Parse error: syntax error, unexpected T_STRING, expecting ')

Hey all

I really need some help. I am a total newbie in WordPress and was so proud to set up my own page. Then, I guess I got a bit too self- confident and added a code in the function.php to not only change the background colour in my theme but also to change the background image.

Now I get this error when trying to reach my site.

Parse error: syntax error, unexpected T_STRING, expecting ‘)’ in /homepages/46/d371451997/htdocs/wsb6373690801/Demo/wordpress/wp-content/themes/iHealth/functions.php on line 57

This is the coding of my funtions.php

[please use a Pastebin to post large chunks of code, following forum etiquette]

I am trying to figure out whats wrong for hours now but cannot find the error.

Thanks for helping me!!!
Tiffy (Julia)