function read_cookie() 
{
 var value = "";
 if(document.cookie) {
  var value_start = document.cookie.indexOf("=") + 1;
  var value_end = document.cookie.indexOf(";");
  if (value_end == -1)
  value_end = document.cookie.length;

  value = document.cookie.substring(value_start,value_end);
 }
 return value;
}


function write_cookie(identifier,value,life_time) 
{
 var now = new Date();
 var timeout = new Date(now.getTime() + life_time);
 document.cookie = identifier+"="+value+"; expires="+timeout.toGMTString()+";";
}


function Zaehlerstand() 
{
 var Verfallszeit = 1000*60*60*24*365;
 var Anzahl = read_cookie();
 var Zaehler = 0;
 if(Anzahl != "") Zaehler = parseInt(Anzahl);
 if(document.cookie) {
   Zaehler = Zaehler + 1;
   write_cookie("cookiecounter",Zaehler,Verfallszeit);
 }
 else 
{
   Zaehler = 1;
   write_cookie("cookiecounter",Zaehler,Verfallszeit);
 }
 return(Zaehler);
}


function read_Zaehlerstand() 
{
 var Anzahl = read_cookie();
 var Zaehler = 0;
 if(Anzahl != "") 
 Zaehler = parseInt(Anzahl);
 return(Zaehler);
}