// ���j���[
if(navigator.appName == "Netscape" && navigator.appVersion.charAt(0) >=3 || navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.charAt(0) >=4){
	var img = new Array();
	img[1] = new Image();  img[1].src = "images/menu/menu_01.gif";
	img[2] = new Image();  img[2].src = "images/menu/menu_01_on.gif";
	img[3] = new Image();  img[3].src = "images/menu/menu_02.gif";
	img[4] = new Image();  img[4].src = "images/menu/menu_02_on.gif";
	img[5] = new Image();  img[5].src = "images/menu/menu_03.gif";
	img[6] = new Image();  img[6].src = "images/menu/menu_03_on.gif";
	img[7] = new Image();  img[7].src = "images/menu/menu_04.gif";
	img[8] = new Image();  img[8].src = "images/menu/menu_04_on.gif";
	img[9] = new Image();  img[9].src = "images/menu/menu_05.gif";
	img[10] = new Image();  img[10].src = "images/menu/menu_05_on.gif";
	img[11] = new Image();  img[11].src = "images/menu/menu_06.gif";
	img[12] = new Image();  img[12].src = "images/menu/menu_06_on.gif";
}

function change(name,number) {
	if(navigator.appName == "Netscape" && navigator.appVersion.charAt(0) >=3 || navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.charAt(0) >=4){
		document.images[name].src = img[number].src;
	}
}