To generate a QRCode use the following parameters:
info text information that will be encoded into the QRCode
width width of the QRCode
height height of the QRCode
for example: http://qr.unsode.com/getqrcode.aspx?info=http%3a%2f%2fwww.unsode.com
http://qr.unsode.com/getqrcode.aspx?info=http%3a%2f%2fwww.unsode.com&width=256&height=256
Also, you may pass these parameters as GET/POST parameters

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