var pozadi = new Array(
"img/bgimage01.jpg", 
"img/bgimage02.jpg",
"img/bgimage03.jpg",
"img/bgimage04.jpg", 
"img/bgimage05.jpg",
"img/bgimage06.jpg",
"img/bgimage07.jpg", 
"img/bgimage08.jpg",
"img/bgimage09.jpg",
"img/bgimage10.jpg", 
"img/bgimage11.jpg"
);


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 setCookie(c_name,value,expiretime)
{
var extime=new Date();
extime.setTime(extime.getTime()+expiretime);
document.cookie=c_name+ "=" +escape(value)+
((expiretime==null) ? "" : ";expires="+extime.toGMTString());
}


index=getCookie('index');
if (index!=null && index!="")
  {
  index = index;
  }
else
  {
  index=Math.floor(Math.random()*pozadi.length);
  if (index!=null && index!="")
    {
    setCookie('index',index,600000);
    }
  };