国内浏览器检测

function checkChineseBrowser(){
        var userAgent = navigator.userAgent;
        
        var browserKeyArr = [{
            name:‘搜狗‘,
            domKey:‘sougou‘,
            agentKey:‘MetaSr‘
        },{
            name:‘QQ‘,
            domKey:‘qq‘,
            agentKey:‘QQBrowser‘
        },
        {
            name:‘猎豹‘,
            domKey:‘liebao‘,
            agentKey:‘LBBROWSER‘
        },{
            name:‘淘宝‘,
            domKey:‘taobao‘,
            agentKey:‘TaoBrowser‘
        },{
            name:‘遨游‘,
            domKey:‘aoyou‘,
            agentKey:‘Maxthon‘
        }];
        
        
        for(var i = 0,length = browserKeyArr.length; i < length ; i++){
            var pattern = new RegExp(browserKeyArr[i].agentKey);
            
            if(pattern.test(userAgent)){
                return browserKeyArr[i].domKey;
            }
        }

        return userAgent;

    }