review.js

const VIDEOS = {
  video1: 'https://www.youtube.com/embed/LPcBH7kUWhY?rel=0&showinfo=0&autoplay=1',
  video2: 'https://www.youtube.com/embed/LPcBH7kUWhY?rel=0&showinfo=0&autoplay=1',
  video3: 'https://www.youtube.com/embed/LPcBH7kUWhY?rel=0&showinfo=0&autoplay=1',
  video4: 'https://www.youtube.com/embed/LPcBH7kUWhY?rel=0&showinfo=0&autoplay=1',
  video5: 'https://www.youtube.com/embed/LPcBH7kUWhY?rel=0&showinfo=0&autoplay=1',
  video6: 'https://www.youtube.com/embed/LPcBH7kUWhY?rel=0&showinfo=0&autoplay=1'
};

function insertIframe() {
  const activeSlide = $('.slider2 .tns-slide-active .video');
  
  if (activeSlide.querySelectorAll(':scope > iframe').length < 1) {
    activeSlide.innerHTML = `
      <iframe 
        width="560" 
        height="400" 
        src="${VIDEOS[activeSlide.id]}" 
        frameborder="0" 
        allow="autoplay; encrypted-media" 
        allowfullscreen
      ></iframe>
    `;
  }
}