function getCookie (Name)
{
var cInhalt = document.cookie;
var cName = Name + "=";
var cLaenge = cInhalt.length;
var cBeginn = 0;

while (cBeginn < cLaenge)
    {
    var wBeginn = cBeginn + cName.length;
    if (cInhalt.substring (cBeginn, wBeginn) == cName)
        {
        var wEnde = cInhalt.indexOf (";", wBeginn);
        if (wEnde == -1)
            wEnde = cLaenge;
        return unescape (cInhalt.substring (wBeginn, wEnde));
        };
    cBeginn = cInhalt.indexOf (" ", cBeginn) + 1;
    if (cBeginn == 0) 
        break;
    }
return null;
};    










function delCookie (Name)
{
var weg = new Date ();
weg.setTime (weg.getTime () - 1);
var cWert = getCookie (Name);
if (cWert != null)
    document.cookie = Name + "=" + cWert + "; expires=" + weg.toGMTString ();
}








function putCookie (Name, Wert)
{
var expires = new Date ();
expires.setTime (expires.getTime () + (24 * 60 * 60 * 1000 * 30));
document.cookie = Name + "=" + Wert.toString () + "; expires=" + expires.toGMTString ();
}