function closeModalbox( )
{
	mb = document.getElementById( 'closeModalbox' );
	if ( mb != null ) {
		// hide the modal box
		Modalbox.hide();
		// refresh the current page
		location.reload(true);
	} else {
		// resize to content (in case of validation error messages)
		Modalbox.resizeToContent()
	}
	return true;
}