function show(layer_ref) {
var state = 'block';
if (document.all) { //IS IE 4 or 5 (or 6 beta)
eval( "document.all." + layer_ref + ".style.display = state");
}
if (document.layers) { //IS NETSCAPE 4 or below
document.layers[layer_ref].display = state;
}
if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = state;
}
}


function show_inline(layer_ref) {
var state = 'inline';
if (document.all) { //IS IE 4 or 5 (or 6 beta)
eval( "document.all." + layer_ref + ".style.display = state");
}
if (document.layers) { //IS NETSCAPE 4 or below
document.layers[layer_ref].display = state;
}
if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = state;
}
}


function hide(layer_ref) {
var state = 'none';
if (document.all) { //IS IE 4 or 5 (or 6 beta)
eval( "document.all." + layer_ref + ".style.display = state");
}
if (document.layers) { //IS NETSCAPE 4 or below
document.layers[layer_ref].display = state;
}
if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = state;
}
}


function showhide_2(layer_ref,pict_ref) {

if (document.all) { //IS IE 4 or 5 (or 6 beta)
if(eval( "document.all." + layer_ref + ".style.display") == 'none') {
eval( "document.all." + layer_ref + ".style.display = 'block'");
eval( "document.all." + pict_ref + ".src = 'images/minusz.gif'");
//this.src
}
else {
eval( "document.all." + layer_ref + ".style.display = 'none'");
eval( "document.all." + pict_ref + ".src = 'images/plusz.gif'");
}
}

if (document.layers) { //IS NETSCAPE 4 or below
if(document.layers[layer_ref].display=='none')
{
document.layers[layer_ref].display = 'block';
getElementById(pict_ref).setAttribute("src", "images/minusz.gif");
//document.layers[pict_ref].src = 'kepek/lenyit.gif';
}
else
{
document.layers[layer_ref].display = 'none';
getElementById(pict_ref).setAttribute("src","images/plusz.gif");
//document.layers[pict_ref].src = 'kepek/lenyit2.gif';
}
}

if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza_pict = document.getElementById(pict_ref);
theImage = document.getElementById(pict_ref);

if(hza.style.display=='none')
{
hza.style.display = 'block';
document.images[pict_ref].src = "images/minusz.gif";
}
else
{
hza.style.display = 'none';
document.images[pict_ref].src = "images/plusz.gif";
}
}
}


function showhide(layer_ref) {
if (document.all) { //IS IE 4 or 5 (or 6 beta)
if(eval( "document.all." + layer_ref + ".style.display") == 'none') {
eval( "document.all." + layer_ref + ".style.display = 'block'");
}
else {
eval( "document.all." + layer_ref + ".style.display = 'none'");
}
}

if (document.layers) { //IS NETSCAPE 4 or below
if(document.layers[layer_ref].display=='none')
{
document.layers[layer_ref].display = 'block';
}
else
{
document.layers[layer_ref].display = 'none';
}
}

if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
if(hza.style.display=='none')
{
hza.style.display = 'block';
}
else
{
hza.style.display = 'none';
}
}
}