Malcolm,
Sometimes you have to click twice to get the click to be detected. I was trying to find away that I can make the lines bigger click targets (without making obnoxiously thick), by having the line drawn with one pixel of background color on each side of the real line but haven't found a way to do it.
Update - and then again the click malfunction is probably related to the frame that geocities is imposing that screws up the object reference in the script code.. take the frame content and save it to a local file and view it and it should work better.
>Very impressive! That's a great example of VML in action.
>
>Side note: Your lines change color on a mouse over, but I didn't get the node dim effect on a click. My system is running Office 2003, XP SP 2, and the latest version of IE.