function nadli(obiekt, klasa){
  document.getElementById(obiekt).className=klasa;
}

function pozali(obiekt){
	document.getElementById(obiekt).className='';
}
function setCookie(c_name,value,expiredays)
{
var exdate=new Date()
exdate.setDate(exdate.getDate()+expiredays)
document.cookie=c_name+ "=" +escape(value)+
((expiredays==null) ? "" : ";expires="+exdate.toGMTString())
}

function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=")
  if (c_start!=-1)
    { 
    c_start=c_start + c_name.length+1 
    c_end=document.cookie.indexOf(";",c_start)
    if (c_end==-1) c_end=document.cookie.length
    return unescape(document.cookie.substring(c_start,c_end))
    } 
  }
return ""
}
function pokazMenuLewe(){
	document.getElementById('menulewe').className='zadne';
	document.getElementsByTagName('body').item(0).className='open'+getCookie('menuotwarte');
}
function otworzMenuLewe(nr){
	document.getElementsByTagName('body').item(0).className='open'+nr;
	setCookie('menuotwarte', nr)
}

function podswietl(obiekt){
		obiekt.getElementsByTagName('strong').item(0).style.backgroundColor='#ECECEC';
}
function podswietllight(obiekt){
		obiekt.getElementsByTagName('strong').item(0).style.backgroundColor='#ECECEC';
}
function odswietl(obiekt){
		obiekt.getElementsByTagName('strong').item(0).style.backgroundColor='#F5F5F5';
}