Js代码  
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- <![if !IE]>  
- <script>      
-  
-  
-   
- $(document).ready(function(){  
-   if(document.cookie.indexOf("lu=") == -1 ){  
-       
-     setTimeout("jQuery.mxblur.interID = setInterval('jQuery.mxblur.begin()', 5)", 1500);  
-   }  
- });  
-   
- $.mxblur = {  
-     interID : null,  
-     num: 0.01,  
-     begin : function() {  
-         jQuery.mxblur.blur( jQuery.mxblur.num );  
-         if(jQuery.mxblur.num > 3) {  
-             jQuery.mxblur.num = 0;  
-           if(confirm("少年!是不是代码写多了?眼睛模糊了?")) {  
-              alert("太累啦,就该歇歇啦,愚人节快乐:)");  
-              clearInterval(jQuery.mxblur.interID );  
-              jQuery.mxblur.blur(0);  
-              document.cookie = "lu=lu";  
-           }  
-         }  
-         jQuery.mxblur.num = jQuery.mxblur.num  + 1 /100;  
-     },  
-     blur : function() {  
-         $("body").css("-webkit-filter","blur("+$.mxblur.num+"px)");  
-         $("body").css("-moz-filter","blur("+$.mxblur.num+"px)");  
-         $("body").css("-o-filter","blur("+$.mxblur.num+"px)");  
-         $("body").css("-ms-filter","blur("+$.mxblur.num+"px)");  
-         $("body").css("filter","blur("+$.mxblur.num+"px)");  
-         $("body").css("filter","url(blur.svg#"+ $.mxblur.num.toFixed(1) +")");  
-     }  
- }  
- </script>  
- <![endif]>  
 14年愚人节打开OSCHINA,然后等了2秒钟,你会发现网页全变模糊了,刚以为是浏览器问题,然后看了网页源码。就是加了一段代码就能实现。呵呵  分享给大家