//var num = 1 / window.devicePixelRatio;
document.querySelector('meta').setAttribute('name', 'viewport')
//document.querySelector('meta').setAttribute('content', 'width=device-width, initial-scale=' + num + ', maximum-scale=' + num + ', minimum-scale=' + num + ', user-scalable=no');
document.querySelector('meta').setAttribute('content', 'width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no');
browserRedirect();
function browserRedirect(){
	var h = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
	var w = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
	var width = w > h ? h : w;
	var sUserAgent = navigator.userAgent.toLowerCase();
	var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";
	var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";
	var bIsMidp = sUserAgent.match(/midp/i) == "midp";
	var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
	var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
	var bIsAndroid = sUserAgent.match(/android/i) == "android";
	var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
	var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";
	var bIsWX = sUserAgent.match(/MicroMessenger/i) == "micromessenger";
	//				document.writeln("您的浏览设备为：");
	if(bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM || bIsWX) {
		width = width;
		//					document.writeln("phone");
	} else {
		width = 640;
		//					document.writeln("pc");
	}
	var fz = ~~(width * 100000 / 64) / 10000;
	document.getElementsByTagName("html")[0].style.cssText = 'font-size: ' + fz + "px";
	var realfz = ~~(+window.getComputedStyle(document.getElementsByTagName("html")[0]).fontSize.replace('px', '') * 10000) / 10000
	if(fz !== realfz) {
		document.getElementsByTagName("html")[0].style.cssText = 'font-size:' + fz * (fz / realfz) + "px";
	}
}

//window.onresize = function(){
	//browserRedirect();
//}