var xmlhttp=false;

try {
	xmlhttp = new ActiveXObject("Msxml2.XMLHTTP.3.0");
} catch (e) {
	try {
		xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
	} catch (E) {
		xmlhttp = false;
	}
}

if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
	xmlhttp = new XMLHttpRequest();
}


function reload_div(url) {
	var params = '1=1';
	xmlhttp.open("POST", url, true);
	xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlhttp.setRequestHeader("Content-length", params.length);
	xmlhttp.setRequestHeader("Connection", "close");
	xmlhttp.onreadystatechange = function() {
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
			//alert('cOOl');
		}
	}
xmlhttp.send(params)
}

function loadAJAX() {
	reload_div('alerte.php');
	chTimerID = setTimeout('loadAJAX();', 600000);
}