kuu/test01

## test01
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0,user-scalable=yes" />
  </head>
  <body>
    <button id="loadBtn">Load</button>
    <button id="playBtn">Play</button>
    <button id="Up">Up</button>
    <button id="Down">Down</button>
    <script>
      document.addEventListener("DOMContentLoaded", function() {
        var tLoadButton = document.getElementById('loadBtn');
        var tPlayButton = document.getElementById('playBtn');
        var tUpButton = document.getElementById('Up');
        var tDownButton = document.getElementById('Down');
        var tBGM = new Audio();

        tLoadButton.addEventListener('click', function () {
          tBGM.src = 'bgm.mp3';
          tBGM.load();
        }, false);

        tUpButton.addEventListener('click', function () {
          var tVol = tBGM.volume + 0.1;
          if (tVol <= 1) {
            tBGM.volume = tVol;
          }
        }, false);

        tDownButton.addEventListener('click', function () {
          var tVol = tBGM.volume - 0.1;
          if (tVol >= 0) {
            tBGM.volume = tVol;
          }
        }, false);

        tBGM.addEventListener('loadeddata', function () {
          tPlayButton.addEventListener('click', function () {
            tBGM.play();
          }, false);
        }, false);
      }, false);
    </script>
  </body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0,user-scalable=yes" />
	</head>
	<body>
	<button id="loadBtn">Load</button>
	<button id="playBtn">Play</button>
	<button id="Up">Up</button>
	<button id="Down">Down</button>
	<script>
	document.addEventListener("DOMContentLoaded", function() {
	var tLoadButton = document.getElementById('loadBtn');
	var tPlayButton = document.getElementById('playBtn');
	var tUpButton = document.getElementById('Up');
	var tDownButton = document.getElementById('Down');
	var tBGM = new Audio();

	tLoadButton.addEventListener('click', function () {
	tBGM.src = 'bgm.mp3';
	tBGM.load();
	}, false);

	tUpButton.addEventListener('click', function () {
	var tVol = tBGM.volume + 0.1;
	if (tVol <= 1) {
	tBGM.volume = tVol;
	}
	}, false);

	tDownButton.addEventListener('click', function () {
	var tVol = tBGM.volume - 0.1;
	if (tVol >= 0) {
	tBGM.volume = tVol;
	}
	}, false);

	tBGM.addEventListener('loadeddata', function () {
	tPlayButton.addEventListener('click', function () {
	tBGM.play();
	}, false);
	}, false);
	}, false);
	</script>
	</body>
	</html>