function africa() {
   $('.africa,.photosBoxTopInner').slideDown('slow');
	
	$('.asia,.australasia,.europe,.northAmerica,.southAmerica').slideUp('slow');
}

function asia() {
   $('.asia,.photosBoxTopInner').slideDown('slow');
	
	$('.africa,.australasia,.europe,.northAmerica,.southAmerica').slideUp('slow');
}

function australasia() {
   $('.australasia,.photosBoxTopInner').slideDown('slow');
	
	$('.africa,.asia,.europe,.northAmerica,.southAmerica').slideUp('slow');
}

function europe() {
   $('.europe,.photosBoxTopInner').slideDown('slow');
	
	$('.africa,.asia,.australasia,.northAmerica,.southAmerica').slideUp('slow');
}

function northAmerica() {
   $('.northAmerica,.photosBoxTopInner').slideDown('slow');
	
	$('.africa,.asia,.australasia,.europe,.southAmerica').slideUp('slow');
}

function southAmerica() {
   $('.southAmerica,.photosBoxTopInner').slideDown('slow');
	
	$('.africa,.asia,.australasia,.europe,.northAmerica').slideUp('slow');
}