js判断：

<script type="text/javascript"> 
 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(!bForc