help about using array

Hello

I know how tu use array for <select> features in {html_options} like

.php
$email_canomaplist = array(
'yahoo'   => '@yahoo.com',
'hotmail' => '@hotmail.com',
'gmail' => '@gmail.com''
);


.tpl
{section name=email loop=$num}
...
Select your Domain:
<select name="email_canomap[{$emailtab[email].mailid}]">
{html_options options=$email_canomaplist
selected=$emailtab[email].canomap}
</select>
...
{/section}

But I do not now how to dispay

"your domain is : @gmail.com"

should be something like

.tpl
your domain is : {$email_canomaplist.$emailtab[email].canomap}

I know the syntax is wrong but I've not found the correct one :-(

Regards

LAurent