error need to correct when adding "domain alias"

[adigit]

other problems:

1. when the 1st domain added, status is "wait to be added", can't change the status of domain by clicking the "icon" in front to change.
however, once added 2nd domain, both domains status automatically changed to "ok"

2. cannot delete the domain alias;

3. when try to add the alias domain to another new domain as alias, it's doesn't work. this is right, but should it be better if there is a warning prompt.