How do i determine if an XML array element exists in a hash?

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<xml version, encoding & SOAP Envelope header stuff...>
<account>
    <accountId>001</accountId>
...
    <accountName>Account 001</accountName>
</account>
</SOAP Envelope stuff...>

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for each (asset that exists) 
{
$array = (accountId, accountname, assetId, assetName);

(do stuff with the array);
}

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my $data1 = $xml->XMLin($xmlResponse);
foreach my $account (@{$data1->{'account'}}) {
   
...
        print "\nIt didn't process\n";
    }
}

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Bad index while coercing array into hash at c:/temp/parseit.pl line (e
+quivelant of 7 in this case).

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