Async For Loop

asyncLoop.js

	/**
	 * Class
	 */
		
	var AsyncLoop = function(list,fn,customDelay){
		var listLength = list.length;
		var i = 0;
		var currentListItem = null;
		var asyncDelay = customDelay || 0;
		var self = this;
		
		this.startLoop = function(){
			currentListItem = list[i];
			var looper = self.startLoop;
			if(i < listLength){
				setTimeout(function(){
					fn(currentListItem,i);
					i++;
					looper();
				},asyncDelay);
			}
		};
	};
		
 	 /**
	 *  Usage
	 */
	  var asyncLoop = new AsyncLoop(nodes,function(currentNode,i){
	    currentNode[ currentNode.tagName !== 'LINK' ? 'src' : 'href' ] = currentNode.getAttribute('data-async-load');
	    currentNode.removeAttribute('data-async-load');
	  });
	  asyncLoop.startLoop();