Option value

Hello, i have an option field which has two values in it.ClassA and ClassB.By default it shows ClassA and when i select ClassB, the value is stored in the db and it is shown after i submit it.
I have set option value=0 for classA and 1 for ClassB.Now, when i select Class B and save it, it still shows ClassA but in the db it shows1.
since in the db, it is stored as 1, i want ClassB to be displayed in my form.How can i fix this one.Hope some body would help me.

Thank you
------------others.ini---------------
<?
if ($frm_save == 1)
{

$sql = "update TBL1 SET ARICLASS = '$ariclass'";
$result = ibase_query($connection, $sql);
}
$db = 'Select ARICLASS from TBL1';
$bsc = ibase_query($connection, $db);
while ($row = ibase_fetch_object($bsc))
?>


<SELECT size=1 name=ariclass>
<OPTION value="0"<?php
if ($row->MOB_ARICLASS==0) {
echo ' selected="selected"';
}?>>ARI CLASSA</OPTION>
<OPTION value="1"<?php
if ($row->MOB_ARICLASS==1) {
echo ' selected="selected"';
}?>>ARI CLASSB</OPTION>
</SELECT>

?>

-------------.php....................

<?php
include "dbconnection.ini";

?>
<form name="frm_main" method="post">
<?php
include "others.oam";

?>

<br></b><input type="submit" name="save_button" value="Save"></br>
<input type="hidden" name="frm_save" value="1">
</form>