function RotacjaObrazkow(Start)
{
	var tablicaObrazkow = new Array("logo.png","logo3.png","logo5.png","logo6.png","logo7.png","logo8.png");
	imgID = document.getElementById('logoNaglowek');

	var a = eval(tablicaObrazkow);
  	if(Start>=a.length)
  		Start=0;
  	imgID.src = "images/"+a[Start];
	window.setTimeout("RotacjaObrazkow("+(Start+1)+")",10000);
}

function admin() {

document.getElementById('tresc_naglowek').innerHTML = "<img src=\"images/arrow.gif\" id=\"arrow\" alt=\"strzałka\" />Panel Administracyjny";
document.getElementById('tresc_inside').innerHTML = "";
loginMenu();

}

function login(id) 
{
	user = document.getElementById('user').value;
	pass = document.getElementById('pass').value;
	
	document.getElementById('tresc_naglowek').innerHTML = "<img src=\"images/arrow.gif\" id=\"arrow\" alt=\"strzałka\" />Panel Administracyjny";
	document.getElementById('activeSubMenu').value = "";

	httpObject = GetXmlHttpObject();
	if (httpObject != null) {
	        httpObject.open("GET", "index.php?sub=login&u="+user+"&p="+pass + "&dummy=" + new Date().getTime(), true);
		httpObject.send(null);
		httpObject.onreadystatechange = function() {
		// 0 - nie udalo się zalogować
		// 1 - udało
			if (httpObject.responseText == 0){
				document.getElementById('subMenu').style.display = 'none';
				document.getElementById('tresc_inside').innerHTML = "bledne haslo";
			} else {
				document.getElementById('tresc_inside').innerHTML = httpObject.responseText;
				document.getElementById('tresc_inside').style.paddingRight = "50px";
				document.getElementById('tresc_inside').style.paddingLeft = "50px";
				loginMenu();
				document.getElementById('login_form').innerHTML = "<a href=\"#\" onclick=\"admin()\">Zalogowany</a>";
			}
		}
	}
}

function loginMenu() 
{

	httpObject2 = GetXmlHttpObject();
	if (httpObject2 != null) {
		httpObject2.open("GET", "index.php?sub=loginMenu" + "&dummy=" + new Date().getTime(), true);
		httpObject2.send(null);
		httpObject2.onreadystatechange = function() {
			document.getElementById('subMenu').style.display = '';
			document.getElementById('subMenu').innerHTML = httpObject2.responseText;
		}
	}
}

function addToFavorites() { 
	var urlAddress = "http://www.rokom.pl";
	var pageName = "ROKOM - Kamienna Góra";

	if (document.all) { 
		window.external.AddFavorite(urlAddress,pageName);
	} else {
		if (window.sidebar) {
			window.sidebar.addPanel(pageName,urlAddress,'');
		} else {
			alert("Niestety, ale Twoja przeglądarka nie wspiera tego typu funkcji."); 
		}
	}
}

function validateEmail(s) {

	var emailfilter	= /^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i;
	var returnval	= emailfilter.test(s);
	
	if (returnval==false){
		alert("Please enter a valid email address.")
	}
	return returnval
}