A javascript image preloader. Accepts an array of image paths and then initiates a callback when done loading.

preloader.js

    // Accepts array of image paths relative to the current page.
    var preLoadImages = function( srcs, callback ) {

        if ( srcs.length ) {

            var cache = [],
                args_len = srcs.length;

            for (var i = args_len; i--;) {

                var cacheImage = document.createElement('img');
                cacheImage.src = srcs[i];
                cacheImage.onload = callback;
                cache.push(cacheImage);

            }

        }

    };