Index: schedule/Module/calendar.php
===================================================================
--- schedule/Module/calendar.php	(revision 16553)
+++ schedule/Module/calendar.php	(revision 16554)
@@ -172,6 +172,6 @@
                     var url = "https://www.fact-project.org/smartfact/index.php?source=Mrk%20421&time=2012-12-10"
                     testXML = new XMLHttpRequest();
-                    
-                    testXML.onreadystatechange=function() {
+                    testXML.open("GET",url,true);
+                    testXML.onload=function() {
                         alert (" status: " + testXML.readyState + " " + testXML.status);
                         if (testXML.status==200)
@@ -185,6 +185,5 @@
                     };
 					
-                    testXML.open("GET",url,true);
-					testXML.send();
+                    testXML.send();
                 }
                  CAL.addEventListener("onSelect", function(){