function Nethru_getCookieVal(offset)
{
    var endstr = document.cookie.indexOf (";", offset);
    if (endstr == -1)
        endstr = document.cookie.length;
    return unescape(document.cookie.substring(offset, endstr));
}



function Nethru_SetCookie(name, value){
   var argv = Nethru_SetCookie.arguments;
   var argc = Nethru_SetCookie.arguments.length;
   var expires = (2 < argc) ? argv[2] : null;
   var path = (3 < argc) ? argv[3] : null;
   var domain = (4 < argc) ? argv[4] : null;
   var secure = (5 < argc) ? argv[5] : false;

   document.cookie = name + "=" + escape (value) +
        ((expires == null) ? "" : ("; expires="+expires.toGMTString())) +
     ((path == null) ? "" : ("; path=" + path)) +
     ((domain == null) ? "" : ("; domain=" + domain)) +
        ((secure == true) ? "; secure" : "");

}


function Nethru_GetCookie(name){
   var arg = name + "=";
   var alen = arg.length;
   var clen = document.cookie.length;
   var i = 0;
   while (i < clen)
      {
      var j = i + alen;
      if (document.cookie.substring(i, j) == arg)
         return Nethru_getCookieVal (j);
      i = document.cookie.indexOf(" ", i) + 1;
      if (i == 0)
         break;
      }
  return null;
}


 
function Nethru_makePersistentCookie(name,length,path,domain)
{
    var today = new Date();
    var expiredDate = new Date(2011,1,1);
    var cookie;
    var value;

    cookie = Nethru_GetCookie(name);
    if ( cookie ) {
        return 1;
    }

    var values = new Array();
    for ( i=0; i < length ; i++ ) {
        values[i] = "" + Math.random();
    }

    value = today.getTime();

    // use first decimal
    for ( i=0; i < length ; i++ ) {
        value += values[i].charAt(2);
    }

    Nethru_SetCookie(name,value,expiredDate,path,domain);
}




function Nethru_getDomain() {
    var _host   = document.domain;
    var so      = _host.split('.');
    var dm    = so[so.length-2] + '.' + so[so.length-1];
    return (so[so.length-1].length == 2) ? so[so.length-3] + '.' + dm : dm;
}

var Nethru_domain  = 'pandora.tv';

var logserver = "www.pandora.tv";
var logpath = "/chkScreen.jsp?";
//var Nethru_domain  = Nethru_getDomain();

Nethru_makePersistentCookie("PCID",10,"/",Nethru_domain);

Nethru_makePersistentCookie("RC",10,"/",Nethru_domain);



// 해상도르 알려줄 서버와 페이지 정의 (새로 추가)
var logserver = "www.pandora.tv";
var logpath = "/chkMenuResolution.jsp?";
var logdelim = "&";

//사용자 컴의 해상도 알아오기
var vn_screenx = screen.availWidth;                     // 화면스크린 넓이
var vn_screeny = screen.availHeight;                     // 화면스크린 높이
var vn_screenc = screen.colorDepth;                     // 화면 색상

var resolution_value = vn_screenx + "*" + vn_screeny;
var color_value = vn_screenc;

//메뉴 이름 title로부터 알아오기
var mname = document.title;

//메뉴 이름 form 에서 알아오기
//var mname = document.form_name.value;

// 새 해상도 정보 웹로그에 남겨주기 - iframe 으로 URL 을 Call 해 줌....
var chkUrl = "http://" + logserver + logpath + "resolution=" + resolution_value + logdelim + "color=" + color_value + logdelim + "mname=" + mname;
document.writeln("<img width=0 height=0 src=\"" + chkUrl + "\">");