text: 'use strict';
  
  window.onload = () => {
      var doc = document;
  
      // /form divs
      var firstForm = doc.getElementById('first-form'),
          secondForm = doc.getElementById('second-form');
  
      // next buttons
      var nextBtn = doc.getElementById('nextBtn');
  
      //submit cotainer
      var submitCntr = doc.getElementById('submit-container');
  
      //Links
      var firstLink = doc.getElementById('first-link'),
          secondLink = doc.getElementById('second-link');
  
  if(nextBtn){
    nextBtn.addEventListener('click', (event) => {
        event.preventDefault();
  
        firstForm.classList.add('hidden');
        secondForm.classList.remove('hidden');
        submitCntr.classList.remove('hidden');
        nextBtn.classList.add('hidden');
  
        //links
        firstLink.classList.remove('active');
        secondLink.classList.add('active');
    });
  
  }
  
  }
  