//
// Sitewide HBS analytics package
// 
// $Author: jgriffith $
// $Date: 2008/07/28 19:41:12 $
// $Revision: 1.31 $
//

(function(){

var Analytics = {

   options: {
   
      // the parameter that triggers a search event
      
      searchParams: ['qt'],
      
      // if we want a domain to rollup into a different site variable
      
      siteOverrides: {
                      'member.exed.hbs.edu':'www.exed.hbs.edu',
                      'apps.alumni.hbs.edu':'www.alumni.hbs.edu'
                     },
                    
      // ITG owned domains
                     
      itgDomains: ['hbsapps.hbs.edu'],
      
      // This page's title
      title: null,

      // Automatically setup click events
      autoEvents: true,
      
      // a hash of user paraters to mark the page as being an admin pageview
      //                 analytics.settings({
      //                   'siteAdmins':{'role':['Staff','Faculty'] }
      //                 });      
                       
      siteAdmins: null,

      // google analytics trackers
      gaTrackers: [],

      // needs to be set if the site parameter isn't specific enough
      // eg, mba
      
      profile: null,

      // a way to override the url of this pageview
      url: null,
      
      // should be set to the domain, eg www.library.hbs.edu 
      
      site: null
      
   },
   
   version: 1,

   init: function() {
      // Initializes variables before tag is sent
      
      if (!Analytics.options.site) { Analytics.options.site = Util.baseHref() || document.location.host; }
      
      var site = Analytics.options.siteOverrides[Analytics.options.site] || Analytics.options.site;
      
      User.init();
      if (User.role) {Unica.set('role',User.role)}  // removed since google sends separate ping for this Google.each( function(ga){ga._setVar(User.role)} ) 
      if (User.roleDetail) {Unica.set('roleb',User.roleDetail)}
      if (User.id) {Unica.set('un',User.id)}
      if (User.campaign) {Unica.set('campaign',User.campaign)}
      Unica.set('site',site)
      if (Analytics.options.profile) { Unica.set('profile',Analytics.options.profile) }
      Unica.set('flash',Util.flashVersion());
 
      // if there is an override url then use it, else leave the lc paramater alone
      if (Analytics.options.url) { Unica.set('lc',Analytics.options.url) }

      // pull search values
      var searchParams = Analytics.options.searchParams;
      for (var i=0;i<searchParams.length;i++) {
         var value = Util.getParam(searchParams[i]);
         if (value) {Analytics.search(value)};
      }
      
      // set the creator variable as itg
      if ( Util.arrayContains(Analytics.options.itgDomains,document.location.host) ) {
          Analytics.itg(true);
      }

      // automatically setup click events
      if (Analytics.options.autoEvents) {
         Analytics.setupLinkEvents();
      }
      
      if (User.isAdmin()) {
         Unica.set('pvtype','admin')
      } else {
         Unica.set('pvtype','default')
      }
   },

   settings: function(opt) {
      for (var v in opt) {
        Analytics.options[v] = opt[v]
      }
   },

   save: function() {
      // When page has finished loading, send the data
      
      // quit if this function has already been called
      if (arguments.callee.done) return;
      arguments.callee.done =true;

      Analytics.init()
      
      var title = Analytics.options.title || document.title;
      Unica.setnext('title',title);
      if (Analytics.options.url) { Unica.set('lc',Analytics.options.url) }
      Unica.ping()  // just send the data for unica, we're assuming google pageview has already been sent
      
      // send a noresults event for the search engine
      if (document.getElementById('nodocumentsfound')) {Analytics.event('noresults'); }
      
      // if we see a redirect param, send a redirect event
      var r = Util.getCookie('AnalyticsReferrer');
      if (r) {
         //Unica.setnext('ev','redirect');  can't use a redirect event on a non-existent page
         Unica.setnext('lc',r);
         Unica.setnext('rf',document.referrer);
         Unica.ping();
         Google.each(function(ga){ga._trackPageview(Util.gaPath(r,'redirect'))});
         Util.delCookie("AnalyticsReferrer");
      }

      // run everything in the post save queue
      Util.runQueue(Analytics._postSaveQueue)
   },

   view: function(path,opt) {
     if (!opt) {opt={};}
     if (Analytics._view_seen[path]) {return}; // don't send two views for the same page
     if (path) {
        // a view event to another page, with this one as the referral
        Unica.setnext('lc',Util.absPath(path) );
        Unica.setnext('rf',document.location.href);
        Google.each(function(ga){ga._trackPageview(Util.gaPath(path,'offsite'))});
     } 
     Unica.ping();
     Analytics._view_seen[path] = true;
     if (opt.sleep) {
        Util.sleep(100);
     }
   },
   _view_seen: {},
   
   error: function(status) {
     // Tag as error page
     Unica.setnext('sc',status);
     Google.each(function(ga){
        ga._trackPageview('/error/'+status+'/'+document.location.pathname)
     });
   },

   event: function(name) {
     Unica.setnext('ev',name);
     Unica.ping();
   },
   
   search: function(qt) {
     // search query
     Unica.set('lsearch',qt)
   },
   
   itg: function(v) {
      if (v) {Unica.set('owner','itg')}
   },

   campaignStart: function(cid) {
      User.setCampaign(cid);
   },

   conversion: function(name) {
      Analytics._postSave(function() {
         Analytics.event(name);
         User.clearCampaign();
      })
   },

   _postSaveQueue: [],
   _postSave: function(action) {
      if (Analytics.save.done) {
         action();
      } else {
         Analytics._postSaveQueue.push(action);
      }
   },

   setupLinkEvents: function() {
      var alllinks = document.getElementsByTagName("a");
      for (var i=0,il=alllinks.length;i<il;i++) { Util.addEvent(alllinks[i],'click',Analytics._linkClick) }
   },

   _linkClick: function() {
      var a = this;
      if (Util.isDownload(a) || Util.isOffsite(a)) {
         if (a.href) {Analytics.view(a.href,{sleep:true});};
      }
   },

   set: function(k,v) {
      Unica.set(k,v)
   },
  
   reset: function() {
      Unica.reset();
   }

}

var Unica = {
   // these 3 variables are kept around for unit testing
   _pairs:{},
   _nextpairs:{},
   _tagsent: 0,

   ping: function(callback) {
     if (callback) {
        // allows for a custom function to be run after the data has been sent
        var f = document.createElement('form');
        f.submit = callback    
        ntptSubmitTag(f);
     } else {
        ntptEventTag(); 
     }
     Unica._tagsent++;
   },

   // sets the parameter globally
   set: function(k,v) {
      Unica._pairs[k] = v;
      ntptAddGlobalPair(k,v)
   },
   
   // just sets it for the next ping
   setnext: function(k,v) {
      Unica._nextpairs[k] = v;
      ntptAddPair(k,v);
   },

   reset: function() {
      Unica._nextpairs = {};
      Unica._pairs = {},
      Unica._tagsent = 0;
   }

}

var Google = {   
   each: function(fn) {
     Util.arrayEach(Analytics.options.gaTrackers,function(ga){
        fn(ga)
     });
   }
}

var User = {
   role: null,
   roleDetail: null,
   id: null,
   campaign: "None",

   cached: ['role','roleDetail','id','campaign'],   

   init: function() {
     arguments.callee.done = true
     User.id = User._getIdFromCookie();
     if (User.load()) {
        // loaded the data from a cookie cache
        //console.info('loaded');
     } else if (User.id) {
        // need to fetch the data
        User._fetchUserInfo();
        //console.info('fetched');
     } else {
        // we know nothing about the user and they've never logged in
        User._fetchUserInfo();
     }
     //console.info(User);

     // run everything in the post init queue
     Util.runQueue(User._postInitQueue)
   },

   setCampaign: function(cid) {
     User._postInit(function() {
        User.campaign = cid;
        User.store();
     });
   },

   clearCampaign: function() {
     User.campaign = "None";
     User.store();
   },
   
   isAdmin: function() {
      if (Analytics.options.siteAdmins) {
        var params = Analytics.options.siteAdmins;
        for (var v in params) {
           if (User[v] && Util.arrayContains(Util.toArray(params[v]),User[v]) ) {
              return true;
           }
        }
      }
      return false;
   },

   _postInitQueue: [],
   _postInit: function(action) {
       if (User.init.done) {
         action();
     } else {
         User._postInitQueue.push(action);
     }
   },

   _fetchUserInfo: function() {
        var roles = User._getRolesFromCookie();
        User.role = roles[0];
        User.roleDetail = roles[1];

        if (User.role == 'Staff') {
            // not enough info in the cookie, so we need to do a remote lookup
            var script = document.createElement('script');
            script.type = "text/javascript";
            script.src = "http://www.hbs.edu/cgi-bin/analytics/userdata.js";
            try { document.getElementsByTagName('head')[0].appendChild(script); }
            catch (e) {};
        } 

        // if we have data, store it
        if (User.id && User.role) {User.store()}  
   },

   userdataCallback: function(vars) {
      if (User.id == vars['id']) {
         for (var key in vars) {
            User[key] = vars[key];
         } 
      }
      // update the data store
      User.store();  
   },

   _getIdFromCookie: function() {
     var hbscookie = Util.getCookie("HBSCOOKIE")
     if (/:/.test(hbscookie)) {
        return hbscookie.split(":")[0];     
     } else {
        return null;
     }
   },

   _getRolesFromCookie: function() {
     var hbscookie = Util.getCookie("HBSCOOKIE");
     var klass = User._getClassFromCookie(hbscookie);
     var decade = User._getDecadeFromClass(klass);
     
     if (!/@/.test(hbscookie)) {
        return ["External","Non HBS"]
     } else if (/alumni.hbs.edu/.test(hbscookie) && decade) {
        return ["Alumni",decade];
     } else if (/alumni.hbs.edu/.test(hbscookie)) {
        return ["Alumni","Exed Alum"];
     } else if (/@bschool/.test(hbscookie)) {
        return ["Staff","Staff"]
     } else if (/@mba/.test(hbscookie) && klass) {
        return ["MBA","MBA "+klass]
     } else if (/exed.hbs.edu/.test(hbscookie)) {
        return ["Exed","Exed"]
     } else if (/@public/.test(hbscookie)) {
        return ["External","Public"]
     } else if (/@crossreg/.test(hbscookie)) {
        return ["External","Crossreg"]
     } else if (/@partners/.test(hbscookie)) {
        return ["External","Partners"]
     } else {
        return ["External","Non HBS"]
     }
   },
   
   _getClassFromCookie: function(cookie) {
     var rx = new RegExp('mba(\\d+)');
     var m = cookie.match(rx);
     if (m && m[1]) {
        return m[1];
     } else {
        return '';
     }
   },

   _getDecadeFromClass: function(klass) {
     var rx = new RegExp('(\\d\\d\\d)\\d');
     var m = klass.match(rx);
     if (m && m[1]) {
        return "MBA "+m[1]+"0s";
     } else {
        return '';
     }
   },

   load: function() {
     // load user parameters from a cookie cache
     // if the user isn't logged in, this still works

     var datastr = Util.getCookie("UnicaData");

     // this is some other users cache
     if (User.id && User.id != Util.getParam('id',datastr)) {return false;}

     // flush cookie if it's an old version
     if (Util.getParam('v',datastr) != Analytics.version) {return false;}

     var hasData = false;
     for (var i=0;i<User.cached.length;i++) {
        var key = User.cached[i];
        var val = Util.getParam(key,datastr); 
        if (val) {
           User[key] = val;
           hasData = true;
        }
     }     
     return hasData;
   },

   store: function() {
     // save user parameters into a cookie
     var s=[];
     for (var i=0;i<User.cached.length;i++) {
        var key = User.cached[i];
        var val = User[key];
        if (val) {
           val = val.replace(' ','%20');
           val = val.replace(';','%3B');
           val = val.replace(',','%2C');
           s.push(key+"="+val);
        }
     }
     s.push("v="+Analytics.version)
     var v = s.join("&");
     var cookie_date = new Date ();
     cookie_date.setTime ( cookie_date.getTime() + (1000*60*60*24*30*6) ); // 6 months
     document.cookie = "UnicaData="+v+"; domain=.hbs.edu; path=/; expires="+cookie_date.toGMTString()
   }
   
}


var Util = {
    getCookie: function(cookiename) {
        var cookiestring=""+document.cookie;
        var index1=cookiestring.indexOf(cookiename);
        if (index1==-1 || cookiename=="") return "";
        var index2=cookiestring.indexOf(';',index1);
        if (index2==-1) index2=cookiestring.length;
        return unescape(cookiestring.substring(index1+cookiename.length+1,index2));
    },
    
    delCookie: function(cookiename) {
        var cookie_date = new Date ();  // current date & time
        cookie_date.setTime ( cookie_date.getTime() - 1 );
        document.cookie = cookiename+"=; expires=" + cookie_date.toGMTString() + "; domain=.hbs.edu; path=/";
    },
   
    getParam: function(param,paramStr) {
        // gets a parameter value from the query string
        var query = paramStr || window.location.search.substring(1);
        var parms = query.split('&');
        for (var i=0; i<parms.length; i++) {
           var pos = parms[i].indexOf('=');
           if (pos > 0) {
              var key = parms[i].substring(0,pos);
              var val = parms[i].substring(pos+1);
              val = val.replace(/\+/g,' ');
              if (key == param) {
                return unescape(val)
              }
           }
        }
        return null
    },

    absPath: function(path) {
       // converts a relative path into an absolute one
       if (/^http/.test(path)) {
          return path
       } else if (/^\//.test(path)) {
          var p = document.location.protocol;
          var h = document.location.host;
          return p+"//"+h+path
       }
    },

    runQueue: function(q) {
        for(x=0;x<q.length;x++) {
            f = q[x]; 
            f();
        }
    },

    gaPath: function(url,prefix) {
       // tries to remove this hostname, if its not removable, put in a prefix
       var r = "^https?://"+document.location.host+"[:0-9]*/";
       if (/^\//.test(url)) {
          return url
       } else if (RegExp(r).test(url)) {
          return url.replace(RegExp(r),'/')  
       } else {
          return "/"+prefix+"/"+url
       }
    },

    addEvent: function( obj, type, fn ) {
       // javascript events (not page events)
       if ( obj.attachEvent ) {
          obj['e'+type+fn] = fn;
          obj[type+fn] = function(){obj['e'+type+fn]( window.event );}
          obj.attachEvent( 'on'+type, obj[type+fn] );
       } else {
          obj.addEventListener( type, fn, false );
       }
    },

    sleep: function (sleeptime){
       var sleeping = true;
       var now = new Date();
       var alarm;
       var startingMSeconds = now.getTime();
       while(sleeping){
         alarm = new Date();
         alarmMSeconds = alarm.getTime();
         if(alarmMSeconds - startingMSeconds > sleeptime){ sleeping = false; }
       }
    },
    
    isDownload: function(a) {
        if(!a){return false;}
        if(a.className && a.className.indexOf('download') > -1) {return true;}
        if(a.rel && a.rel.indexOf('download') > -1) {return true;}
        var link = a.href.replace(/\?.*/,'');
        if (link && link.match(/\.(pdf|doc|mov|mp3|xls|jpg|gif|mmap)$/)) {
           return true;
        } else {
           return false;
        }
    },

    isOffsite: function(a) {
        if(!a){return false;}
        if(a.className && a.className.indexOf('offsite') > -1) {return true;}
        if(a.rel && a.rel.indexOf('offsite') > -1) {return true;}
        var thisdomain = document.location.host.replace(/:\d+/,'');
        var linkdomain = a.host.replace(/:\d+/,'');
        if (linkdomain && linkdomain != thisdomain) {
           return true
        } else {
           return false;
        }
    },

    baseHref: function() {
       var base = document.getElementsByTagName('base');
       var href = ''
       for (var i=0;i<base.length;i++) {
          if (base[i].href) { href = base[i].href; }
       }
       if (href) {
         var re = new RegExp("([a-z.]+\.hbs\.edu)")
         var m = href.match(re);
         if (m && m[1]) return m[1];
       }
       return href;
    },
    
    flashVersion: function() {
       // look for any flash js libraries to provide the flash version
       try {
         var v = deconcept.SWFObjectUtil.getPlayerVersion()
         return v.major
       } catch (e) {}
       return '';
    },

    arrayContains: function(arr,val) {
        var len = arr.length;
        for (var i = 0; i < len; i++){
          if(arr[i]===val){ return true;}
        }
        return false;
    },
    
    toArray: function(val) {
       if (typeof(val) == typeof(Array())) {
          return val;
       }
       return [val];
    },    
    
    arrayEach: function(arr,fn) {
        var len = arr.length;
        for (var i = 0; i < len; i++){
          fn(arr[i]);
        }
    },

    arrayEqual: function(a1,a2) {
       var a1len = a1.length;
       var a2len = a2.length;
       if (a1len != a2len) {return false;}
       
       for (var i=0;i<a1len;i++) {
          for (var j=0;j<a2len;j++) {
             if (a1[i] != a2[j]) {return false;}
          }
       }
       
       return true;
    },
    
    joinCampaign: function(name,domain,path,duration) {
       //setcookie
    }

}


window.analytics = Analytics;
window.analytics.user = User;
window.analytics.unica = Unica;
window.analytics.google = Google;
window.analytics.util = Util;

Util.addEvent(window,'load',Analytics.save)

})();

// custom ntpt functions (jgriffith)
function ntptAddGlobalPair(key,value) {
   NTPT_GLBLEXTRA = NTPT_GLBLEXTRA + "&" + escape(key) + "=" + escape(value)
}

/* Unica Page Tagging Script v7.4.0
 * Copyright 2004-2006 Unica Corporation.  All rights reserved.
 * Visit http://www.unica.com for more information.
 */

var NTPT_IMGSRC = 'http://pt000126.unica.com/ntpagetag.gif';

var NTPT_FLDS = new Object();
NTPT_FLDS.lc = true; // Document location
NTPT_FLDS.rf = true; // Document referrer
NTPT_FLDS.rs = true; // User's screen resolution
NTPT_FLDS.cd = true; // User's color depth
NTPT_FLDS.ln = true; // Browser language
NTPT_FLDS.tz = true; // User's timezone
NTPT_FLDS.jv = true; // Browser's Java support
NTPT_FLDS.ck = true; // Cookies

var NTPT_MAXTAGWAIT = -1 // 1.0 Max delay (secs) on link-tags and submit-tags

// Optional variables:
var NTPT_HTTPSIMGSRC = 'https://pt000126.unica.com/ntpagetag.gif';
var NTPT_GLBLREFTOP = false;
var NTPT_SET_IDCOOKIE = true;
var NTPT_IDCOOKIE_NAME = 'UnicaID';

// Manually trigger the tag (jgriffith)
var NTPT_NOINITIALTAG = true;

// Variables that will need to be modified on a per-site basis
var NTPT_GLBLEXTRA = '';
var NTPT_IDCOOKIE_DOMAIN = 'hbs.edu';

// NTPT_GLBLCOOKIES can be used to pass other cookie values to NetInsight through the page tag
var NTPT_GLBLCOOKIES = [ ];

/*** END OF USER-CONFIGURABLE VARIABLES ***/

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