Barcode scanner for html5 and jquery application

Try this code. I assum that you know about the Jquery. Run this code and type anything from the keyboard while focusing the web page and hit enter key. If this works barcode reader do the same. Configure your barcode reader to pass enter key at the end of code reading. Jquery library

<script type='text/javascript' src='http://code.jquery.com/jquery-1.6.4.js'></script>

Jquery

$(document).ready(function() 
{
    var barcode="";
    $(document).keydown(function(e) 
    {
        var code = (e.keyCode ? e.keyCode : e.which);
        if(code==13)// Enter key hit
        {
            alert(barcode);
        }
        else if(code==9)// Tab key hit
        {
            alert(barcode);
        }
        else
        {
            barcode=barcode+String.fromCharCode(code);
        }
    });
});