public void ElementStart(IFormHandlerContext context)
{
ElementInfo ei = context.CurrentElement;
string typeName = ei.GetAttributeValue("type");
if (typeName == null) throw new Exception("type not specified in <custom>");
Type t = Type.GetType(typeName);
if (t == null) throw new Exception("Type not found: " + typeName);
_handler = (IElementHandler) Activator.CreateInstance(t);
if (_handler == null) throw new Exception("Failed to create instance of type " + typeName);
_handler.ElementStart(context);
}
