// first image
function MenuImg1(){
	document.m_top.src = "img/" + dir + "/m_top.jpg";
	document.m_info.src = "img/" + dir + "/m_info.jpg";
	document.m_hot.src = "img/" + dir + "/m_hot.jpg";
	document.m_emp2.src = "img/" + dir + "/m_emp2.jpg";
	document.m_inn.src = "img/" + dir + "/m_inn2.jpg";
	document.m_rate.src = "img/" + dir + "/m_rate.jpg";
	document.m_eat.src = "img/" + dir + "/m_eat.jpg";
	document.m_event.src = "img/" + dir + "/m_event.jpg";
	document.m_luck.src = "img/" + dir + "/m_luck.jpg";
	document.m_emp.src = "img/" + dir + "/m_emp.jpg";
	document.m_home.src = "img/" + dir + "/m_home.jpg";
	document.m_photo.src = "img/" + dir + "/m_photo.jpg";
	document.m_acc.src = "img/" + dir + "/m_acc.jpg";
	document.m_see.src = "img/" + dir + "/m_see.jpg";
	document.m_link.src = "img/" + dir + "/m_link.jpg";
}

// change image
function MenuImg2(imgName,imgSrc){
	imgSrc = "img/" + dir + "/" + imgSrc;
	ImgSwap(imgName, imgSrc);
}

function ImgFind(doc,imgName){
	for (var j=0; j<doc.layers.length; j++){
		var img = doc.layers[j].document.images[imgName];
		if (!img) img = ImgFind(doc.layers[j], imgName);
		if (img) return img;
	}
	return null;
}

function ImgSwap(imgName,imgSrc){
	var appVer=parseInt(navigator.appVersion);
	var isNC=false,isN6=false,isIE=false;
	if (document.all && appVer >= 4) isIE=true; else
	if (document.getElementById && appVer > 4) isN6=true; else
	if (document.layers && appVer >= 4) isNC=true;
	if (isNC||isN6||isIE){
		if (document.images){
			var img = document.images[imgName];
			if (!img) img = ImgFind(document, imgName);
			if (img) img.src = imgSrc;
		}
	}
}