* General code/comment cleanup

* Filter for "ci=" and "tid=" to find coremetrics tags. Just filtering
  on "ci=" was catching a few other requests that were not Coremetrics.

gettags.js

@@ -17,17 +17,20 @@ var ourTabId;
 // We need to receive the tabID for the new window that this extension creates to display the tag data.
 chrome.extension.onMessage.addListener(
     function(request, sender, sendResponse) {
-        console.log('Hey, the background script got a message!' +request.greeting);
-        ourTabId = request.greeting;
+        // If the message contains a cmTagWindowID, it the one we were waiting for. This is our output window.
+        if (request.cmTagTabID) {
+            console.log('Display window registered with background script. Tab ID is ' +request.cmTagTabID);
+            ourTabId = request.cmTagTabID;
+        }
     } 
 );
 
-// Listen for HTTP requests. Filter on eluminate and then send the data to our window
+// Listen for HTTP requests. Assume a request with 'ci=' and 'tid=' is a coremetrics request
 chrome.webRequest.onBeforeSendHeaders.addListener(
   function(details) {
     console.log('Request: ' + details.url);
     var siteUrl = details.url.split('/')[2];
-    if (details.url.indexOf("ci=") != -1) {
+    if (details.url.indexOf("ci=") != -1 && details.url.indexOf("tid=") != -1) {
      var queryString = {};
 
      var theseParams = details.url.split("?")[1];

tagwindow.js

@@ -45,9 +45,10 @@ document.addEventListener('DOMContentLoaded', function () {
 });
 
 
-// Get current tabid and send it as a message to the background as a 'greeting'
+// Get current tabid and send it as a message to the background script. The background
+// script NEEDs this in order to send messages to this script
 chrome.tabs.query({ currentWindow: true, active: true }, function (tabs) {
-  chrome.extension.sendMessage({greeting: tabs[0].id}, function(response) {
+  chrome.extension.sendMessage({cmTagTabID: tabs[0].id}, function(response) {
     console.log(response);
   });
 } );