jQuery(document).ready(function(){
    //add listeners to band and cup measurement text boxes
    jQuery('#back').keyup(Honeys.updateBraSizeCalculation);
    jQuery('#cup').keyup(Honeys.updateBraSizeCalculation);
  });

  var Honeys = {
    updateBraSizeCalculation: function() {
      var back = jQuery('#back')[0].value;
      var cup  = jQuery('#cup')[0].value;

      if (back.length > 0 && cup.length > 0) {
        jQuery('#fit')[0].value = BraCalculator.calculateSize(back, cup);
      };
    }
  };