def index
        
    # Pick random number from 1 to 4 inclusive.
    i = 1 + rand(4)

    # Choose image and name that corresponds 
    # to the random number.
    if i == 1
        @img = 'fred-flintstone.gif'
        @name = 'Fred Flintstone'
    elsif i == 2
        @img = 'wilma-flintstone.jpg'
        @name = 'Wilma Flintstone'
    elsif i == 3
        @img = 'barney-rubble.png'
        @name = 'Barney Rubble'
    else
        @img = 'betty-rubble.jpg'
        @name = 'Betty Rubble'
    end
 
end