code: function create(pageIndex) {
        var debug = document.createElement('div');
        debug.id = 'stepper' + pageIndex;
        debug.setAttribute('hidden', true);
        debug.className = 'stepper';
        stepperDiv.appendChild(debug);
        var b = document.createElement('option');
        b.textContent = 'Page ' + (pageIndex + 1);
        b.value = pageIndex;
        stepperChooser.appendChild(b);
        var initBreakPoints = breakPoints[pageIndex] || [];
        var stepper = new Stepper(debug, pageIndex, initBreakPoints);
        steppers.push(stepper);
        if (steppers.length === 1) {
          this.selectStepper(pageIndex, false);
        }
        return stepper;
      }
docs: Stepper specific functions.