加载图片失败后显示系统默认图片

 1 <!DOCTYPE html>
 2 <html xmlns="http://www.w3.org/1999/xhtml">
 3 <head>
 4     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 5     <title></title>
 6     <script src="jquery-1.7.1.js"></script>
 7     <script type="text/javascript">
 8         $(document).ready(function () {
 9             $("img").attr("onerror", "showErroImg(this,2);");
10         });
11         function showErroImg(imgObj, maxErrorNum) {
12             if (maxErrorNum > 0) {
13                 imgObj.onerror = function () {
14                     showErroImg(imgObj, maxErrorNum - 1);
15                 };
16                 setTimeout(function () {
17                     imgObj.src = "bg_fn_blog.png";
18                 }, 500);
19             } else {
20                 imgObj.onerror = null;
21                 imgObj.src = "";
22             }
23         }
24 
25     </script>
26 </head>
27 <body>
28     <img  src="sweiku.com.jpge" />
29     <img  src="sweiku.com.jpge" />
30     <img  src="sweiku.com.jpge" />
31     <img  src="sweiku.com.jpge" />
32     <img  src="sweiku.com.jpge" />
33     <img  src="sweiku.com.jpge" />
34 </body>
35 </html>