Scanner for HTML forms

Turn your users' android mobile devices into a scanner. All you need to do is
a. insert a unique id field and a Onfocus parameter in the input field if scanner input is needed.
<input type=text id=myscan1 name=myscan1 onfocus=Android.scan(this.id)>
b. Download a free scanner program. Like 'QR Droid' that can scan both QR code and bar code
Benefits are
a. By changing the HTML code of your input field, you decide which is the field that would activate the scanner.
b. There is no need to change the 'keyboard' like some other scanner software. You continue to use the same keyboard that suits your default language best.
c. By focusing on the input field again, you can deactivate the scanner and use the keyboard.
d. The app remembers which URL the user went to. Alleviate user error in visiting the wrong URL or even forgetting which URL to go to.