look at my xml


the buttons seems to be working the way i want, when checked show the components


but i followed the logic in http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=544.0

by using the
Action On
showComponent2=showComponent3=None=false;

but it doesnt work like yours on http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=544.0

chance to look at my code