js/budget.js

   1 function focus_budget(i) {
   2     save_focus(i);
   3         i.setAttribute('_last', get_amount(i.name));
   4 }
   5
   6 function blur_budget(i) {
   7         var amount = get_amount(i.name);
   8         var total = get_amount('Total', 1);
   9
  10         if(amount<0) amount = 0;
  11         price_format(i.name, amount, 0);
  12         price_format('Total', total+amount-i.getAttribute('_last'), 0, 1, 1);
  13 }
  14
  15
  16 var budget_calc = {
  17         '.amount': function(e) {
  18                 e.onblur = function() {
  19                         blur_budget(this);
  20                   };
  21                 e.onfocus = function() {
  22                         focus_budget(this);
  23                 };
  24         }
  25 }
  26
  27 Behaviour.register(budget_calc);