/*
* call-seq:
* root
*
* Get the root node for this document.
*/
static VALUE root(VALUE self)
{
xmlDocPtr doc;
Data_Get_Struct(self, xmlDoc, doc);
xmlNodePtr root = xmlDocGetRootElement(doc);
if(!root) return Qnil;
return Nokogiri_wrap_xml_node(Qnil, root) ;
}