/* CSS background image */
function newImage(url, cssClass, title) {
  var $div = $("<div>").css("background-image", "url(" + url + ")");
  if (cssClass) $div.addClass(cssClass);
  if (title) $div.attr("title", title);
  var html = $div.wrap("<div>").parent().html();
  $div.unwrap();
  return html;
}