if (document.images) {

	/* 家庭教師募集バナー
	-----------------------------------------------------*/
	var banner_exposition_on = new Image();
	banner_exposition_on.src = "/img/banner_exposition_on.jpg";
	var banner_exposition_off = new Image();
	banner_exposition_off.src = "/img/banner_exposition_off.jpg";
	//-----------------------------------------------------
	
	/* フィールバナー
	-----------------------------------------------------*/
	var logo_feel_on = new Image();
	logo_feel_on.src = "/img/logo_feel_on.gif";
	var logo_feel_off = new Image();
	logo_feel_off.src = "/img/logo_feel_off.gif";
	//-----------------------------------------------------

	/* 体験バナー
	-----------------------------------------------------*/
	var bt_taiken_on = new Image();
	bt_taiken_on.src = "/img/bt_taiken_on.jpg";
	var bt_taiken_off = new Image();
	bt_taiken_off.src = "/img/bt_taiken_off.jpg";
	//-----------------------------------------------------

}
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');
	}
}