监听 手机back键和顶部的回退

// 回退事件，监听 手机back键和顶部的回退

         pushHistory();

         window.addEventListener("popstate", function(e) {

                   window.location = ‘/index.php?m=mobile&c=slimmessage&a=slimsilkbag‘;

         }, false);

         function pushHistory() {

                            var state = {

                                 title: "title",

                                 url: "/index.php?m=mobile&c=slimmessage&a=slimsilkbag"

                            };

                          window.history.pushState(state, "title", "/index.php?m=mobile&c=slimmessage&a=slimsilkbag");

         }