jQuery().ready(function(){
	$('.bubble').click(function(){
		var current_id = $('.bubble.selected').attr('id');
		var next_id = $(this).attr('id');
		
		$('#header_images .titles_navigation').fadeOut('slow');		
		$('#' + current_id + '_content').fadeOut('slow', function(){
			$('#header_images .titles_navigation').fadeIn('slow');	
			$('#' + next_id + '_content').fadeIn('slow');
			$('#' + next_id).addClass('selected');
			$('#' + current_id).removeClass('selected');
		});
	});
});

function next_item(){
		var current_id = $('.bubble.selected').attr('id');
		if(current_id) {
			var current_id_num = current_id.replace('header_title_item_', "");
			current_id_num++;
			if($('#header_title_item_' + current_id_num).attr('class') != undefined){
				next_id = 'header_title_item_' + current_id_num;
			} else {
				next_id = 'header_title_item_0';
			}
			$('#header_images .titles_navigation').fadeOut('slow');		
			$('#' + current_id + '_content').fadeOut('slow', function(){
				$('#header_images .titles_navigation').fadeIn('slow');	
				$('#' + next_id + '_content').fadeIn('slow');
				$('#' + next_id).addClass('selected');
				$('#' + current_id).removeClass('selected');
			});	
		}
}