remove header image on non homepage pages

I want to completely remove mine and the default header image on all pages except the homepage or certain non homepage pages. i would like for the menu to stay at the tope of the screen when scrolling downward so that when i scroll down the page its always in sight. How can i do that?

• This topic was modified 7 years, 5 months ago by dakotadearborn.
• This topic was modified 7 years, 5 months ago by dakotadearborn.
• This topic was modified 7 years, 5 months ago by dakotadearborn.