function changeBackground()
{
	if(screen.width > 1280 || screen.height > 1024)
	{
		document.getElementById('feeling').className= 'big';
		document.getElementById('container').className= 'big';
	}
}

function showGuestbookWindow()
{
	document.getElementById('swf_header').style.visibility='hidden';
	document.getElementById('wall').style.visibility='visible';
	document.getElementById('windowGuestbook').style.visibility='visible';
}

function hideGuestbookWindow()
{
	document.getElementById('swf_header').style.visibility='visible';
	document.getElementById('wall').style.visibility='hidden';
	document.getElementById('windowGuestbook').style.visibility='hidden';
}

function checkGuestbookFormFields()
{
	if(document.getElementById('guestbookFormNick').value!='' && document.getElementById('guestbookFormMessage').value!='')
	{
		document.getElementById('windowGuestbookButtons').innerHTML = "<a href=\"javascript:addGuestbookMessage()\" class=\"buttonGreen\"><img src=\"img/btn_ok.png\" alt=\"\" />Dodaj</a><a href=\"javascript:hideGuestbookWindow()\" class=\"buttonRed\"><img src=\"img/btn_cancel.png\" alt=\"\" />Anuluj</a>";
		return true;
	}
	else
	{
		document.getElementById('windowGuestbookButtons').innerHTML = "<span class=\"buttonInactive\"><img src=\"img/btn_ok_grey.png\" alt=\"\" />Dodaj</span><a href=\"javascript:hideGuestbookWindow()\" class=\"buttonRed\"><img src=\"img/btn_cancel.png\" alt=\"\" />Anuluj</a>";
		return false;
	}
}

function addGuestbookMessage()
{
	if(checkGuestbookFormFields()) advAJAX.post({
		url: "functions.php",
		onInitialization : function()
		{
			document.getElementById('windowGuestbook').style.visibility='hidden';
		},
		onSuccess : function()
		{
			hideGuestbookWindow();
			changeGuestbookPage('1');
		},
		parameters : {
			"function" : "guestbookAddMessage",
			"nick" : document.getElementById('guestbookFormNick').value,
			"mail" : document.getElementById('guestbookFormMail').value,
			"website" : document.getElementById('guestbookFormWebsite').value,
			"message" : document.getElementById('guestbookFormMessage').value
		}
	});
}

function changeGuestbookPage(number)
{
	advAJAX.post({
		url : "functions.php",
		onSuccess : function(obj)
		{
			var tmp = obj.responseText;
			var text = tmp.slice(6,tmp.length-8);
			document.getElementById('mainContent').innerHTML = text;
		},
		parameters : {
			"function" : "guestbookReloadPge",
			"number" : number
		}
	});
}

function showGalleryWindow(id)
{
	document.getElementById('swf_header').style.visibility='hidden';
	document.getElementById('wall').style.visibility='visible';
	var text = "<div id=\"galleryPhoto\" class=\"fixed\" style=\"height: 32px; margin-top: -16px;\"><img src=\"img/loading.gif\" alt=\"\" /></div><div id=\"galleryClosebar\" class=\"fixed\"><a href=\"javascript:hideGalleryWindow()\" class=\"navClose\"></a></div><div id=\"galleryNavbar\" class=\"fixed\"><span class=\"navPrevious\"></span><span class=\"navNext\"></span><span class=\"navSave\"></span></div>";
	document.getElementById('windowGallery').innerHTML = text;
	document.getElementById('windowGallery').style.visibility='visible';

	advAJAX.post({
		url : "functions.php",
		onSuccess : function(obj)
		{
			var tmp = obj.responseText;
			var text = tmp.slice(6,tmp.length-8);
			document.getElementById('windowGallery').innerHTML = text;
		},
		parameters : {
			"function" : "galleryWindow",
			"id" : id
		}
	});
}

function hideGalleryWindow()
{
	document.getElementById('swf_header').style.visibility='visible';
	document.getElementById('wall').style.visibility='hidden';
	document.getElementById('windowGallery').style.visibility='hidden';

	document.getElementById('windowGallery').innerHTML = '';
}