b0off = new Image();
b0off.src = "gfx/btn-of.gif";
b0on = new Image();
b0on.src = "gfx/btn-of1.gif";

b1off = new Image();
b1off.src = "gfx/btn-pr.gif";
b1on = new Image();
b1on.src = "gfx/btn-pr1.gif";

b2off = new Image();
b2off.src = "gfx/btn-ar.gif";
b2on = new Image();
b2on.src = "gfx/btn-ar1.gif";

b3off = new Image();
b3off.src = "gfx/btn-pra.gif";
b3on = new Image();
b3on.src = "gfx/btn-pra1.gif";

b4off = new Image();
b4off.src = "gfx/btn-ko.gif";
b4on = new Image();
b4on.src = "gfx/btn-ko1.gif";

b5off = new Image();
b5off.src = "gfx/btn-sk.gif";
b5on = new Image();
b5on.src = "gfx/btn-sk1.gif";

b6off = new Image();
b6off.src = "gfx/btn-pro.gif";
b6on = new Image();
b6on.src = "gfx/btn-pro1.gif";

function myfun() {
	if (xmenu == 0) {
		document.gfx['b1'].src=b1off.src;
	}
}

function myfun2() {
	if (ymenu == 0) {
		document.gfx['b2'].src=b2off.src;
	}
}