$.preloadImages = function() {
  for (var i = 0; i < arguments.length; i++) {
    $("<img />").attr("src", arguments[i]);
  }
}

$.preloadImages('/img/surg-face.jpg',
	'/img/surg-face-hover.jpg',
	'/img/surg-breast.jpg',
	'/img/surg-breast-hover.jpg',
	'/img/surg-body.jpg',
	'/img/surg-body-hover.jpg',
	'/img/non-face2-870x870.jpg',
	'/img/non-face-hover2-870x870.jpg',
	'/img/non-body2-870x870.jpg',
	'/img/non-body-hover2-870x870.jpg');

$.preloadImages = function() {
  for (var i = 0; i < arguments.length; i++) {
    $("<img />").attr("src", arguments[i]);
  }
}

$.preloadImages('');