function getCookie(name){
   var i=0;
   var suche = name+"=";
   while (i<document.cookie.length){
      if (document.cookie.substring(i, i+suche.length)==suche){
         var ende = document.cookie.indexOf(";", i+suche.length);
         ende = (ende>-1) ? ende : document.cookie.length;
         var cook = document.cookie.substring(i+suche.length, ende);
         return unescape(cook);
      }
      i++;
   }
   return null;
}

function setCookie(name, wert, temp) {

   if(temp == null) {
      temp = false;
   }

   if(temp == false) {
      var expires = new Date();
      expires.setTime(expires.getTime() + 3600000);
      cook += "expires=" + expires.toGMTString() + "; ";
   }
   var cook = name + "=" + unescape(wert) + "; ";
   cook += "path=/; ";
   document.cookie = cook;
}

function eraseCookie(name) {
   var cook = name + "=; expires=Thu, 01-Jan-70 00:00:01 GMT"
   //cook += (domain) ? "domain="+domain : ""
   cook += "path=/; ";
   document.cookie = cook
}

function checkCookie() {
   setCookie("CookieTest", "OK")
   if (!getCookie('CookieTest')) {
      return false
   } else{
      //eraseCookie('CookieTest')
      return true;
   }
}