function change_action(form,param, target)
{
	if (!target)
	{
	  var	target = '_self';
	}
	

var formSzint=form;
			if( typeof( formSzint ) != 'undefined' ){
				} else{
				formSzint=1;	
				}	
var oForm = document.forms[formSzint];
oForm.target=target;					

   oForm.action=''+param;
oForm.submit();
}
function $(id) {
		return document.getElementById(id);

	}
function shows(name){
	var name=name;
document.getElementById(name).style.display = "block";	
}
function hides(name){
	var name=name;
document.getElementById(name).style.display = "none";	
}	
function element_onoff(element_id){
	if (document.getElementById(element_id).style.display == "block"){
	document.getElementById(element_id).style.display = "none";
	}else{
	document.getElementById(element_id).style.display = "block";	
	}
}
	
function page_refresh(url,time)
{
    setTimeout("window.location.href='"+url+"'", time);
}
function color(id_name)
{
	if (document.getElementById(id_name)!=undefined && id_name!=""){
    	document.getElementById(id_name).style.background='#B3C2BB';
	}
}
function hide_color(id_name) 
{
	if (document.getElementById(id_name)!=undefined && id_name!=""){
	     document.getElementById(id_name).style.background='#C4CFC9';
	}
}

var volt=0;

function show_layer (mit,hol,poz) {

    var lay=document.getElementById(mit);
    if(lay!=null) 
	{
        ossz=0;
        lay.style.visibility='visible';
        volt=1;
    }
	//alert (szulo);
	hide_layer(szulo);	
    document.getElementById(mit).style.visibility='visible';


	
	
	}
   
function findPosX(obj) {
var curleft = 0;
if (obj.offsetParent) {
while (obj.offsetParent) {
curleft += obj.offsetLeft;
obj = obj.offsetParent;
}
}
else if (obj.x) curleft += obj.x;
return curleft;
}
   
function findPosY(obj) {
var curtop = 0;
if (obj.offsetParent) {
while (obj.offsetParent) {
curtop += obj.offsetTop
obj = obj.offsetParent;
}
}
else if (obj.y) curtop += obj.y;
return curtop;
}

function closeLay() {
  if(volt!=1) {
  close_all();
  }
  timerID = setTimeout("closeLay()", 3000);
}

function timer(){
  timerID = setTimeout("closeLay()", 3000)
}