function check(e){
	if(e == 1 ) {
		document.getElementById("merumaga_link").disabled = true;
		document.getElementById("merumaga_link").className = document.getElementById("merumaga").className.replace(/now_on/,'');
		document.getElementById("ryoukinn_link").disabled = false;
		document.getElementById("ryoukinn_link").className += ' now_on';
		document.getElementById("ryoukinn").style.display = "block";
		document.getElementById("merumaga").style.display = "none";
	} else {
		document.getElementById("ryoukinn_link").disabled = true;
		document.getElementById("ryoukinn_link").className = document.getElementById("ryoukinn").className.replace(/now_on/,'');
		document.getElementById("merumaga_link").disabled = false;
		document.getElementById("merumaga_link").className += ' now_on';
		document.getElementById("ryoukinn").style.display = "none";
		document.getElementById("merumaga").style.display = "block";
	}
}