$(function () {
var u = navigator.userAgent.toLowerCase();
var platform = {
ios: function () {
return (/iphone|ipad|ipod|ios/i.test(u));
},
android: function () {
return (/android/i.test(u));
}
}
if (platform.ios()) {
$(".lanjun_az").hide();
$(".lanjun_ios").show();
}else{
$(".lanjun_ios").hide();
$(".lanjun_az").show();
}
})