Multiple Views Using One Window

FROM : Philip Bridson
DATE : Sat Jan 19 05:32:15 2008

Hi everyone, I have been programming for a short while and have been 
picking it up quite quickly but I am now stuck. I have 3 nib files, 
one being the main window, and the other two as custom views. The 
main window has an NSBox and Next/Cancel buttons at the bottom of the 
window. I want to load a different view, (which are stored in their 
own nibs), into the NSBox each time I press 'Next'. I know I have to 
load the nib with [NSBundle loadNibNamed:name owner:_owner] but how 
do I get that information into the NSBox of the Main Window?

Any help would be greatly appreciated.