手机设备访问PC页面如果跳转到手机页面？

//例如：iphone访问www.baidu.com自动跳转到wap.baidu.com,只需在pc端模版页面引入以下js代码
//pc zhuan mobile
var mobileAgent = new Array("iphone", "ipod", "ipad", "android", "mobile", "blackberry", "webos", "incognito", "webmate", "bada", "nokia", "lg", "ucweb", "skyfire");
var browser = navigator.userAgent.toLowerCase(); 
var isMobile = false; 
for (var i=0; i<mobileAgent.length; i++)
{ 
	if (browser.indexOf(mobileAgent[i])!=-1)
	{
		isMobile = true; 
		location.href = 'http://wap.baidu.com/';
		break; 
	}
}