public void handleEvent (Event event) {
popupmenu.setVisible (true);
}
});
TRAY_ITEM.addListener(SWT.DefaultSelection, new Listener()
{
public void handleEvent(Event e)
{
if(DownloadManagerShell.DOWNLOAD_MANAGER_SHELL == null || DownloadManagerShell.DOWNLOAD_MANAGER_SHELL.isDisposed()){
DownloadManagerShell.open();