I have an XML doc with a structure like this:

<Book>
    <Title title="Door Three"/>
    <Author name ="Patrick"/>
</Book>

<Book>
    <Title title="Light"/>
    <Author name ="Roger"/>
</Book>

I want to be able to melodramatically add XML nodes to this XML in a particular place. Lets say I wanted to add a Link node as a child to the author node where the name is Roger.

I think it's best if the function containing this logic is passed a param for the name to add an XML node under, please advise and what's the code I need to add XML nodes to a certain place in the XML?

Now I am using .AppendChild() method but it doesn't allow for me to specify a parent node to add under...