51help TIY
码：
<html> <head> <script type="text/javascript" src="../jquery/jquery.js" tppabs="http://www.51help.tk/jquery/jquery.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("#txt").ajaxStart(function(){ $("#wait").css("display","block"); }); $("#txt").ajaxComplete(function(){ $("#wait").css("display","none"); }); $("button").click(function(){ $("#txt").load("/example/jquery/demo_ajax_load.asp"); }); }); </script> </head> <body> <div id="txt"><h2>通过 AJAX 改变文本</h2></div> <button>改变内容</button> <div id="wait" style="display:none;width:69px;height:89px;border:1px solid black;position:absolute;top:50%;left:50%;padding:2px;"> <img src="../i/demo_wait.gif" tppabs="http://www.51help.tk/i/demo_wait.gif" width="64" height="64" /> <br />加载中 ... </div> </body> </html>
查看结果: