<!-- 

if (document.images) {

	/* left navi */

	var n1on = new Image();
	n1on.src = "img/poweron.jpg";
	var n1off = new Image();
	n1off.src = "img/power.jpg";

	var n2on = new Image();
	n2on.src = "img/backupon.jpg";
	var n2off = new Image();
	n2off.src = "img/backup.jpg";

	/* contents */

	var c2on = new Image();
	c2on.src = "img/hton.gif";
	var c2off = new Image();
	c2off.src = "img/ht.gif";

	/* right contents */

	var r1on = new Image();
	r1on.src = "img/contacton.gif";
	var r1off = new Image();
	r1off.src = "img/contact.gif";

	var r6on = new Image();
	r6on.src = "img/kikudenon.gif";
	var r6off = new Image();
	r6off.src = "img/kikuden.gif";

	var r7on = new Image();
	r7on.src = "img/palleton.gif";
	var r7off = new Image();
	r7off.src = "img/pallet.gif";

}


/* ポイント時の処理 */
function on(name) {
	if (document.images) {
		document.images[name].src = eval(name + 'on.src');
	}
}

/* 放した時の処理 */
function off(name) {
	if (document.images) {
		document.images[name].src = eval(name + 'off.src');
	}
}