js判断手机浏览器

最新浏览器识别合并。

demo：http://v.qq.com -> http://v.qq.com/h5 　　　　http://v.qq.com/ -> http://v.qq.com/h5 　　　　http://v.qq.com/h5 -> http://v.qq.com/h5

<script type="text/javascript">
(function(W){
if(!/\/h5/.test(W.location.pathname) && /iphone|nokia|sony|ericsson|mot|samsung|sgh|lg|philips|panasonic|alcatel|lenovo|cldc|midp|wap|mobile|htc|sharp|sie-|ipod|blackberry|meizu|android|netfront|symbian|ucweb|windowsce|palm|operamini|operamobi|openwave|nexusone/i.test(navigator.userAgent.toLowerCase())){
//W.location.href = '跳转地址';

W.location.href = 'http://' + W.location.host + W.location.pathname.replace(/\/$/,'') +'/h5'+ W.location.search + W.location.hash

}

})(window)
</script>

没有判断协议，默认http://，