##
%myhash = @_; #this is where the problem is!!
foreach $key (keys %myhash) {
%subhash = %{$myhash{$key}};
foreach $subkeys (keys %subhash){
$subkey_val = $subhash{$subkeys};
#print "$subkeys and $subkey_val\n";
if ($subkeys eq "competitor_firm" && $subkey_val eq ""){
delete $competitors_only{$key};
}
}
}
####
%myhash = %myoriginalhash;