if (document.images)
    {
      preload_image_object = new Image();
      // set image url
      image_url = new Array();
      image_url[0] = "http://www.seo4anyone.com/blog/wp-content/themes/seo4anyone/images/home-content-bg.png";
   
         preload_image_object.src = image_url[0];
    }