How to place 2 different logos on different pages 2011 Theme

Hello,

I am using the twenty eleven theme (child) for a website that is locally hosted (HD). So far I have customized the theme to my liking but to some point I got stuck with something that I want to do: I would like to place 2 different logos on different pages (on the left side of the space above the header image). What is the code that I have to put on header.php if I know the ID’s of the pages i want the second logo to appear?
I’m new with php coding and I thought someone here might has the answer for that.
The names and ID’s of the pages I want the logo to appear are:

Loft ID 17
Imports ID 19
Inspirations ID 161
Photos ID 165

Thank you in advance

Spiros G.