my_xml.firstChild = text
my_xml.firstChild.nextSibling = <node>text<node>text</node>text</node>
my_xml.firstChild.nextSibling.firstChild = text
my_xml.firstChild.nextSibling.firstChild.nextSibling = <node>text</node>
my_xml.firstChild.nextSibling.firstChild.nextSibling.firstChild = text
my_xml.firstChild.nextSibling.firstChild.nextSibling.nextSibling = text
my_xml.firstChild.nextSibling.nextSibling = text
my_xml.lastChild = text
my_xml.lastChild.previousSibling = <node>text<node>text</node>text</node>
my_xml.lastChild.previousSibling.lastChild = text
my_xml.lastChild.previousSibling.lastChild.previousSibling = <node>text</node>
my_xml.lastChild.previousSibling.lastChild.previousSibling.lastChild = text
my_xml.lastChild.previousSibling.lastChild.previousSibling.previousSibling = text
my_xml.lastChild.previousSibling.previousSibling = text
my_xml[0] = text
my_xml[1] = <node>text<node>text</node>text</node>
my_xml[1][0] = text
my_xml[1][1] = <node>text</node>
my_xml[1][1][0] = text
my_xml[1][2] = text
my_xml[2] = text
