(function (doc, win) {            var docEl = doc.documentElement,                    resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',                    recalc = function () {                        var clientWidth = docEl.clientWidth;                        if (!clientWidth) return;                        if(clientWidth>740){clientWidth = 740}                        docEl.style.fontSize = 20 * (clientWidth / 320) + 'px';                    };            if (!doc.addEventListener) return;            win.addEventListener(resizeEvt, recalc, false);            doc.addEventListener('DOMContentLoaded', recalc, false);        })(document, window);

(function(){    var viewPortScale=0.5;    var detectBrowser = function (name) {        if (navigator.userAgent.toLowerCase().indexOf(name) > -1) {return true;} else {return false;}};    var width = parseInt(window.screen.width);    var scale = Math.ceil((width * 100) / 720) / 100;    var userScalable = 'no';    if (detectBrowser("qq/"))        userScalable = 'yes';    document.getElementById('viewport').setAttribute(        'content', 'width=720,user-scalable=' + userScalable + ',initial-scale=' + scale);})();