Mailtos and links from a query result table!

Hi!
I need to make mailtos and hiperlinks in a query result table
i dont know wich variable to pass to the <a href =""> to make this happen

my code below is not working! any idea?

printf ("<tr bgcolor='$bgcolor'><td>%s</td><td>%s</td><td><a href='mailto:$myrow[19]'>%s</a></td><td><a
href="$myrow[9]">%s</a></td><td>%s</td><td>%s</td></tr>
",$myrow[1], $myrow[2], $myrow[3], $myrow[19], $myrow[9], $myrow[10]);
$row++;
}
while ($row < $numrows);
printf ("</table>
");
pg_close($db);
?>



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