function loadCal(m, a)
{ 
	var xhr; 
	try {  xhr = new ActiveXObject('Msxml2.XMLHTTP');   }
	catch (e) 
	{
		try {   xhr = new ActiveXObject('Microsoft.XMLHTTP');    }
		catch (e2) 
		{
		try {  xhr = new XMLHttpRequest();     }
		catch (e3) {  xhr = false;   }
		}
	}
	
	xhr.onreadystatechange  = function()
	{ 
		if(xhr.readyState  == 4)
		{
			if(xhr.status  == 200){
				document.getElementById('calendrier').innerHTML=xhr.responseText;
			}
		}
	}; 
	
	xhr.open( "GET", "loadCal.php?m=" + m + "&a=" + a,  true); 
	xhr.send(null);
	
}