function createQCObject() { 
   var req; 
   if(window.XMLHttpRequest){ 
      // Firefox, Safari, Opera... 
      req = new XMLHttpRequest(); 
   } else if(window.ActiveXObject) { 
      // Internet Explorer 5+ 
      req = new ActiveXObject("Microsoft.XMLHTTP"); 
   } else { 
      alert('Problem creating the XMLHttpRequest object'); 
   } 
   return req; 
} 

// Make the XMLHttpRequest object 
var http = createQCObject(); 

function displayQCalendar(m,y,j) {
	http.open('get', 'eventcalendar.php?m='+m+'&y='+y+'&j='+j);
   	http.onreadystatechange = function() {
		if(http.readyState == 4 && http.status == 200) { 
      		var response = http.responseText;
      		if(response) { 
				document.getElementById("calender-box").innerHTML = http.responseText; 
      		} 
   		} 
	} 
   	http.send(null); 
}