var bgImage = new Image();
bgImage.src = 'style/images/bg_uj.jpg';

function WaitForLoading() {
	if (bgImage.complete) {
		document.body.style.background = 'url(style/images/bg_uj.jpg) no-repeat';
		HidePopup('betoltes_hatter');
	} else {
		setTimeout('WaitForLoading()',100);
	}		
}

function HideAllPopups() {
	HidePopup('bevetes_popup');
	HidePopup('english_popup');
}

function ShowPopup(name) {
	var div = document.getElementById(name);
	if (div==null) return;	
	div.style.visibility = 'visible';
	document.getElementById('popup_background').style.visibility = 'visible';
}

function SwitchPopup(name) {
	var div = document.getElementById(name);
	if (div==null) return;	
	if (div.style.visibility == 'hidden') 
		ShowPopup(name);
	else
		HidePopup(name);
}

function HidePopup(name) {
	var div = document.getElementById(name);
	if (div==null) return;
	div.style.visibility = 'hidden';
	document.getElementById('popup_background').style.visibility = 'hidden';
}