--- /dev/null
+#import "ITSlideVerticallyWindowEffect.h"
+
+
+@implementation ITSlideVerticallyWindowEffect
+
+
+- (void)performAppear
+{
+ NSLog("ITSlideVerticallyWindowEffect does not implement performAppear.");
+}
+
+- (void)performVanish
+{
+ NSLog("ITSlideVerticallyWindowEffect does not implement performVanish.");
+}
+
+
+@end