var logoVisible = true;

document.observe("dom:loaded", function() {
  Element.hide('gallery2');
  Element.hide('gallery3');
  Element.hide('gallery4');
  Element.hide('gallery5');
  Element.hide('bio');
});

function hideLogo() {
	if (logoVisible) {
		Element.show('bio');
		new Effect.BlindUp('logo');
		logoVisible = false;
	}
}

function showLogo() {
	if (!logoVisible) {
		new Effect.BlindDown('logo');
		logoVisible = true;
	}
}