Custom image log-in and log-out on Navigation

Hey, I am trying to make a custom looking log-in and log-out button on the Secondary Menu on my website B-Linda ( http://www.b-linda.net ). For some reason My code puts the button in every menu on the website, even the bottom and Main Menu. I can’t figure this out. Can someone please help me?

Here is my code I’m working with on header.php

[Code moderated as per the Forum Rules. The maximum number of lines of code that you can post in these forums is ten lines. Please use the pastebin]

Thank you so much! Its driving me crazy