Hi!  I'm just getting started with Forms and wondered if someone had some Javascript handy to multiply 2 fields; currency x number = currency.  (rate * miles = reimburse).   Any assistance would be appreciated!  

(Yes.. I've read the "getting started with javascript" page.. it's just not sinking in fast enough for me.)

Here's what I have so far by piecing together some other examples; 

$(document).ready(function () {

$('form').click(function(){

$('.miles').on('blur', 'input', calculate);

function calculate() {
var miles = '[id^=Field82\\(]';
var rate = '[id^=Field83\\(]';
var reimburse = '[id^=Field84\\(]';


reimburse = parseNumber($(this).find('.rate input').val()) * parseNumber($(this).find('.miles input').val());

      $('.reimburse input').val(reimburse);
  
function parseNumber(n) {
  
    var f = parseFloat(n); //Convert to float number.
  
    return isNaN(f) ? 0 : f; //treat invalid input as 0;
  
  }
});