function preLoad(imgs) {
	var preImg = new Array();
	for (i = 0; i < imgs.length; i++) {
		preImg[i] = new Image();
		preImg[i].src = imgs[i];
	}
}

preLoad(["img/items_h.gif","img/news_h.gif","img/recruit_h.gif","img/shop_h.gif","img/users_h.gif","img/banner_maeda_h.gif","img/banner_shizuoka_h.gif"]);