js设备判断

判断设备android,weixin,ios

var UserAgent=navigator.userAgent.toLowerCase();
var IS_ANDROID=false;
var IS_IOS=false;
var IS_WEIXIN=false;
var rootDomain = window.root_domain;
var CHOOSE_SCHOOL_URL="http://www."+rootDomain+"/chooseSchool/oneKeyRecommend.do?callBack=?";

if(UserAgent.match(/ipad/i) == "ipad"||UserAgent.match(/iphone os/i)) {
IS_IOS=true;
}
if(UserAgent.match(/android/i) == "android")
{
IS_ANDROID=true;
}
if(UserAgent.match(/MicroMessenger/i)=="micromessenger")
{
IS_WEIXIN=true;
}