function addGuestbookEntry(toId, f_oTextfield) {
	if (isInteger(toId)) {
		boolConfirmation = false;
    if (!boolConfirmation || confirm("")) {
      if (f_oTextfield.value.length > 0) {
    		var url = '/res/ajax/guestbookAddEntry.php';
    		var params = 'toId=' + toId;
    		params = params + '&text=' + makeParameterURLSafe(f_oTextfield.value);
    		var ajax = new Ajax.Request(
    						url,
    						{method: 'post', parameters: params, onFailure: function(transport) {reportError(transport);}, onSuccess : function(transport) { reportNone(transport, true);}});
        } else alert('Bitte gebe einen Text ein!');
    }
  }
}