Passing properties from ant targets

[Mark Imel]

I'm trying to get a property that i set in a called ant target from the 'parent' ant 
target.
For example:

<target name="parent">
    <antcall target="child" />
    <echo message="${child.property}" />
</target>

<target name="child">
    <input message="Please enter property value" addproperty="child.property" />
</target>

In this example the echoed value is the "${child.property}", instead of the user input.

Any suggestions, or is this even possible?
Regards,
--Mark Imel