<script>

$('#qrSpinner').html(aspLiteSpinner)

var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function(){
    if (this.readyState == 4 && this.status == 200){
        var img = document.getElementById("qrImg");
        var url = window.URL || window.webkitURL;
        img.src = url.createObjectURL(this.response);
		$('#qrSpinner').html('')
    }
}
xhr.open('GET', 'https://chart.googleapis.com/chart?cht=qr&chs=320x320&chl=[QR]');
xhr.responseType = 'blob';
xhr.send();

</script>