xschema: problem

[Tjerk Wolterink]

I want to define an schema
that allows the following documents:

The name of the elements do not matter,
but all the elements should have the following
attribute:

<xsd:attribute name="type" type="xsd:string"/>



thus allows the following documents


<doc type="multiple">
<name type="string"/>
<mobile-phone-number type="number"/>
<more-info type="xhtml">
</more-info>

</doc>


Is that possible with xschema?