Htaccess ignore folder - php

Question

I'im trying to make a admin system for a site, but the htaccess ruins it D:
The admin part is in a folder named admin.
My htacces to far:
Options +FollowSymLinks -Indexes
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(admin)$ admin/index.php
RewriteRule ^([\wæøå]+)$ index.php?page=$1 [QSA]
RewriteRule ^([\wæøå]+)/$ index.php?page=$1 [QSA]
RewriteRule ^(nyhed)/([\w\d\-æøå]+)$ index.php?page=$1&nyhed=$2 [QSA]
RewriteRule ^(nyhed)/([\w\d\-æøå]+)/$ index.php?page=$1&nyhed=$2 [QSA]
But won't let me in that folder?
So I did a if in my index:
if($_GET["page"] == "admin"){
header("location:http://google.com");
}
But that won't do anything either, and no errors D:

Answer 1

RewriteCond lines can be strung together as you have them, but they only impact the first rule they come to.
Options +FollowSymLinks -Indexes
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php?page=$1 [QSA]
This will send all requests for non-existent directories and files to index.php. Files and directories that exist won't be impacted. The other rules are unnecessary.

Answer 2

This is your problem:
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
You are rewriting to a directory named admin which obvously exists in your file system as such Apache says:
if this path does not exist as a directory path or as a file path continue with the rewrites
That is why it is not quite rewriting the way you would expect.