var bForcepc = fGetQuery("dv") == "pc";
function fBrowserRedirect(){
 var sUserAgent = navigator.userAgent.toLowerCase();
 var bIsIpad = sUserAgent.match(/ipad/i) == "ipad"; 
 var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";
 var bIsMidp = sUserAgent.match(/midp/i) == "midp";
 var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
 var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
 var bIsAndroid = sUserAgent.match(/android/i) == "android";
 var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
 var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";
 if(bIsIpad){
  var sUrl = location.href;    
  if(!bForcepc){
   window.location.href = "http://ipad.mail.163.com/";
  }
 }
 if(bIsIphoneOs || bIsAndroid){
  var sUrl = location.href;    
  if(!bForcepc){
   window.location.href = "http://smart.mail.163.com/";
  }
 }
 if(bIsMidp||bIsUc7||bIsUc||bIsCE||bIsWM){
  var sUrl = location.href;    
  if(!bForcepc){
   window.location.href = "http://m.mail.163.com/";
  }
 }
}
function fGetQuery(name){//获取参数值
 var sUrl = window.location.search.substr(1);
 var r = sUrl.match(new RegExp("(^|&)" + name + "=([^&]*)(&|$)"));
 return (r == null ? null : unescape(r[2]));
}
function fShowVerBlock(){ 
 if(bForcepc){
  document.getElementById("dv_block").style.display = "block";
 }
 else{
  document.getElementById("ad_block").style.display = "block";
 }
}
fBrowserRedirect();