Flexicontent and RSForm pro

Hi,
to retrieve the value of a custom mail field, I used the code below and I built directly into a hidden field to my form.
//
$db = & JFactory::getDBO();
$fcitem_id= JRequest::getInt('id',0);
$fccat_id= JRequest::getInt('cid',0);
$view= JRequest::getVar('view');
if ($view!='items' && $view!='item' && $view!='article') {
return "not in items view";
}
$field_id=17;
if ($fcitem_id) {
$query = 'SELECT c.title, c.alias, f.value'
.' FROM '.'#'.'__content AS c '
.' LEFT JOIN '.'#'.'__flexicontent_fields_item_relations AS f'
.' ON f.item_id = c.id AND f.field_id='.(int)$field_id
.' WHERE c.id = ' . $fcitem_id;
$db->setQuery($query);
$itemdata = $db->loadObject();
$item_title = $itemdata->title;
}
return $itemdata->value;
//

But here's what I get:
a: 2: {s: 4: "addr"; s: 16: "my_email_address@mail.com"; s: 4: "text"; s: 0: "";}
I would only obtain this: my_email_address@mail.com

Do you have any idea what I need to change?
Thanks

after some research, I found a solution:
I turned my custom mail field by simple text field.
So, I get a clean result in Form RS, and I just added the <a href=""> </a> tag in the item template .
Very simple.

good thanks for sharing solution