+function move(direction) {
+ move_by_filter(direction, function() { return true; });
+}
+function move_to_nondeleted(direction) {
+ move_by_filter(direction, function(i) {
+ return !("deleted" in picinfo[files[i]]); });
+}
+function move_to_unnamed(direction) {
+ move_by_filter(direction, function(i) {
+ return !("deleted" in picinfo[files[i]]) &&
+ !("name" in picinfo[files[i]]); });
+}