problem creating dom tree

[dreamer]

I have a problem when a try to create my dom tree.

In the constructor i build 2 objects:

QDomDocument *doc=new QDomDocument();
QDomElement root=doc->createElement("root");
doc->appendChild(root);

QDomDocument *doc=new QDomDocument();
QDomElement root=doc->createElement("root");
doc->appendChild(root);

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I'd like to fill the root node with some children and to have a structure like this:

<root>
    <node1>
    some text
</node1>
    <node1>
    sometext
</node2>
</root>

<root>
    <node1>
    some text
</node1>
    <node1>
    sometext
</node2>
</root>

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To obtain this behaviour i make:

QDomElement ele=doc->createElement("node1");
ele.appendChild(doc->createTextNode("some text");
root.appendChild(ele);

QDomElement ele=doc->createElement("node1");
ele.appendChild(doc->createTextNode("some text");
root.appendChild(ele);

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To find a node element i make:

root.elementsByTagName("node1");

root.elementsByTagName("node1");

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To clean the dom tree, a make:

root.clear();

root.clear();

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What's wrang?? how can i obtain my behaviour???