functionredirecttohost{
varhost=;=""+host;}varerrormsgdata={"400":"请求出现语法错误","401":"没有访问权限","403":"服务器拒绝执行该请求","404":"指定的页面不存在","405":"请求方法对指定的资源不适用","406":"客户端无法接受相应数据","408":"等待请求时服务器超时","409":"请求与当前资源的状态冲突，导致请求无法完成","410":"请求的资源已不存在，并且没有转接地址","500":"服务器尝试执行请求时遇到了意外情况","501":"服务器不具备执行该请求所需的功能","502":"网关或代理服务器从上游服务器收到的响应无效","503":"服务器暂时无法处理该请求","504":"在等待上游服务器响应时，网关或代理服务器超时","505":"服务器不支持请求中所用的http版本","1":"无法解析服务器的dns地址","2":"连接失败","-7":"操作超时","-100":"服务器意外关闭了连接","-101":"连接已重置","-102":"服务器拒绝了连接","-104":"无法连接到服务器","-105":"无法解析服务器的dns地址","-109":"无法访问该服务器","-138":"无法访问网络","-130":"代理服务器连接失败","-106":"互联网连接已中断","-401":"从缓存中读取数据时出现错误","-400":"缓存中未找到请求的条目","-331":"网络已暂停","-6":"无法找到该文件或目录","-310":"重定向过多","-324":"服务器已断开连接，且未发送任何数据","-346":"收到了来自服务器的重复标头","-349":"收到了来自服务器的重复标头","-350":"收到了来自服务器的重复标头","-118":"连接超时"};varecode=("ecode")nerhtml;varemsg=errormsgdata[ecode];=emsg;("emsg")nerhtml=emsg;("emsg_t")nerhtml=ecode+"错误！";