// JavaScript Document


//*****************************************************************************

function rand ( n )
{
  return ( Math.floor ( Math.random ( ) * n + 1 ) );
}

//*****************************************************************************

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 null;
}

//*****************************************************************************

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 addLink()
{
	var adres="adres";
	licznikk=getCookie('licznik');
	if (licznikk==null)
    {
    	setCookie('licznik', '0' ,365);
		licznikk="0";
    }
	licz=parseInt(licznikk)+1;
	//adres=prompt('Wprowadz adres strony','http://');
	adres=document.getElementById('link_url').value;
	if(adres==null) return;
	if((adres.substring(0, 7))!="http://") { adres="http://" + adres; }
	if((adres.length) < 10) 
	{ 
	   alert("Bledny adres! Podaj poprawny adres np. www.pajacyk.pl"); 
	   return;
	}
	setCookie("licznik" , "" + licz ,365);
	setCookie("" + licz , "" + adres ,365);
	window.top.location.href = "http://www.astrona.pl";
	return;
}

//*****************************************************************************

function inicjalize()
{
	var los=rand(4);
	if(los==1)
	{
		deafult_tlo='http://xface.pl/startowe_bg/tomb_rider.jpg';
	}else if(los==2)
	{
		deafult_tlo='http://xface.pl/startowe_bg/prison.jpg';
	}else if(los==3)
	{
		deafult_tlo='http://xface.pl/startowe_bg/girl3_1280x960.jpg';
	}else
	{
		deafult_tlo='http://xface.pl/startowe_bg/anime_120x960.jpg';
	}
	
	tlo=getCookie('tlo');
	if(tlo==null)
	{
		setCookie('tlo', deafult_tlo ,365);
		document.getElementById('body_id').style.backgroundImage='url('+deafult_tlo+')';
	} else 
	{
		document.getElementById('body_id').style.backgroundImage='url('+tlo+')';
	}
	return;
}

//*****************************************************************************

function changeBg()
{
	var adres="adres";
	adres=document.getElementById('adres').value;
	if(adres==null) return;
	if((adres.substring(0, 7))!="http://") { adres="http://" + adres; }
	if((adres.length) < 10) 
	{ 
	   alert("Bledny adres!"); 
	   return;
	}
	setCookie("tlo" , adres ,365);
	window.top.location.href = "http://www.astrona.pl/";
	return;
}