function _menu (obj)
  {
  ul = obj.parentNode.getElementsByTagName('ul'); 
  if ( ul.length )
    {
    if (  ul[0].style.display == '' || ul[0].style.display == 'none' )  ul[0].style.display = 'block';   
      else
    ul[0].style.display = 'none';
    }
  }


function a ()
{
alert ();
}

function mail_add()
{
var re_mail = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z])+$/;

form =  document.getElementById('form_sub');
if (!re_mail.test(form.email.value))
  {
  if ( form.email.style.border  )
    form.email.style.border='1px solid red';
  else 
    form.email.className = 'textfield_error' ; 
    
  alert('Niepoprawny format adresu e-mail ');
  }
  else
  {
  form.submit();
  }
}  

function zoom(typ, plus_minus)
{
if(typ=='body')
{
var zoom1=document.body.style.zoom;

}
else
{
var zoom1=tresc.style.zoom;
}



if(zoom1=="")
{
var zoom2=100;
}
else
{
zoom1='' + zoom1 + '';
var k1=zoom1.indexOf("%");
var zoom2=zoom1.substring(0, k1);
zoom2=zoom2 * 1;
}

if(plus_minus=='minus')
zoom2=zoom2 - 25;
else
zoom2=zoom2 + 25;


if(zoom2<75)
{
zoom2=75;
}


if(typ=='body')
{
document.body.style.zoom=zoom2 + '%';

}
else
{
tresc.style.zoom=zoom2 + '%';
}


}



function otworz(plik, target)
{

if(target=="" || target==undefined)
{
window.location=plik;
}
else
{
parent.window.frames[target].location.href=plik;
}
}

function otworz_nowa(plik)
{
window.open=plik;
}

function popup_size()
{
var W=document.getElementById('tab1').offsetWidth;
var H=document.getElementById('tab1').offsetHeight;
H=H+80;
W=W+29;

var h_roz=screen.availHeight;
h_roz=h_roz-30;
var w_roz=screen.availWidth;
w_roz=w_roz-30;


if(H>h_roz)H=h_roz;
if(W>w_roz)W=w_roz;

window.resizeTo(W,H);
}


function drzewko_kat(obiekt1, obiekt2)
 {
 obiektA= document.getElementById(obiekt1);
 obiektB= document.getElementById(obiekt2);

 obiektA.style.display = '';
 obiektB.style.display = 'none';
 }

 

function drzewko_kat2(obiekt1, obiekt2)
 {
 obiektA= document.getElementById(obiekt1);
 obiektB= document.getElementById(obiekt2);

 obiektA.style.display = 'block';
 if(obiektB.style.display=='none')
  obiektB.style.display = 'block';
  else
  obiektB.style.display = 'none';		
 
 }
 
 

function zw()
{
var war='warstwa1';
war1= document.getElementById(war);
war1.style.display = 'none';

var waznosc=new Date();
waznosc.setTime(waznosc.getTime()+1000*60*60*24*7);
document.cookie="warstwa_close;expires" + waznosc.toGMTString();
}


function ustaw_warstwe(){
var war='warstwa1';
var ban= document.getElementById(war);


var a=document.cookie;
var tab=document.cookie.split(";");
var i=0;
var b=0;
while(tab[i]!=undefined && i<20)
{
if(tab[i]==" warstwa_close")
{
b=1;
}
i=i+1;
}


if(b==1)
{
ban.style.display = 'none';
}
else
{
ban.style.display = '';
}
}



function zamknij_warstwe (war)
{
war1= document.getElementById(war);
war1.style.display = 'none';

}

function popup(url, display)
{
var Win = window.open(url,display,'width=100,height=100,top=30,left=100,resizable=yes,scrollbars=yes,menubar=no');
}


function usun_rekord(plik, komunikat)
{
if (!confirm(komunikat))
return ;

window.location=plik;
}

function potwierdz(plik, komunikat)
{
if (!confirm(komunikat))
return ;

window.location=plik;
}

function sprawdz_check_koszyk(ilosc, check)
{
var ilosc2=document.forms['form_lista_produkt'][ilosc];
var check2=document.forms['form_lista_produkt'][check];
var ilosc3=ilosc2.value;
if(ilosc3>0)
check2.checked=true;
else
{
check2.checked=false;
ilosc2.value='';
}
}


function sprawdz_check_koszyk2(ilosc, check)
{
var ilosc2=document.forms['form_lista_produkt'][ilosc];
var check2=document.forms['form_lista_produkt'][check];

var ilosc3=ilosc2.value;

if(check2.checked==true && ilosc3<1)
{
ilosc2.value=1;
}

}






function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}