mapit - background.js

background.js

//All content loaded in the Google Calendar browser tab!
chrome.tabs.onUpdated.addListener(function (tabId, changeInfo, tab) {
   if (changeInfo.status == 'complete') {   
      chrome.tabs.query({active: true, currentWindow: true}, function(tabs){
         chrome.tabs.sendMessage(tabs[0].id, {action: "start"}, function(response) {});  
      });
   };
});