function changeImg ( name, src ){
	document[name].src = src;
}

function nyitolap(){
	var elem = document.getElementById( 'belep' );
	elem.style.left = getDocWidth()/2 - 146 + 'px';
	elem.style.top = getDocHeight()/2 - 180 + 'px';
	//command = "document.location.href = './sindex.html'";
	//setTimeout(command,4000);
}

function showContent( name, number, all ){
	for( var i = 1; i <= all; i++ ){
		$('#'+name+'_'+i).slideUp('slow', function() {});
	}
	$('#'+name+'_'+number).slideDown('slow', function() {});

}

function getDocHeight() {
    var D = document;
    return Math.max(
        Math.max(D.body.scrollHeight, D.documentElement.scrollHeight),
        Math.max(D.body.offsetHeight, D.documentElement.offsetHeight),
        Math.max(D.body.clientHeight, D.documentElement.clientHeight)
    );
}

function getDocWidth() {
    var D = document;
    return Math.max(
        Math.max(D.body.scrollWidth, D.documentElement.scrollWidth),
        Math.max(D.body.offsetWidth, D.documentElement.offsetWidth),
        Math.max(D.body.clientWidth, D.documentElement.clientWidth)
    );
}

var galCounter = 1;
var galLastGalery = -1;

function doGalery(id,lob,hib,offset){

	if ( id != galLastGalery ) { galCounter = 1; }

	galCounter += offset;
	if ( galCounter < lob ){ galCounter = hib; }
	if ( galCounter > hib ){ galCounter = lob; }

	$('#' + id).fadeOut(30);

	document.getElementById(id).src = 'pic/public/' + id + '/' + galCounter + '.jpg';
	document.getElementById(id+'-num').innerHTML = galCounter + '/' + hib;

	window.setTimeout("$('#" + id + "').fadeIn(30)",30);

	galLastGalery = id;

}

var esCounter = 1;
var esLastEsemeny = -1;

function doDivLapozo(id,lob,hib,offset){

	if ( id != esLastEsemeny ) { esCounter = 1; }

	esCounter += offset;
	if ( esCounter < lob ){ esCounter = hib; }
	if ( esCounter > hib ){ esCounter = lob; }

	$('#' + id).fadeOut(30);

	for (var i=lob; i<=hib; i++ ){
		document.getElementById(id + '_' + i).style.display = 'none';
	}

	document.getElementById(id + '_' + esCounter).style.display = 'block';
	document.getElementById(id+'-num').innerHTML = esCounter + '/' + hib;

	window.setTimeout("$('#" + id + "').fadeIn(30)",30);

	esLastEsemeny = id;

}