js判斷是否微信登陸

$(function(){
    //判斷是否微信登陸
    function isWeiXin() {
        var ua = window.navigator.userAgent.toLowerCase();
        if (ua.match(/MicroMessenger/i) == 'micromessenger') {
        	return true;
        } else {
        	return false;
        }
    }
    if(!isWeiXin()){
        var html="<article class=\"weui_msg\"><div class=\"img\"><img src=\"/SkyMis/app/freecharge/phone/images/weui-msg.png\" alt=\"\"></div><div class=\"text\">請在微信客戶端打開連接</div></article>";
        $("#shade").html(html);
    }
});