Help jquery app

Help jquery app

I'm trying to make a unit conversion app but seam to be failing at the most simple peace of code. Could someone please help me getting this work?
  1. var from = $('#selectmenu10');
  2. var to =  $('#selectmenu11');
  3. var value = $('#textinput1');
  4. var result = '';
  5. $(function() {
  6.     $("#sb1").click(function() {
  7.         if (from.val() == 'Euro' || to.val() == 'Dollar') {
  8.             result.val(value.val() * 1.29840);
  9. alert(result + ' Dollar');
  10. }
  11.         }
  12.     });
  13. });