Untitled

<!doctype html>
<head>
<style>
body, input {font-size:14pt}
input, label {}
.qrcode-text {}
.qrcode-text-btn {cursor:pointer}
.qrcode-text-btn > input[type=file] {cursor:pointer}
</style>
<script src="qr_packed.js" type="text/javascript"></script>
<script>
function openQRCamera(node) {
  var reader = new FileReader();
  reader.onload = function() {
    node.value = "";
    qrcode.callback = function(res) {
      if(res instanceof Error) {
        alert("No QR code found. Please make sure the QR code is within the camera's frame and try again.");
      } else {
        node.parentNode.previousElementSibling.value = res;
		alert('QR-Code decoded to:' + res);
      }
    };
    qrcode.decode(reader.result);
  };
  reader.readAsDataURL(node.files[0]);
}
</script>
</head>
<body>
<input type=text size=16 placeholder="Tracking Code" class=qrcode-text>
<label class=qrcode-text-btn>
<input type=file accept="image/*" onchange="openQRCamera(this);" tabindex=-1>
</label>
<input type=button value="Go" disabled>
</body>