Every occurance of Simonetti on this page will be replaced by the first name in the math.xml file.
Simonetti is okay with this because it will illustrate yet another use for XML files.
This page is set up so that a button will trigger the swap, but Simonetti says that the swapper function could be run when the page is loaded by using an "onload" event in the <body> tag, so that no one would ever see that Simonetti was written on the original page.