set checkvar 0
label .l -textvariable checkvar -bg grey77
checkbutton .b1 -variable checkvar -text checked? -bg grey77
checkbutton .b2 -variable checkvar -text checked? -bg grey77 \
	-onvalue 0 -offvalue 1 -indicatoron y
pack .l -side top -fill x
pack .b1 .b2 -side top -fill both -expand y