QuickBooks/XML/Node.php
public function addChildAt($path, $node, $create = false)
	{
		return $this->_addChildAtHelper($this, $path, $node, $create);
	}
public function addChildAt($path, $node, $create = false)
	{
		return $this->_addChildAtHelper($this, $path, $node, $create);
	}
Add a child XML node at a particular path

@param string $path
@param QuickBooks_XML_Node $child
@param boolean $create
@return boolean