how to save xml file from html page

[wademoose]

I have requirement to save an XML document which is displayed in a HTML page.The scenario is like this: I am sending search request to the server and in return I am getting xml file but displayed in html page. What I want is to save client-side the xml file displayed inside the html form, using javascript, asp.net (C#).Please see this link (server return file like this)http://www.w3schools.com/dom/books.xml