function xmlhttpPost(strURL,type) {
    var xmlHttpReq = false;
    var self = this;
    // Mozilla/Safari
    if (window.XMLHttpRequest) {
        self.xmlHttpReq = new XMLHttpRequest();
    }
    // IE
    else if (window.ActiveXObject) {
        self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
    }
    self.xmlHttpReq.open('POST', strURL, true);
    self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    self.xmlHttpReq.onreadystatechange = function() {
        if (self.xmlHttpReq.readyState == 4) {
            updatepage(self.xmlHttpReq.responseText);
        }
    }
    self.xmlHttpReq.send('type='+type);
}

//////////////////////////////////////////////////////////////////

var tLimit=720; // 1 óra

function start() {
	xmlhttpPost('http://www.ingyen-angol.hu/cb.php','r'); // request
	setTimeout("nextTime()",5000);
}

function nextTime() {
	xmlhttpPost('http://www.ingyen-angol.hu/cb.php','s'); // time
	if (tLimit>0) {
		tLimit--;
		setTimeout("nextTime()",5000);
	}
}

function updatepage(str){
//	alert(str);
//    document.getElementById("result").innerHTML = str;
}