var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
	var string_length = 8;
	var randomstring = '';
	for (var i=0; i<string_length; i++) {
		var rnum = Math.floor(Math.random() * chars.length);
		randomstring += chars.substring(rnum,rnum+1);
	}


unique_id=getCookie('unique_id');


if (unique_id!=null && unique_id!="")
  {1;}
  else
  {

  unique_id = randomstring;

  if (unique_id!=null && unique_id!="")
    {
    setCookie('unique_id',unique_id,365);
    }
  }


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,expiredays,path)
{
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);

document.cookie=c_name+ "=" +escape(value)+
((expiredays==null) ? "" : ";expires="+exdate.toGMTString())+ ";path=/";


}