js自动判断浏览器类型跳转到手机版

//电脑版头部写法：
<script language="javascript">  

function is_mobile() {  

var regex_match = /(nokia|iphone|android|motorola|^mot-|softbank|foma|docomo|kddi|up.browser|up.link|htc|dopod|blazer|netfront|helio|hosin|huawei|novarra|CoolPad|webos|techfaith|palmsource|blackberry|alcatel|amoi|ktouch|nexian|samsung|^sam-|s[cg]h|^lge|ericsson|philips|sagem|wellcom|bunjalloo|maui|symbian|smartphone|midp|wap|phone|windows ce|iemobile|^spice|^bird|^zte-|longcos|pantech|gionee|^sie-|portalmmm|jigs browser|hiptop|^benq|haier|^lct|operas*mobi|opera*mini|320x320|240x320|176x220)/i;  

var u = navigator.userAgent;  

if (null == u) {  

return true;  

}  

var result = regex_match.exec(u);  

if (null == result) {  

return false  

} else {  

return true  

}  

}  

function QueryString(item)

{

    var sValue=location.search.match(new RegExp("[\?\&]"+item+"=([^\&]*)(\&?)","i"))

    return sValue?sValue[1]:sValue

}

if (QueryString("ID")!="t" && is_mobile()) {  

document.location.href= 'http://m.114369.cn/';  

}  

</script> 

 

手机版底部写法：

<p><a href="http://www.114369.cn/?q=t">电脑版</a>|<a href="javascript:void(0)">手机版</a></p>