//IEの動作
function dispLayer(judgeNo){
	if(judgeNo == 1){
		var targetName = document.getElementById('prebox');
	}else{
		var targetName = document.getElementById('calbox');
		
	}
	targetName.style.visibility = 'visible';
}

//レイヤ非表示
function menuhidden(judgeNo){
	if(judgeNo == 1){
		var targetName = document.getElementById('prebox');
	}else{
		var targetName = document.getElementById('calbox');
	}
	targetName.style.visibility = 'hidden';
}