How to ad an element and remove an element?

[rkckjk]

Basically, I would like to know how to add or remove an elemet from the XML file below using VB .Net:

<?xml version="1.0" standalone="yes"?>
<RECORD>
<TYPE>
<TIME_STARTED>4:44</TIME_STARTED>
<TIME_ENDED>6:33</TIME_ENDED>
</TYPE>
</RECORD>

When the 'TODAY' element is added the XML file would look like this:

<?xml version="1.0" standalone="yes"?>
<RECORD>
<TYPE>
<TODAY>Oct. 26 2004</TODAY>
<TIME_STARTED>4:44</TIME_STARTED>
<TIME_ENDED>6:33</TIME_ENDED>
</TYPE>
</RECORD>

And when the "TODAY' element is removed it would look like the first XML file in this question.

Thanks