var img_off = new Array();
var img_on = new Array();

function preload(name,url,url_on){
	img_off[name] = new Image();img_off[name].src = url;
	img_on[name] = new Image();img_on[name].src = url_on;
}

function Mover(num) {
	if(navigator.appVersion.charAt(0) >= "3") {
		document.images[num].src = img_on[num].src;
	}
}

function Mout(num) {
	document.images[num].src = img_off[num].src;
}

function Mover2(num,num2) {
	if(navigator.appVersion.charAt(0) >= "3") {
		document.images[num2].src = img_on[num].src;
	}
}

function Mout2(num,num2) {
	document.images[num2].src = img_off[num].src;
}

//左メニュー
var img_url = "http://www.yamashitasekkei.co.jp/works/";
preload("btn_01",img_url + "img/btn_01.gif",img_url + "img/btn_01_on.gif");
preload("btn_02",img_url + "img/btn_02.gif",img_url + "img/btn_02_on.gif");
preload("btn_03",img_url + "img/btn_03.gif",img_url + "img/btn_03_on.gif");
preload("btn_04",img_url + "img/btn_04.gif",img_url + "img/btn_04_on.gif");
preload("btn_05",img_url + "img/btn_05.gif",img_url + "img/btn_05_on.gif");
preload("btn_06",img_url + "img/btn_06.gif",img_url + "img/btn_06_on.gif");
preload("btn_07",img_url + "img/btn_07.gif",img_url + "img/btn_07_on.gif");
preload("btn_08",img_url + "img/btn_08.gif",img_url + "img/btn_08_on.gif");
preload("btn_09",img_url + "img/btn_09.gif",img_url + "img/btn_09_on.gif");
//BACK.NEXT,DATEボタン
preload("back","img/btn_back.gif","img/btn_back_on.gif");
preload("next","img/btn_next.gif","img/btn_next_on.gif");
preload("back2","img/btn_back_lef.gif","img/btn_back_lef_on.gif");
preload("next2","img/btn_next_lef.gif","img/btn_next_lef_on.gif");
preload("date2","img/btn_date_lef.gif","img/btn_date_lef_on.gif");