Extension to CCButton class

// extends http://johnehartzog.com/2009/10/easy-to-create-buttons-with-cocos2d/
// give you a button that toggles between two images
// uses cocos2d 0.9, so all the classes are called CCMenuItem instead of MenuItem.
// other than that it should work with older versions of cocos2d

+ (id)buttonWithImage:(NSString*)file
			 andImage:(NSString *)otherFile
		   atPosition:(CGPoint)position
			   target:(id)target
			 selector:(SEL)selector
{
	
	CCButtonItem *button1 = [CCButtonItem buttonWithImage:file target:target selector:selector];
	CCButtonItem *button2 = [CCButtonItem buttonWithImage:otherFile target:target selector:selector];
	CCMenuItemToggle *toggle = [CCMenuItemToggle itemWithTarget:target selector:selector items:button1,button2,nil];
	CCMenu *menu = [CCMenu menuWithItems:toggle, nil];
	menu.position = position;
	return menu;
}
	

The receiver method

// this is the selector passed to buttonWithImage:

-(void)pauseToggle:(id)sender {
	CCMenuItemToggle *toggle = (CCMenuItemToggle *)sender;
	
	if ([toggle selectedIndex] ==  0) {
		[self resume:sender];
	} else {
		[self pause:sender];
	}
	
}