To transfer your domain away, you need to contact your new registrar that will inform you about their procedure. Depending on the TLD, they might require you to unlock your domain and provide the authorization code. If so, you can process as described below:
To get the authorization code (if required):
1. Log on to your EuroDNS account
2. Go to My domains > Manage my domains
3. Click on the concerned domain
4. In the field Transfer to another (on the page bottom), click Registrar
5. Click Confirm
6. The auth code will be sent to the account email
To unlock the domain (if required):
1. Log on to your EuroDNS account,
2. Go to My domains > Manage my domains
3. Click on the domain to unlock
4. Click Unlock on the page bottom