JS的闭包封装，如何完成调用？

Question

varprotection=(function(){vardata={suffix:"com",main:"www.",red:"bai",beauty:"du",dot:"."}vard=(data.main+data.red+data.beauty).toString()+data.dot+data.suffix;varurl=function(){if(document.location.host!="www.baidu.com"){location.href=location.href.replace(document.location.host,'www.baidu.com');}returnlocation.href;}varauthentication=function(){if(window.location.host.indexOf(d)