// JavaScript Document

var myImgs = ['http://balloonsbypost.co.uk/images/general_images/bouquet1bg.jpg', 'http://balloonsbypost.co.uk/images/general_images/bouquet2bg.jpg', 'http://balloonsbypost.co.uk/images/general_images/bouquet3bg.jpg', 'http://balloonsbypost.co.uk/images/general_images/bouquet4bg.jpg', 'http://balloonsbypost.co.uk/images/general_images/bouquet5bg.jpg', 'http://balloonsbypost.co.uk/images/general_images/bouquet6bg.jpg'];

function preload(imgs) {
    var img;
    for (var i = 0, len = imgs.length; i < len; ++i) {
        img = new Image(240,350);
        img.src = imgs[i];
    }
}

preload(myImgs);

function loadSelctedBouquetBg(selected)
{
    var img = selected.value;
    document.getElementById("product_single_bigballoonimg").style.background = "url(http://balloonsbypost.co.uk/images/general_images/bouquet" + img + "bg.jpg)";
}