I have an application that needs an on-screen keyboard.  I found one here:

http://javidan.github.io/jkeyboard/examples/index.htm

I have a three implementation questions.

1. How do I implement a <Tab> key?  I want to have more than one input field, and I want the <Tab> key on the keyboard to jump the focus between input fields.

2. Once the <Tab> key is in place, how do I get the plug-in to type into a given input field?  For example, I have the following:

<form action="/action_page.php">
  SSID: <input type="text" name="SSID"><br>
  Passphrase: <input type="password" name="pwd" maxlength="8"><br>
</form>

I want the on-screen keyboard to fill out the SSID and Passphrase.  I suspect it has something to do with the following lines in the example, but I don't know exactly what or how to provide for multiple input lines:

<script>
        $('#keyboard').jkeyboard({
        layout: "english",
        input: $('#search_field')
        });
</script>

3. Once that is working, how do I get the <Enter> key to submit the form?