function preloadImages() {
    var arrayOfImages = getImages();
    

    $(arrayOfImages).each(function () {        
        $('<img/>')[0].src = this;
    });

    $('#phone2').attr('src', arrayOfImages[1]);
    $('#dualphone').attr('src', arrayOfImages[2]);
    $('#fj').attr('src', arrayOfImages[6]);

}

function getImages() {
    var arrayOfImages = ["images/toptitle{0}.png", "images/phone2{0}.png", "images/dualphone{0}.png", "images/fb1{0}.jpg", "images/fb2{0}.jpg", "images/fb3{0}.jpg", "images/fj{0}.png"];
    var width = $(window).width();
    var imageSuffix = '';
    var result = new Array();

    if (width > 1024) imageSuffix = '';
    if (width <= 1024 && width > 800) imageSuffix = '_1024';
    if (width <= 800 && width > 640) imageSuffix = '_800';
    if (width <= 640 && width > 320) imageSuffix = '_640';
    if (width <= 320) imageSuffix = '_320';

    $(arrayOfImages).each(function () {
        result.push(this.replace('{0}', imageSuffix));        
    });

    return result;
}