try this
// F_RestrictedCode( getcharid(3),"2000000,2000794,2000839,2000637,2000624,2000016,2004000,2003933,2003884" );
function script F_RestrictedCode {
.@aid = getarg( 0,0 );
.@whitelist$ = getarg( 1,"0" );
.@query_result = query_sql("SELECT login.account_id FROM login LEFT JOIN `char` ON login.account_id=`char`.account_id WHERE login.last_ip=(SELECT last_ip FROM login WHERE account_id="+.@aid+" AND account_id NOT IN ( "+.@whitelist$+" ) ) AND `char`.online=1", .@account_id);
return .@query_result;
}