var xmlHttp;
var eventHandler = new Object();


function GetXmlHttpObject() { 
	
	var objXMLHttp = null
	
	if (window.XMLHttpRequest) {
		objXMLHttp = new XMLHttpRequest()
	} else if (window.ActiveXObject) {
		objXMLHttp = new ActiveXObject("Microsoft.XMLHTTP")
	}
	
	return objXMLHttp
}

function sendRequest(url,fv) {
	
	xmlHttp = GetXmlHttpObject();
	
	if(xmlHttp == null) {
		alert ("A böngészoje nem támogatja az AJAX technológiát!");
		return;
	}
	
	eventHandler.fv = fv;
	xmlHttp.onreadystatechange = stateChanged;
	xmlHttp.open("POST",url,true);
	xmlHttp.send(null);
}

function stateChanged() { 
	
	if((xmlHttp.readyState == 4 || xmlHttp.readyState == "complete") && xmlHttp.responseText != '') { 
		
		eventHandler.fv(xmlHttp.responseText);
	}
}