Adding new node to XML variable - How to?

[_Nith_]

I have an xml variable (named myXML) with the following node:

<MyInfo>

</MyInfo>

I need to add two <Dept> nodes to the above XML using SetValue.

I tried to assing these two nodes, but only one node is added.

/process-data/myXML/MyInfo/Dept   = "Department1"

/process-data/myXML/MyInfo/Dept   = "Department2"

The above statement overwrite the first statement.

What can I do to get the following result??

<MyInfo>

     <Dept>Department 1</Dept>

     <Dept>Department 2</Dept>

</MyInfo>

Thanks for any advise..

Nith