function show_other(id){
	div = document.getElementById(id);
	switch (div.style.display) {
		case "none":
		div.style.display = "block";
		break;
		case "block":
		div.style.display = "none";
		break;
	}
}
function change_btn1(id) {
	p = document.getElementById(id);
	p.style.backgroundImage = "url('../img/wallpaper/bg-ttl.gif')";
	p.style.backgroundRepeat = "no-repeat";
	p.style.backgroundPosition = "right top";
}
function change_btn2(id) {
	p = document.getElementById(id);
	p.style.backgroundImage = "url('../img/wallpaper/bg-ttl-02.gif')";
	p.style.backgroundRepeat = "no-repeat";
}