function weg() {
  document.getElementById('submenu').style.visibility='hidden';
  document.getElementById('muizenval4').style.visibility='hidden';
  document.getElementById('muizenval5').style.visibility='hidden';
  document.getElementById('muizenval6').style.visibility='hidden';
}
function kom() {
  document.getElementById('submenu').style.visibility='visible';
  document.getElementById('muizenval4').style.visibility='visible';
  document.getElementById('muizenval5').style.visibility='visible';
  document.getElementById('muizenval6').style.visibility='visible';
}
window.addEvent('domready', function() {
	var myVerticalSlide_99 = new Fx.Slide('vertical_slide_99').hide();
	$('v_toggle_99').addEvent('click', function(e){
		e.stop();
		myVerticalSlide_99.toggle();
	});
	$('v_toggle_98').addEvent('click', function(e){
		e.stop();
		myVerticalSlide_99.toggle();
	});
});