Budget: fix errors

SE/se-lib/Route/Budget.php

@@ -72,7 +72,7 @@ class Route_Budget extends RouteBase {
 		SE_Layout::dol();
 	}
 
-	private function menu($selectedYear, $groups, $selectedGroups) {
+	private function menu($selectedYear, $groups = array(), $selectedGroups = array()) {
 		//SE_Layout::menu();
 		$year = ($selectedYear)? $selectedYear : date("Y");
 		?>