QRcode.html

<script>
    // create a QR code to this page's href using google's chart api
    // positioned in the right corner. click to enlarge. click again to hide
    // http://googlecode.blogspot.com/2008/07/qr-codes-now-available-on-google-chart.html
    document.write([
        '<img src="http://chart.apis.google.com/chart?chs=150x150&cht=qr&choe=UTF-8&chld=L|1&chl=',
        encodeURIComponent(window.location.href),
        '" width="35" height="35" alt="QR Code" title="Click Me!" ',
        'style="position:absolute;top:10px;right:10px;" ',
        'onclick="if(this.width==35){this.width=this.height=150;}else{this.style.display=\'none\';}"/>'
    ].join(''));
</script>