function startGETRequest(url, onComplete, onEnd){

	var XMLHttpRequestObject = getXMLHttpRequestObject();

	if(XMLHttpRequestObject){

		XMLHttpRequestObject.open("GET", url);

		XMLHttpRequestObject.onreadystatechange = function()

		{

			if (XMLHttpRequestObject.readyState == 4){

				if (XMLHttpRequestObject.status == 200){

					var responseXML = XMLHttpRequestObject.responseXML;

					var responseText = XMLHttpRequestObject.responseText;

					onComplete(responseText, responseXML);

				}

				delete XMLHttpRequestObject;

				XMLHttpRequestObject = null;

				onEnd();

			}

		}

		XMLHttpRequestObject.send(null);

	}

}



function startPOSTRequest(url, params, onComplete, onEnd){

	var XMLHttpRequestObject = getXMLHttpRequestObject();

	if(XMLHttpRequestObject){

		XMLHttpRequestObject.open("POST", url);

		XMLHttpRequestObject.setRequestHeader('Content-Type', 'application/x=www=form-urlencoded');

		XMLHttpRequestObject.onreadystatechange = function()

		{

			if (XMLHttpRequestObject.readyState == 4){

				if (XMLHttpRequestObject.status == 200){

					var responseXML = XMLHttpRequestObject.responseXML;

					var responseText = XMLHttpRequestObject.responseText;

					onComplete(responseText, responseXML);

				}

				delete XMLHttpRequestObject;

				onEnd();

			}

		}

		XMLHttpRequestObject.send(params);

	}

}



function getXMLHttpRequestObject(){

	var wersjeMSXML = new Array(

		"MSXML2.XMLHTTP.6.0",

		"MSXML2.XMLHTTP.5.0",

		"MSXML2.XMLHTTP.4.0",

		"MSXML2.XMLHTTP.3.0",

		"MSXML2.XMLHTTP",

		"Microsoft.XMLHTTP"

	);

	try{

		return new XMLHttpRequest();

	}

	catch(e){

		for (var indeks in wersjeMSXML){

			try{

				return new ActiveXObject(wersjeMSXML[indeks]);

			}

			catch(e){

			}

		}

		return null;

	}

}