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;
}


//top btn
preload("menu1","img/menu01.gif","img/menu01_over.gif");
preload("menu2","img/menu02.gif","img/menu02_over.gif");
preload("menu3","img/menu03.gif","img/menu03_over.gif");
preload("menu4","img/menu04.gif","img/menu04_over.gif");
preload("menu5","img/menu05.gif","img/menu05_over.gif");
preload("menu6","img/menu06.gif","img/menu06_over.gif");
preload("menu8","img/menu08.gif","img/menu08_over.gif");