// ----------- function declarations --------------------------------------------------
function createCookie(name,value,days)
{
        if (days)
        {
                var date = new Date();
                date.setTime(date.getTime()+(days*24*60*60*1000));
                var expires = "; expires="+date.toGMTString();
        }
        else var expires = "";
        var ck = name+"="+value+expires+"; path=/";
        //if (days != -1) alert('Cookie\n' + ck + '\ncreated');
        document.cookie = ck;
}


function readCookie(name)
{
        var nameEQ = name + "=";
        var ca = document.cookie.split(';');
        for(var i=0;i<ca.length;i++)
        {
                var c = ca[i];
                while (c.charAt(0)==' ') c = c.substring(1,c.length);
                if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
        }
        return null;
}


function get_refferer()
{
 var refferer='',v_cookie=0;
 if (document["referrer"] != null)
    {
     refferer=document.referrer;
    }
  return refferer;
}
// -------------------------------------------------------------------------------------

   var exist_cookie=readCookie("userid");

   if(exist_cookie)
     v_cookie=0;
   else
     {
       if (navigator.cookieEnabled)
         {
           var date = new Date();
           cookie_value=date.getTime();
           createCookie("userid",cookie_value,1);
           v_cookie=1;
         }
       else
         {
           v_cookie=0;
         }
     }