set default value to current user on type lookup select Box field on non sys_user table.

[Green2]

I have a type Lookup select Box variable field  on a custom table . the field will show 2 values separated by , display_name_base,name  display_name_base is Account number name is Name. 

is there a way to  auto populate the users details in the requested for field on the form. when javascript:gs.getUserID(); is used in Default value of variable sys_id is auto populated.

pleas suggest if this can be achieved by scripting ? 

[Musab Rasheed · Accepted solution]

Hello @green : Please use gs.getUserDisplayName() instead of gs.getUserID(). It will display name of logged in user instead of sys_id. Please mark my answer as correct or hit like based on impact.