Preload an array of images into browser cache

simplePreloadImages.js

function preloadImages(array) {
    if (!preloadedImages.list) {
        preloadedImages.list = [];
    }
    for (var i = 0; i < array.length; i++) {
        var img = new Image();
        img.src = array[i];
        preloadedImages.list.push(img);
    }
}

var imageURLs = [
    "url1.jpg",
    "url2.jpg",
    "url3.jpg"
];

preloadImages(imageURLs);