Simple "if" question

[smackjack]

Hi.

I have some simple code to move a view (called theView) down when a button is pressed. What im trying to figure out is how to move it back up if the same button is pressed again.

Here is the code:

-(IBAction)move {

	
	[UIView beginAnimations:nil context:NULL];
	
	[UIView setAnimationDuration:1.0];
	
	CGPoint pos = theView.center;
	pos.y += 200.0f;
	theView.center = pos;
	
	[UIView commitAnimations];
}

Im thinking it could look something like this:

-(IBAction)move {

	BOOL reverse = NO;
	
	if (reverse = NO);{
	
		[UIView beginAnimations:nil context:NULL];
	
		[UIView setAnimationDuration:1.0];
	
		CGPoint pos = flap.center;
		pos.y += 200.0f;
		flap.center = pos;
	
		[UIView commitAnimations];
		
			reverse = YES;
	}
	
	 if (reverse = YES);{
		[UIView beginAnimations:nil context:NULL];
		
		[UIView setAnimationDuration:1.0];
		
		CGPoint pos = flap.center;
		pos.y -= 200.0f;
		flap.center = pos;
		
		[UIView commitAnimations];
		
			reverse = NO;
	}

}

but this runs the first part (moves it down) and then moves it back up.

What have i done wrong? (Im new to iPhone development so its probably something really silly and easy )