function getCalendar()
{
	var http = getHTTPObject();
	http.open("GET", "includes/calendar_homepage.asp" , true);
	http.onreadystatechange = function() 
	{
		if (http.readyState == 4) 
		{
			document.getElementById("calendar").innerHTML = http.responseText;
		}
	}
	http.send(null);
}