Create iTunes Scrollbars

Hello!
I have an application and as a finishing touch I would like my scroll bars to be like the ones in itunes. Does anyone know how to do this? Like the ones in this picture : http://brandonwalkin.com/blog/images/iTunes/Scrollbars.png
Thanks,
Blake

 

ok

 

I was able to do it!
Here is the code I used for anyone who wants it:

Code:

-(void)drawKnob{
	NSRect knobRect = [self rectForPart:NSScrollerKnob];
	NSRect newRect = NSMakeRect(knobRect.origin.x+1, knobRect.origin.y, knobRect.size.width - 2, knobRect.size.height);
	NSBezierPath *path = [NSBezierPath bezierPathWithRoundedRect:newRect xRadius:5 yRadius:5];
	NSGradient * gradient = [[NSGradient alloc] initWithColorsAndLocations:[NSColor colorWithDeviceRed:(float)173/255 green:(float)185/255 blue:(float)203/255 alpha:1.0],0.0, 
							 [NSColor colorWithDeviceRed:(float)117/255 green:(float)135/255 blue:(float)164/255 alpha:1.0], 1.0, nil];
	[gradient drawInBezierPath:path angle:0];	
	
}