var NS4 = (document.layers)? 1 : 0;
var IE4 = (document.all)? 1 : 0;
var W3C = (document.getElementById)? 1 : 0;

function fGetObject(obj_name){
	if(W3C)
		return document.getElementById(obj_name);
	else if(NS4)
		return document.layers[obj_name];
	else
		return window.opener.document.all[obj_name];
}

function fIsNum(tmp){
	var szam = new String(tmp);
	var jok = new String("0123456789");
	for(k=0; k<szam.length; k++){
		if(jok.indexOf(szam.charAt(k)) == -1)
			return false;
	}
	return true;
}

function fShowMenu(menu){
	if(menu == 1)
		document.location = 'index.php';
	else if(menu == 2)
		document.location = 'termekek.php';
	else if(menu == 3)
		document.location = 'akciok.php';
	else if(menu == 4)
		document.location = 'galeria.php';
	else if(menu == 5)
		document.location = 'elerhetoseg.php';
}

function fStartGalery(name){
	myLightbox.start(document.getElementById(name));
}

function fChangeClass(obj, pclass){
	obj.className = pclass;
}