movile redirect

movileredirect.js

var ismobil,
  date = new Date(),
  expires,
  nameEQ,
  ca,
  c,
  i,
  x,
  redirectagent,
  redirect_devices,
  redirect_uri;
  searchstring,
  mobileregex;

function mobileCreateCookie(name, value, hours) {
  if (hours) {
    date.setTime(date.getTime() + (24 * 60 * 60 * 1000));
    expires = "; expires=" + date.toGMTString();
  } else {
    expires = "";
  }
  document.cookie = name + "=" + value + expires + "; path=/";
}

function mobileReadCookie(name) {
  nameEQ = name + "=";
  ca = document.cookie.split(';');
  for (i = 0; i < ca.length; i++) {
    c = ca[i];
    while (c.charAt(0) === ' ') {
      c = c.substring(1, c.length);
    }
    if (c.indexOf(nameEQ) === 0) {
      return c.substring(nameEQ.length, c.length);
    }
  }
  return null;
}

function mobileEraseCookie(name) {
  mobileCreateCookie(name, "", -1);
}

if (mobileReadCookie('NoMobileRedirect') === null) {
  if (/r=off/.test(location) === true) {
    mobileEraseCookie('NoMobileRedirect');
    mobileCreateCookie('NoMobileRedirect', true, 1);
    mobileEraseCookie('isMobile');
    mobileCreateCookie('isMobile', true, 1);
  } else {
    redirectagent = navigator.userAgent.toLowerCase();
    redirect_devices = ['alcatel*', 'alltel*', 'amoi*', '*android*', 'armani*', 'asus*', 'au-mic*', 'audio*', 'ax*', 'benq*', 'bird*', 'boost*', '*blackberry*', 'cdm*', 'cocoon*', 'cricket*', '*danger hiptop*', 'docomo*', '*ericsson*', '*ezwap*', 'fly*', '*google wireless transcoder*', 'go.web*', 'gr*', 'gt*', 'haier*', '*helio*', 'hitachi*', 'hpip*', 'htc*', 'i9*', '*iemobile*', 'ipaq*', '*iphone*', '*ipod*', 'kc*', 'kf*', 'kg*', 'k-jam*', 'kwc*', 'kyokx*', 'l1400*', 'lg*', '*lge*', 'lx*', 'm1000*', '*metropcs*', '*midp-2.0*', 'mitsu*', '*mmp/2.0*', 'mm*', 'mobile*', 'mozilla/2.0*', '*mobileexplorer*', 'mot*', 'mp*', 'n7710*', 'n810*', 'nec-*', '*netfront*', 'nok*', '*nokia*', 'o2*', 'obigo*', '*openwave*', 'opwv*', 'palm*', '*palmos*', 'pant*', 'panasonic*', '*palmsource*', 'philips*', 'pg*', 'pl*', 'pm*', 'pn*', 'po*', 'pu*', 'q-*', 'qc*', 'qwest*', '*opera mobi*', '*opera mini*', '*rim handheld*', 'rl*', '*rim pager*', 'sagem*', '*samsung*', 'sch*', 'scp*', 'sgh*', 'sec-s*', 'serenata*', 'sie-*', 'sharp*', '*smartphone*', '*sonyericsson*', 'sph-*', '*sprint*', '*symbianos*', '*symbian os*', '*t-mobile*', '*up.browser*', '*up.link*', 'vodafone*', '*vzw*', '*windows ce*'];
    for (x in redirect_devices) {
      mobileregex = new RegExp('^' + redirect_devices[x].replace(/\*/g, '.*') + '$');
      if (mobileregex.test(redirectagent) === true) {
        ismobil = true;
        // Not clear on where redirect_uri comes from...
        location.replace('http://m.complex.com' + redirect_uri);
        // location.replace('http://m.complex.com' + location.pathname);
        break;
      }
    }
    if (ismobil !== true) {
      mobileEraseCookie('NoMobileRedirect');
      mobileCreateCookie('NoMobileRedirect', true, 1);
    }
  }
}