+// Setter for referal id (no bigintval, or nicknames will fail!)
+function setReferalId ($refid) {
+ $GLOBALS['refid'] = $refid;
+}
+
+// Checks if 'refid' is valid
+function isReferalIdValid () {
+ return ((isset($GLOBALS['refid'])) && (getReferalId() !== NULL) && (getReferalId() > 0));
+}
+
+// Getter for referal id
+function getReferalId () {
+ return $GLOBALS['refid'];
+}
+