1 User_Agent_List = [‘Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_8; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50‘,  2                    ‘Mozilla/5.0 (Windows; U; Windows NT 6.1; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50‘,  3                    ‘Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0;‘,  4                    ‘Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0)‘,  5                    ‘Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)‘,  6                    ‘Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)‘,  7                    ‘Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0.1) Gecko/20100101 Firefox/4.0.1‘,  8                    ‘Mozilla/5.0 (Windows NT 6.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1‘,  9                    ‘Opera/9.80 (Macintosh; Intel Mac OS X 10.6.8; U; en) Presto/2.8.131 Version/11.11‘, 10                    ‘Opera/9.80 (Windows NT 6.1; U; en) Presto/2.8.131 Version/11.11‘, 11                    ‘Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_0) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11‘, 12                    ‘Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Maxthon 2.0)‘, 13                    ‘Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; TencentTraveler 4.0)‘, 14                    ‘Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)‘, 15                    ‘Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; The World)‘, 16                    ‘Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; SE 2.X MetaSr 1.0; SE 2.X MetaSr 1.0; .NET CLR 2.0.50727; SE 2.X MetaSr 1.0)‘, 17                    ‘Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; 360SE)‘, 18                    ‘Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Avant Browser)‘, 19                    ‘Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)‘, 20                    ‘Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5‘, 21                    ‘Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5‘, 22                    ‘Mozilla/5.0 (iPad; U; CPU OS 4_3_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8J2 Safari/6533.18.5‘, 23                    ‘Mozilla/5.0 (Linux; U; Android 2.3.7; en-us; Nexus One Build/FRF91) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1‘, 24                    ‘MQQBrowser/26 Mozilla/5.0 (Linux; U; Android 2.3.7; zh-cn; MB200 Build/GRJ22; CyanogenMod-7) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1‘, 25                    ‘Opera/9.80 (Android 2.3.4; Linux; Opera Mobi/build-1107180945; U; en-GB) Presto/2.8.149 Version/11.10‘, 26                    ‘Mozilla/5.0 (Linux; U; Android 3.0; en-us; Xoom Build/HRI39) AppleWebKit/534.13 (KHTML, like Gecko) Version/4.0 Safari/534.13‘, 27                    ‘Mozilla/5.0 (BlackBerry; U; BlackBerry 9800; en) AppleWebKit/534.1+ (KHTML, like Gecko) Version/6.0.0.337 Mobile Safari/534.1+‘, 28                    ‘Mozilla/5.0 (hp-tablet; Linux; hpwOS/3.0.0; U; en-US) AppleWebKit/534.6 (KHTML, like Gecko) wOSBrowser/233.70 Safari/534.6 TouchPad/1.0‘, 29                    ‘Mozilla/5.0 (SymbianOS/9.4; Series60/5.0 NokiaN97-1/20.0.019; Profile/MIDP-2.1 Configuration/CLDC-1.1) AppleWebKit/525 (KHTML, like Gecko) BrowserNG/7.1.18124‘, 30                    ‘Mozilla/5.0 (compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; HTC; Titan)‘, 31                    ‘UCWEB7.0.2.37/28/999‘, 32                    ‘NOKIA5700/ UCWEB7.0.2.37/28/999‘, 33                    ‘Openwave/ UCWEB7.0.2.37/28/999‘, 34                    ‘Mozilla/4.0 (compatible; MSIE 6.0; ) Opera/UCWEB7.0.2.37/28/999‘, 35                    ‘UCWEB7.0.2.37/28/999‘, 36                    ‘NOKIA5700/ UCWEB7.0.2.37/28/999‘, 37                    ‘Openwave/ UCWEB7.0.2.37/28/999‘, 38                    ‘Mozilla/4.0 (compatible; MSIE 6.0; ) Opera/UCWEB7.0.2.37/28/999‘39                    ]