if (document.images) {

	var img1on = new Image();
	img1on.src = "image/side1on.gif";
	var img1off = new Image();
	img1off.src = "image/side1off.gif";
	
	var img2on = new Image();
	img2on.src = "image/side2on.gif";
	var img2off = new Image();
	img2off.src = "image/side2off.gif";

	
	var img3on = new Image();
	img3on.src = "image/side3on.gif";
	var img3off = new Image();
	img3off.src = "image/side3off.gif";

	
	var img4on = new Image();
	img4on.src = "image/side4on.gif";
	var img4off = new Image();
	img4off.src = "image/side4off.gif";

	
	var img5on = new Image();
	img5on.src = "image/side5on.gif";
	var img5off = new Image();
	img5off.src = "image/side5off.gif";

	
	var img6on = new Image();
	img6on.src = "image/side6on.gif";
	var img6off = new Image();
	img6off.src = "image/side6off.gif";


}

function On(name) {

	if (document.images) {

		document.images[name].src = eval(name + 'on.src');

	}

}

function Off(name) {

	if (document.images) {

		document.images[name].src = eval(name + 'off.src');

	}

}