var nointro;


function RedirectIfScript()
{
  nointro = false;
  checkCookie();
  if( nointro == false )
     {
     window.location.href="intro.htm";
     }else window.location.href="main.htm";
 //pwt();
}


function IntroFromMenu()
{
//setCookieExpire('MalovaniSvetlem','intro',1);
// window.location.href="intro.htm"; // no intro if no script
 window.location.href="introCZ.htm"; 
}

// ----------- COOKIES -------------
function setCookieExpire(cname,value,expiredays)
{
 var exdate=new Date();
 exdate.setDate(exdate.getDate()-expiredays-1);
 document.cookie=cname+ "=" +escape(value)+ ((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}


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

function getCookie(cname)
{
if (document.cookie.length>0)
  {
  cstart=document.cookie.indexOf(cname + "=");
  if (cstart!=-1)
    { 
    cstart=cstart + cname.length+1; 
    cend=document.cookie.indexOf(";",cstart);
    if (cend==-1) cend=document.cookie.length;
    return unescape(document.cookie.substring(cstart,cend));
    } 
  }
return "";
}

function checkCookie()
{
username=getCookie('MalovaniSvetlem');
 if (username!=null && username!="")
  {

  // Vitej znovu ... neprojizdime intro týž den opakovanì
  // setCookie('MalovaniSvetlem','intro',1);
  nointro = true;
  }
else 
  {
   
    // setCookie('MalovaniSvetlem','intro',1);
    nointro = false;
    // Projedeme intro
  }
}