AM 7.0 - any attribute of amUser.xml

Wanted to make the email address non-editable for end user on the /idm/EndUser function of am 7.0. I changed the mail attributeSchema in the <User> section of amUser.xml as follows

<AttributeSchema name="mail"

type="single"

syntax="email"

any="userReadOnly"

i18nKey="u106">

</AttributeSchema>

I mainly changed the any attribute from "display" to "userReadOnly". Then I run the amadmin to remove and add the service back. However, instead of displaying the email address as a label disallowing user editing, the attribute simply disappear completely.Is the userReadOnly work in am 7? If so, what is the syntax? Any help is appreciated.

Thanks

[714 byte] By [612158a] at [2007-11-27 6:02:29]