var u = navigator.userAgent;
var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/);
if(isiOS){
if(u.toLowerCase().match(/MicroMessenger/i) == "micromesseng...
var u = navigator.userAgent;
var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/);
if(isiOS){
if(u.toLowerCase().match(/MicroMessenger/i) == "micromesseng...