views exposed filter

Hi

I have added Autocomplete user field in exposed filter in views.

I want block user is not display in Autocomplete user field.
Now All user is display in user field.
How to set condition in Autocomplete user field.

Thanks
Mayur

I am trying to change the default date value of an exposed views filter select element from "-Year" to "Select a Year". All other form elements can be easily changed with hook_form_form_ID_alter but not a date select.

Can anybody point me in the right direction with this?