支付宝的kill-ie

支付宝首页改版了，新首页很漂亮，可是对于老版本IE用户怎么办，支付宝是这么做的！

<!--[if lte IE 7]>
  <script type="text/javascript">
    window.location.href = 'https://www.alipay.com/x/kill-ie.htm';
  </script>
5 <![endif]-->

下面是支付宝用的css reset样式：

/* reset样式 */

html{color:#000;background:#fff;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%}
body{margin:0;padding:0;font:12px/1.5 tahoma,arial,"Hiragino Sans GB","Microsoft Yahei","5b8b4f53";min-width:1000px;}
*{margin:0;padding:0}
ul{list-style:none}
h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:500}
a,a:link,a:hover,a:active{color:#000;}
a:hover{text-decoration:none;border-bottom:1px solid #000;}
ins,a{text-decoration:none}
.clearfix:after{visibility:hidden;display:block;font-size:0;content:" ";clear:both;height:0}
.clearfix{zoom:1}

/* 结束reset样式 */

操作cookie的方法：

<script>
              (function () {
                   var Cookie = {
                  get: function (name) {
                    var name = name + "=";
                    var ca = document.cookie.split(';');
                    for(var i=0; i<ca.length; i++) {
                        var c = ca[i];
                        while (c.charAt(0)==' ') c = c.substring(1);
                        if (c.indexOf(name) != -1) return c.substring(name.length, c.length);
                    }
                    return "";
                  },
                  remove: function (name,path,domain) {
                      if (this.get(name)) {
                          document.cookie = name + "=" 
                          + ((path) ? "; path=" + path : "") 
                          + ((domain) ? "; domain=" + domain : "") 
                          + "; expires=Thu, 01-Jan-70 00:00:01 GMT";
                      }
                  }
                };
                
                document.getElementById("linkReturnOldVersion").onclick = function () {
                  Cookie.remove('NEW_ALIPAY_HOME', '/', 'alipay.com');
                  location.href = '//my.alipay.com/portal/i.htm';
                };
              })();
             
            </script>

恩，就这样！