public static void AppendToolboxPanel(HtmlDom domForToolbox, string fileName)
{
var toolbox = domForToolbox.Body.SelectSingleNode("//div[@id='toolbox']");
var toolDom = new HtmlDom(XmlHtmlConverter.GetXmlDomFromHtmlFile(fileName));
AddToolDependencies(toolDom);
AppendAllChildren(toolDom.Body, toolbox);
}