I have a barcode reader. It works. It writes data into input. No problem. Now I click inside the input and read the barcode. Then I click inside the lower second input and read the barcode. I want Auto input to switch to the bottom line. I want to write inside the second input without using the mouse without pressing the Tab button.

In fact, the event is simple, after typing in the first input, switching to the second input without using a mouse click.But I cant...

my code is:

  1&nbsp;<input type='text' name='b1' ><br><br>
                        2&nbsp;<input type='text' name='b2' ><br><br>
                        3&nbsp;<input type='text' name='b3' ><br><br>