Added The Walking Dead Next Issue Helper

Added JavaScript helper that retrieves details of the next Walking Dead
comic issue.

tasker_getWalkingDeadIssueDetails.js

@@ -0,0 +1,43 @@
+var xhr = new XMLHttpRequest();
+xhr.open('GET', 'http://walkingdeadcomics.org/the-walking-dead-next-issue/', true);
+
+xhr.onload = function () {
+  var parser = new DOMParser();
+  var doc = parser.parseFromString(xhr.responseText, 'text/html');
+
+  var titleNode = doc.getElementById('p-title');
+  var issuenumber = titleNode.innerText.substr(titleNode.innerText.indexOf('#')+1);
+  var availabilityText = doc.querySelector('div.vision-contentbox-content.tt-content-style-black > span').innerText;
+  var dateStart = availabilityText.substr(availabilityText.indexOf(':') + 1).trim();
+  var array = dateStart.split(' ');
+  var releasedatestring = array[0] + ' ' + array[1] + ' ' + array[2] + ' 09:00 GMT-0500';
+
+  var releaseDate = new Date(releasedatestring);
+
+  var msUntil = releaseDate - new Date();
+
+  var days = msUntil/1000/60/60/24;
+  var wholedays = Math.floor(days);
+  var img = doc.querySelector('#jig1 a').href;
+
+  setVariablesInTasker(img, issuenumber, wholedays, releasedatestring);
+
+  //leave the Tasker javascriptlet
+  exit();
+};
+
+xhr.send();
+
+function setVariablesInTasker(img, issuenumber, wholedays, releasedatestring) {
+  setLocalVariable('img',img);
+  setLocalVariable('issueno',issuenumber);
+  setLocalVariable('days',wholedays);
+  setLocalVariable('date',releasedatestring);
+}
+
+function setLocalVariable(name, value, debug) {
+    if (debug) {
+    flash('setting ' + name + ' to ' + value);
+	}
+	setLocal(name,value);
+};