function toggle(theDiv)
{
   var elem = document.getElementById(theDiv);
   elem.style.display = (elem.style.display == "none") ? "" : "none";
}

function pokazRozmowe(Id)
{
	if (document.getElementById('rozmowa'+Id+'-tresc').innerHTML=='')
	{
		document.getElementById('rozmowa'+Id+'-tresc').innerHTML='<br /><center><i>Wczytywanie...</i></center><br />';
		ajaxRequest('pm', '&akcja=lista&rozmowa='+Id, 'rozmowa'+Id+'-tresc');
		if (document.getElementById('rozmowa'+Id+'-ikonka')) document.getElementById('rozmowa'+Id+'-ikonka').innerHTML = '';		
	}
	toggle('rozmowa'+Id+'-tresc');
}

function handleDivTag(divtag)
{
	var divtag;
	return divtag;
}


var divhandler = new handleDivTag(null); 

function ajaxRequest(plik, zmienne, divTag, ladowanie, tekst)
{
	var http_request = false;

	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			http_request.overrideMimeType('text/xml');
			// See note below about this line
		}
	} else if (window.ActiveXObject) { // IE
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}

	if (!http_request) {
		alert('Nie mozna nawiazac polaczenia. Sprobuj ponownie.');
		return false;
	}

	http_request.onreadystatechange = function() { if (divTag!=null) ajaxPrint(http_request); }
	http_request.open('POST', plik+'.ajax.php', true);
	http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	divhandler.divtag = divTag;
	
	if (tekst == '') tekst='Ładowanie...';
	if (ladowanie == 1) document.getElementById(divTag).innerHTML = tekst;

	http_request.send(zmienne);
}


function ajaxPrint(http_request) {

	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			if (http_request.responseText != '' && http_request.responseText != ' ')  document.getElementById(divhandler.divtag).innerHTML = http_request.responseText;
		}
	}

}