var imgArr;
$(document).ready(function(){
    preload(["/vehiclephotos/1597721/huge/15a2a5b5-68fa-4026-a186-df599c421f03.jpg"]);
$("#photo-main").attr("src","/vehiclephotos/1597721/huge/15a2a5b5-68fa-4026-a186-df599c421f03.jpg");

});

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