public static class HtmlTextWriterExtensions
{
	public static IDisposable RenderTag(this HtmlTextWriter writer, HtmlTextWriterTag tagKey)
	{
	    writer.RenderBeginTag(tagKey);
	    return new HtmlTextWriterTagDisposer(writer);
	}

	public static IDisposable RenderTag(this HtmlTextWriter writer, string tagName)
	{
	    writer.RenderBeginTag(tagName);
	    return new HtmlTextWriterTagDisposer(writer);
	}

	private class HtmlTextWriterTagDisposer : IDisposable
	{
	    private readonly HtmlTextWriter _writer;

	    public HtmlTextWriterTagDisposer(HtmlTextWriter writer)
	    {
	        _writer = writer;
	    }

	    public void Dispose()
	    {
	        _writer.RenderEndTag();
	    }
	}
}