移动端页面宽度自适应

    
      if(/Android (\d+\.\d+)/.test(navigator.userAgent)){
        var version = parseFloat(RegExp.$1);
        if(version>2.3){
          var phoneScale = parseInt(window.screen.width)/640;
          document.write('');
        }else{
          document.write('');
        }
      }else{
        document.write('');
      }
      //微信去掉下方刷新栏
      if(navigator.userAgent.indexOf('MicroMessenger') >= 0){
        document.addEventListener('WeixinJSBridgeReady', function() {
          //WeixinJSBridge.call('hideToolbar');
        });
      }