public IMarkupFragment findMarkupInAssociatedFileHeader(final Component child)
{
IMarkupFragment markup = getAssociatedMarkup();
IMarkupFragment childMarkup = null;
MarkupStream stream = new MarkupStream(markup);
while (stream.skipUntil(ComponentTag.class) && (childMarkup == null))
{
ComponentTag tag = stream.getTag();
if (tag instanceof WicketTag)
{
WicketTag wtag = (WicketTag)tag;