modified JavaScript image preloader with callback

preloadImages.js

/*!
 * modified JavaScript image preloader with callback
 * gist.github.com/eikes/3925183
 * gist.github.com/englishextra/bcaca065f3fbd6d29841f9e970dcdb73
 * jsfiddle.net/englishextra/r6rf51mL/
 * @param {String|object} a string/array of paths
 * @param {Object} [cb] callback function
 * preloadImages(["//farm2.staticflickr.com/1698/24651691653_41661b1f59_z.jpg",
 * "//farm2.staticflickr.com/1575/24651691753_40fc6fdc5e_z.jpg"],
 * function(a){for(var j=0,l=a.length;j<l;j+=1){alert(a[j].src);};});
 */
var preloadImages = function (a, cb) {
	var f = 0,
	m = [];
	a = "[object Array]" === Object.prototype.toString.apply(a) ? a : [a];
	for (var g = function () {
		f += 1;
		f === a.length && cb && "function" === typeof cb && cb(m)
	}, b = 0, l = a.length; b < l; b += 1) {
		m[b] = new Image,
		m[b].onabort = g,
		m[b].onerror = g,
		m[b].onload = g,
		m[b].src = a[b];
	};
};
preloadImages(["//farm2.staticflickr.com/1698/24651691653_41661b1f59_z.jpg","//farm2.staticflickr.com/1575/24651691753_40fc6fdc5e_z.jpg"], function( a ) {
	for (var j = 0, l = a.length; j < l; j += 1) {
		alert(a[j].src);
	};
});