var scriptLoader = {
			_loadScript: function (url, callback) {
				var head = document.getElementsByTagName('head')[0];
				var script = document.createElement('script');
				script.type = 'text/javascript';
				script.src = url;
				if (callback) {
					script.onreadystatechange = function () {
						if (this.readyState == 'loaded') callback();
					}
					script.onload = callback;
				}
				head.appendChild(script);
			},
 
			load: function (items, iteration) {
				if (!iteration) iteration = 0;
				if (items[iteration]) {
					scriptLoader._loadScript(
						items[iteration],
						function () {
							scriptLoader.load(items, iteration+1);
						}
					)
				}
			}
		}