var xmlhttp;
function stateChange ()
{
	if (xmlhttp.readyState == 4)
		{
		// 4 = "loaded"
		if (xmlhttp.status == 200)
			{
			// 200 = "OK"
			} else {
				alert("Problem retrieving XML data");
			}
		}
	}
function navigateComments ( page, start )
	{
		var url = '/tn//retcom/AG20?OpenAgent&Page=' + page + '&ComStart=' + start;
		var retStr;
		xmlhttp = null;
		
		if (window.XMLHttpRequest) {
			// code for all new browsers
 			xmlhttp = new XMLHttpRequest();
		} else if (window.ActiveXObject) {
			// code for IE5, IE6, etc.
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		}
		if (xmlhttp != null) {
			xmlhttp.onreadystatechange = stateChange;
			xmlhttp.open("GET", url, false);
			xmlhttp.send(null);
			retStr = xmlhttp.responseText;
		} else {
			alert("Your browser does not support XMLHTTP.");
		}
		document.getElementById('comContent').innerHTML = retStr;
		
	}