myContainer = new DefaultContainerImpl(elem);
filterPanel = new FilterPanel(getContainer());
tableContents = DocumentExt.get().createDivWithClassName(css.tableContent());
elem.appendChild(tableContents);
CssTransitionEvent.addTransitionListener(tableContents, tableContents,
new CssTransitionListener() {
public void onTransitionEnd(CssTransitionEvent event) {
int tableContentTop = tableContents.getOffsetTop();
if (tableContentTop == 0) {
filterPanel.setVisible(false);
}