user_agent.js

(function(window, $) {
    //'use strict';

    var Device = function() {
      var u = window.navigator.userAgent.toLowerCase();
      return {
        isTablet: (u.indexOf("windows") != -1 && u.indexOf("touch") != -1) || u.indexOf("ipad") != -1 || (u.indexOf("android") != -1 && u.indexOf("mobile") == -1) || (u.indexOf("firefox") != -1 && u.indexOf("tablet") != -1) || u.indexOf("kindle") != -1 || u.indexOf("silk") != -1 || u.indexOf("playbook") != -1,
        isMobile: (u.indexOf("windows") != -1 && u.indexOf("phone") != -1) || u.indexOf("iphone") != -1 || u.indexOf("ipod") != -1 || (u.indexOf("android") != -1 && u.indexOf("mobile") != -1) || (u.indexOf("firefox") != -1 && u.indexOf("mobile") != -1) || u.indexOf("blackberry") != -1
      };
    };

    var device = new Device();

    /*  UA振り分けでSPサイトを表示 */
    if (device.isMobile) {} else if (device.isTablet) {} else {
      var redirect = '../';
      location.href = redirect;
    }

  }