def __showModal(params=None):
from javax.swing import JDialog
windowName = 'GWFileBrowser'
if windowName in system.gui.getWindowNames():
window = system.nav.openWindowInstance(windowName, params)
system.nav.centerWindow(window)
rc = window.getRootContainer()
#rc.load()
cp = window.getContentPane()
window.setVisible(False)
dlg = JDialog(None, True)
dlg.setContentPane(cp)
dlg.setSize(window.getWidth(), window.getHeight())
dlg.setMinimumSize(window.getMinimumSize())
dlg.setMaximumSize(window.getMaximumSize())
dlg.setLocation(window.getX(), window.getY())
#dlg.setLocationRelativeTo(None)
dlg.setTitle(window.getTitle())
dlg.setVisible(True)
system.nav.closeWindow(window)
return rc.Result
return None
