Cookie aanmaken nadat functie is uitgevoerd

<script type="text/javascript">
function csearch(DBadblockblocker) {
  var str = document.cookie;
  var zstr = DBadblockblocker + "=";
  var start = str.indexOf(zstr, 0);
  if(start == -1) {
    // If cookie is not detected -> Check if Adblock is enabled
        //adblockcheck();
        // After the popup a cookie called DBadblockblocker met value true word aangemaakt
        document.cookie = DBadblockblocker + "=" + "true;path=/";
        alert('Cookie is aangemaakt'); 


        // Give alert when cookie has been made
  } else {
    alert('Cookie bestond al');
        // Give alert when cookie already excists
  }
}
variable = "admin";
csearch(variable);
</script>