on1755=new Image(59,41)
on1800=new Image(50,41)
on1825=new Image(50,41)
on1850=new Image(48,41)
on1875=new Image(49,41)
on1900=new Image(46,41)
on1925=new Image(49,41)
on1950=new Image(47,41)
on1975=new Image(72,41)

on1755.src="tl/t_1755_on.gif"
on1800.src="tl/t_1800_on.gif"
on1825.src="tl/t_1825_on.gif"
on1850.src="tl/t_1850_on.gif"
on1875.src="tl/t_1875_on.gif"
on1900.src="tl/t_1900_on.gif"
on1925.src="tl/t_1925_on.gif"
on1950.src="tl/t_1950_on.gif"
on1975.src="tl/t_1975_on.gif"