Thank you for your reply. But it is not my goal. Sorry, my english doesn't good enough. May be I explain again.
Below is a list of game name:
A AA
A BB
A CC
B AA
B BB
C AA
C BB
C CC
C DD
The popup windows will show A-Z & 0-9 for choosing. A, B, C , D ......... (only 26 Alphabet & 10 numbers)
If user select "A", then the pointer will jump to A AA
If user select "B", then the pointer will jump to B AA
If user select "C", then the pointer will jump to C AA
If user select "D", then the pointer will jump to A AA (if there is no "D" of the first letter, then it will goto next Alphabet)