var EPCmo = 03;
var EPCyr = 2010;
function loadurl(dest, EPCnav) { 
try { 
xmlhttp = window.XMLHttpRequest?new XMLHttpRequest(): 
new ActiveXObject("Microsoft.XMLHTTP"); 
} 
catch (e) {}
xmlhttp.onreadystatechange = triggered; 
if (EPCnav==2) {EPCmo = 03; EPCyr = 2010;}
if (EPCnav==1) {EPCmo--; if (EPCmo < 1) {EPCmo = 12; EPCyr --;}}
if (EPCnav==3) {EPCmo++; if (EPCmo > 12) {EPCmo = 1; EPCyr ++;}}
xmlhttp.open("GET", dest + "?mo=" + EPCmo + "&yr=" + EPCyr + "&EPCajax=1"); 
xmlhttp.send(null); } 
function triggered() { 
if ((xmlhttp.readyState == 4) && (xmlhttp.status == 200)) { 
document.getElementById("EPCcalendar").innerHTML = xmlhttp.responseText; } }