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[PeejAvery]

You should walk the DOM if you want all child nodes. Here's a simple example.

function walkDOM(obj) {
  // obj is the current DOM object
  alert(obj.innerHTML);

  node = node.firstChild;
  while (obj) {
    walkDOM(obj);
    node = node.nextSibling;
  }
}

// call the walk function
walkDOM(document.getElementsByTagName('body')[0]);