function dg(id) {
	return document.getElementById(id);
}

function pre(str) {
	document.title = str;
}

var i;

var newImg = new Array();
var oldImg = new Array();

function kepbetoltes(nev) {
	if (!dg(nev))
		return;
	var _kep1 = 'images/'+nev+'.gif';
	var _kep2 = 'images/'+nev+'_ro.gif';
	oldImg[nev] = new Image(); oldImg[nev].src = _kep1;
	newImg[nev] = new Image(); newImg[nev].src = _kep2;
	dg(nev).nev = nev;
	dg(nev).onmouseover = function() { kepcsere(this.nev, 1); }
	dg(nev).onmouseout = function() { kepcsere(this.nev, 0); }
}

var kepek = ['menu1', 'menu3', 'menu4', 'menu5', 'menu7', 'menu8'];

function kepcsere(kep, over) {
	dg(kep).src = (over) ? newImg[kep].src : oldImg[kep].src;
}

function kepbe(nev,kep) {
	document.images[nev].src = kep.src;
}

function map() {
	ablak=open("popups/map.html", "map_large", "toolbar=no,location=no,scrollbars=no,directories=no,width=400,height=400,status=yes,menubar=no,resizable=no");
}

function addEvent(obj, evType, fn) {
	if (obj.addEventListener) {
		obj.addEventListener(evType, fn, true);
		return true;
	}
	else if (obj.attachEvent) {
		var r = obj.attachEvent('on'+evType, fn);
		return r;
	}
	else
		return false;
}

function ablak(nev, w, h) {
	sc = (arguments.length == 4 && [3] != undefined) ? ablak.arguments[3] : 0;
	var str='scrollbars='+sc+',width='+w+',height='+h+',left='+((screen.width/2)-(w/2))+',top='+((screen.height/2)-(h/2));
	var nyit = window.open(nev, 'tartalom', str);
	nyit.focus();
}