<!-- 

if (document.images) {

	/* left navi */

	var n1on = new Image();
	n1on.src = "img/durostoneon.jpg";
	var n1off = new Image();
	n1off.src = "img/durostone.jpg";

	/* contents */

	var c1on = new Image();
	c1on.src = "img/contacton.jpg";
	var c1off = new Image();
	c1off.src = "img/contact.jpg";

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

	var m1on = new Image();
	m1on.src = "img/flowon.jpg";
	var m1off = new Image();
	m1off.src = "img/flow.jpg";

	var m2on = new Image();
	m2on.src = "img/reflowon.jpg";
	var m2off = new Image();
	m2off.src = "img/reflow.jpg";


	/* right contents */

	var r1on = new Image();
	r1on.src = "img/qaon.jpg";
	var r1off = new Image();
	r1off.src = "img/qa.jpg";

	var r2on = new Image();
	r2on.src = "img/r1on.jpg";
	var r2off = new Image();
	r2off.src = "img/r1.jpg";

	var r3on = new Image();
	r3on.src = "img/r2on.jpg";
	var r3off = new Image();
	r3off.src = "img/r2.jpg";

	var r4on = new Image();
	r4on.src = "img/r3on.jpg";
	var r4off = new Image();
	r4off.src = "img/r3.jpg";

	var r5on = new Image();
	r5on.src = "img/r4on.jpg";
	var r5off = new Image();
	r5off.src = "img/r4.jpg";

	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/iton.gif";
	var r7off = new Image();
	r7off.src = "img/it.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');
	}
}