if (document.images) {


	// トップ
	var menu_topon = new Image();
	menu_topon.src = "../images/menu_topon.gif";
	var menu_topoff = new Image();
	menu_topoff.src = "../images/menu_topoff.gif";

	// 出産情報
	var menu_syussanon = new Image();
	menu_syussanon.src = "../images/menu_syussanon.gif";
	var menu_syussanoff = new Image();
	menu_syussanoff.src = "../images/menu_syussanoff.gif";

	// 子犬販売
	var menu_hanbaion = new Image();
	menu_hanbaion.src = "../images/menu_hanbaion.gif";
	var menu_hanbaioff = new Image();
	menu_hanbaioff.src = "../images/menu_hanbaioff.gif";

	// ご購入について
	var menu_kounyuon = new Image();
	menu_kounyuon.src = "../images/menu_kounyuon.gif";
	var menu_kounyuoff = new Image();
	menu_kounyuoff.src = "../images/menu_kounyuoff.gif";

	// 初めて飼われる方へ
	var menu_hajimeteon = new Image();
	menu_hajimeteon.src = "../images/menu_hajimeteon.gif";
	var menu_hajimeteoff = new Image();
	menu_hajimeteoff.src = "../images/menu_hajimeteoff.gif";

	// 交配犬紹介
	var menu_kouhaikenon = new Image();
	menu_kouhaikenon.src = "../images/menu_kouhaikenon.gif";
	var menu_kouhaikenoff = new Image();
	menu_kouhaikenoff.src = "../images/menu_kouhaikenoff.gif";

	// 会社概要
	var menu_gaiyouon = new Image();
	menu_gaiyouon.src = "../images/menu_gaiyouon.gif";
	var menu_gaiyouoff = new Image();
	menu_gaiyouoff.src = "../images/menu_gaiyouoff.gif";

	// お問い合わせ
	var menu_toiawaseon = new Image();
	menu_toiawaseon.src = "../images/menu_toiawaseon.gif";
	var menu_toiawaseoff = new Image();
	menu_toiawaseoff.src = "../images/menu_toiawaseoff.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');

	}

}