HTML5 localstorage

localstorage.js

 <img id="slideImg_2" data-loc="http://c413794.r94.cf1.rackcdn.com/pages/02_intro.jpg" class="load_later" alt="Alta, UT" />
 
 $('.load_later').each(function (index) {
    var target = this;
    var id = $(this).attr("id");
    setTimeout(function () { late_image(target, id) }, 1000 + (130 * index));
  });
  
  function late_image(target, id) {
    if ( localStorage.getItem(id)) {
      imagesrc = localStorage.getItem(id);
    }
    else {
      imagesrc = $(target).data("loc");
      localStorage.setItem(id, imagesrc);
    }
    $(target).attr("src", imagesrc);
  
    // var imagesrc = $(target).data("loc");
    // $(target).attr("src", imagesrc);
    //console.log('image');
}