if ($numParams == 1)
{
    my $DBquery= $sth->execute($SearchPhrase);
}
elsif ($numParams == 2)
{
    my $DBquery= $sth->execute($SearchPhrase, $SearchSystem);
}
elsif ($numParams == 3)
{
    my $DBquery= $sth->execute($SearchPhrase, $begDate, $endDate);
}
elsif ($numParams == 3)
{
    my $DBquery= $sth->execute($SearchPhrase, $SearchSystem, $begDate, $endDate);
}