Object to XML and XML to Object

I always need this code... so now its on my page!

   internal static class XmlSerializerHelper
   {
      public static object GetObjectFromXml(string xml, Type type)
      {
         XmlSerializer ser = new XmlSerializer(type);
         object value = ser.Deserialize(new StringReader(xml));
         return value;
      }

      public static string GetXmlFromObj(object obj, Type type)
      {
         string xml;
         XmlSerializer ser = new XmlSerializer(type);
         using (StringWriter writer = new StringWriter())
         {
            ser.Serialize(writer, obj);
            writer.Flush();
            xml = writer.ToString();
         }

         return xml;
      }

      public static string ToXml(this object obj)
      {
         Type type = obj.GetType();
         string xml = GetXmlFromObj(obj, type);
         return xml;
      }

   }