error "This script should be run from the \"widget\" demo."
}
set w .radio
catch {destroy $w}
toplevel $w
wm title $w "Radiobutton Demonstration"
wm iconname $w "radio"
positionWindow $w
label $w.msg -font $font -wraplength 5i -justify left -text "Three groups of radiobuttons are displayed below. If you click on a button then the button will become selected exclusively among all the buttons in its group. A Tcl variable is associated with each group to indicate which of the group's buttons is selected. Click the \"See Variables\" button to see the current values of the variables."