Advanced experiment configuration

/*
 * Usage
 *   The following lets you to set a limit on the number of times a 
 *   Code Block executes for any given visitor.
 */

 // the number of times the code should execute for a given visitor
 var limit = 3;
 // the number of days the evaluation limit should last
 var days = 180;
 // name of the cookie we use as the counter
 var cookieName = 'counterCookie';

 // function to fetch cookie values
 var getCookie = function(name) {
   var match = document.cookie.match(name+'=([^;]*)');
   return match ? match[1] : undefined;
 };

 // function to create cookies
  var setCookie = function(c_name,value,exdays,c_domain) {
    c_domain = (typeof c_domain === "undefined") ? "" : "domain=" + c_domain + ";";
    var exdate=new Date();
    exdate.setDate(exdate.getDate() + exdays);
    var c_value=escape(value) + ((exdays==null) ? "" : "; expires="+exdate.toUTCString());
    document.cookie=c_name + "=" + c_value + ";" + c_domain + "path=/";
  }

 // logic that counts and limits number of times code can evaluate for given visitor
 if (!getCookie(cookieName)) {
   setCookie(cookieName, 1, days, window.location.hostname);
 } else {
   var numberPops = parseInt(getCookie(cookieName)) + 1;
   setCookie(cookieName, numberPops, days, window.location.hostname);
 }

 if (getCookie(cookieName) <= limit) {
  // INSERT code to evaluate HERE
 }

/*
 * Usage
 *   The following code modifies the title of the browser tab on the 
 *   "blur" event and change it back to the original on the "focus" event.
 *
 */

 // store the original tab title
 var origTitle = document.title;

 // function to change title when focusing on tab
 function oldTitle() {
   document.title = origTitle;
 }

 // function to change title when un-focusing on tab
 function newTitle() {
   document.title = 'HELLO WORLD';
 }

 // bind functions to blur and focus events
 window.onblur = newTitle;
 window.onfocus = oldTitle;

/*
 * Usage
 *    Loops through the Optimizely Data Object to return the information
 *    necessary to construct the Event API payload.
 *
 */

 var campaign_data;
 var state = optimizely.get('state');

 // return all active campaigns
 campaign_data = state.getCampaignStates({"isActive": true});

 for (var campaign_id in campaign_data) {
    if (campaign_data.hasOwnProperty(campaign_id)) {
       // Returns campaign_id, experiment_id, variation_id
       var data = state.getDecisionObject({"campaignId": campaign_id});
       // code to use data
    }
 }