(function ($) {
 $.fn.extend({
 "titleOver": function (e) {
  this[0].myTitle = this[0].title;
  this[0].title = "";
  //創(chuàng)建div元素
  var tooltip = "<div id='tooltip' style='border:1px solid #000000;width:auto;position:absolute;'>" + this[0].myTitle + "</div>"
  $("body").append(tooltip);
  $("#tooltip").css({ "top": (e.pageY + y) + "px", "left": (e.pageX + x) + "px" }).show('fast');
 }, "titleOut": function () {
  this[0].title = this[0].myTitle;
  $("#tooltip").remove();
 }, "titleMove": function (e) {
  $("#tooltip").css({ "top": (e.pageY + y) + "px", "left": (e.pageX + x) + "px" });
 }
 });
 //默認鼠標坐標
 var x = 10;
 var y = 20;
})(window.jQuery);

前臺的頁面:

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <title>JqueryDemo</title>
 <script type="text/javascript" src="script/jquery-1.8.3.js"></script>
 <script type="text/javascript" src="script/MOMO.js"></script>
 <script type="text/javascript">
 $(function () {
  $("a").mouseover(function (e) {
  $(this).titleOver(e);
  }).mouseout(function () {
  $(this).titleOut();
  }).mousemove(function (e) {
  $(this).titleMove(e);
  });
 });
 </script>
</head>
<body>
 <a href="#" title="這是一個鏈接">這是一個鏈接^_^！</a>
</body>
</html>

運行效果: