function swapimg(imgname,chg){
	document.images[imgname].src = chg;
}

	// ウィンドウ表示
	function showFlow(url){
		window.open(url,'','width=780,height=680,scrollbars=yes,resizable=yes');
	}

	// 表示／非表示切り替え
	function pulldowntxt(num){
		var intNum = num ;
		document.getElementById('no'+intNum).style.display='block';
	}
	function rolluptxt(num){
		var intNum = num ;
		document.getElementById('no'+intNum).style.display='none';
	}