Php/mysql $select - need to create two

[JOEY1]

I need to create a PHP form which will allow the user to select two separate dates, which return the values stored in the table in the MySQL database between the dates selected by the user. The code below will allow the user to select one date

$query2 = mysql_query("SELECT transaction_date FROM transaction") or die(mysql_error());
$numrows = mysql_num_rows($query2);
echo "<br /><br />";
echo "<form action='http://bytes.com/n.php' method='POST'> <select name='toselect' >";
 
while ($row = mysql_fetch_assoc($query2))
{
$transaction_date = $row['transaction_date'];
 
        echo "<option value='$transaction_date'>$transaction_date</option>";
 
}
echo "
</select> <button type='submit'  name='submit' value='$transaction_date' >Select A Date </button> </form>    
    ";

[Dormilich]

The code below will allow the user to select one date

just add a second dropdown?