常用JS代码段 （JS获取地址栏get参数 JS判断手机访问等）

1.获取GET参数

function GetQueryString(name){     var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");     var r = window.location.search.substr(1).match(reg);     if(r!=null)return  unescape(r[2]); return null;}

2.判断设备

function checkMobile(){      var isiPad = navigator.userAgent.match(/iPad/i) != null;      if(isiPad){          return false;      }      var isMobile=navigator.userAgent.match(/iphone|android|phone|mobile|wap|netfront|x11|java|opera mobi|opera mini|ucweb|windows ce|symbian|symbianos|series|webos|sony|blackberry|dopod|nokia|samsung|palmsource|xda|pieplus|meizu|midp|cldc|motorola|foma|docomo|up.browser|up.link|blazer|helio|hosin|huawei|novarra|coolpad|webos|techfaith|palmsource|alcatel|amoi|ktouch|nexian|ericsson|philips|sagem|wellcom|bunjalloo|maui|smartphone|iemobile|spice|bird|zte-|longcos|pantech|gionee|portalmmm|jig browser|hiptop|benq|haier|^lct|320x320|240x320|176x220/i)!= null;      if(isMobile){          return true;      }      return false;  }