Conditional Statement (If.......else)

[tarun]

is the position of 'Add New' remains the same in the list or does it keeps changing also

e.g.
1. I am assuming that the fist time the list looks like
Select a Value
Add New
2. When I have added 'Tarun' using add new, the second time the list should be
Select a Value
Tarun
Add New
3. If I add a new value as Rajesh then the list should be
Select a Value
Rajesh
Tarun
Add New

please confirm