function openVideo (elt) {
	
	let url = elt.href;
	
	var embedLink = url.replace(/(https?:\/\/.*\/videos)\/watch\/(.*)/, '$1/embed/$2?start=0s&autoplay=1');
	
	
	var image = elt.getElementsByTagName('img')[0];
	
	image.style.display = "none";
	
	image.insertAdjacentHTML('afterend', '<iframe width="560" height="315" sandbox="allow-same-origin allow-scripts allow-popups" src="'+embedLink+'" frameborder="0" allowfullscreen></iframe>');
}