Lazy Loading.

Lazy Loading

function LL(){ //lazyload functionality;
	
	var imageList = [];
	
	function getImages(){
		
		imageList.each(function(key,el){
			var toSRC = el.attr("data-image");
			el.attr("src",toSRC);
			el.removeClass('lazyImage');
		});	
	}
	
	function addElements(els){
		
		els.each(function(key,el){
			imageList.push(el);
		});
	}
	
	addElements($('.lazyImage'));
	getImages();

}

var ll = new LL();

function isElementInViewport (el) {
				 	
 	if (el instanceof jQuery) { el = el[0]; }
 	
 	var rect = el.getBoundingClientRect();
 
 	return (
 		rect.top >= 0 &&
 		rect.left >= 0 &&
 		rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) && 
 		rect.right <= (window.innerWidth || document.documentElement.clientWidth)
 	);
 }