[bosmania]

function SetTag (playerid, tag)
{
new name [ MAX_PLAYER_NAME ];
new newname [MAX_PLAYER_NAME];

GetPlayerName ( playerid , name , sizeof(name));

format ( newname , sizeof ( newname ) , "[%s].%s", tag, name);

SetPlayerName ( playerid , newname );

return 1;
}

this is the settag function