window.addEvent('domready', function() {
  var share = $('share');
  var shareFX = new Fx.Tween(share); 

  shareFX.set('opacity', 0.7);

  share.addEvent('mouseleave', function() {
    shareFX.start('opacity', 0.7);
  });

  share.addEvent('mouseenter', function() {
    shareFX.start('opacity', 1);
  });


  $$('ul.level_2').setStyle('left', 'auto');
  $$('ul.level_2').setStyle('right', '0');
  $$('ul.level_2').setStyle('opacity', '0');

  var submenus = $$('li.submenu');

  submenus.addEvent('mouseenter', function() {
    this.getChildren('ul').tween('opacity', 1);
  });

  submenus.addEvent('mouseleave', function() {
    this.getChildren('ul').tween('opacity', 0);
  });

});