a fixed tooltip with the homepage so that when you hover the mouse over a yellow or red date you will see the title of the event only?

I want the hovering title tooltip to look something like this: http://www.dynamicdrive.com/dynamici...xedtooltip.htm

Put it in the title attribute of the element.