Nothing
doc <- xmlTree()
doc$addTag("EXAMPLE", close= FALSE, attrs=c("prop1" = "gnome is great", prop2 = "& linux too"))
doc$addComment("A comment")
doc$addTag("head", close= FALSE)
doc$addTag("title", "Welcome to Gnome")
doc$addTag("chapter", close= FALSE)
doc$addTag("title", "The Linux Adventure")
doc$addTag("p")
doc$addTag("image", attrs=c(href="linux.gif"))
doc$closeTag()
doc$closeTag()
doc$addTag("foot")
doc$closeTag()
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