Send data together with form

Question

Complementing my previous question (goo.Gl/rNMK7c) and I want that when clicking the button to fill the form the code take which product the customer was interested, because there will be a button for each item, When the client click on the button that in the image this as contact is informed in the form which item he was interested, where the arrows are, has how to do without php, I haven’t studied yet, know little, follow the print of the site I’m doing prntscr.com/ghgf8p

Answer 1

$('button').on('click', function(){
  $('#id').val($(this).attr('data-id'))
})

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
   <input type="text" id="id" placeholder="ID">
   <input type="text" placeholder="nome">
</form>

<button data-id="1">Primeiro item</button>
<button data-id="2">Segundo item</button>

I didn’t quite understand your doubt, but I believe it’s something like that.