(function($) {
  $.fn.backgrounder = function(options) {
    var defaults = { element : 'body' };
    var options = $.extend(defaults, options);
// Get the image we're using
    var img = $(this).children('img').first();
// Get the image source
var src = $(img).attr('src');
// Hide the original element
$(this).hide();
// Make parent relative
w = options.element == 'body' ? $(window).width() : $(options.element).width();
h = options.element == 'body' ? $(window).height() : $(options.element).height();
// Create a new div
$('<div id="backgrounder-container"></div>')
      .css({'position':'absolute','z-index':-100,'left':0,'top':0,'overflow':'hidden','width':w,'height':h})
.appendTo($(options.element))
// Create a new image
    $('<img />')
      .appendTo($('#backgrounder-container'))
      .attr('src',src)
      .css({'position':'absolute'})
.hide()
      .load(function() {
        resizeBackgrounder(this, options.element);
$(this).fadeIn();
      })
// Resize handler
$(window).resize(function() {
       var newW = options.element == 'body' ? $(window).width() : $(options.element).width();
var newH = options.element == 'body' ? $(window).height() : $(options.element).height();
$('#backgrounder-container').css({'width':newW,'height':newH});
       resizeBackgrounder('#backgrounder-container img:first', options.element);
    })
// Update function
function resizeBackgrounder(item, elem) {

      if (elem != 'body') {
w = $(elem).width();
h = $(elem).height();
} else {
w = $(window).width();
h = $(window).height();
}

      var ow = $(item).width();
      var oh = $(item).height();

      if (ow / oh > w / h) { // image aspect ratio is wider than browser window
        var scale = h / oh;
        $(item).attr({'width':ow * scale,'height':oh * scale});
      } else {
        var scale = w / ow;
        $(item).attr({'width':ow * scale,'height':oh * scale});
      }
      $(item).css({'left':-(($(item).width()-w)/2),'top':-(($(item).height()-h)/2)});
    }

// Return
    return this.each(function() { });
  };
}) (jQuery);