js判斷手機瀏覽器

最新瀏覽器識別合并。

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

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<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 = '跳轉地址';
W.location.href = 'http://' + W.location.host + W.location.pathname.replace(/\/$/,'') +'/h5'+ W.location.search + W.location.hash}  })(window)  
</script> 

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?沒有判斷協議，默認http://，