$(document).ready(function(){
	//References
	var sections = $("#menu li");
	var loading = $("#loading");
	var content = $("#content");
	
	//Manage click events
	sections.click(function(){
		//show the loading bar
		showLoading();
		//load selected section
		switch(this.id){
			case "greenday":
				content.slideUp();
				content.load("http://ptaszynski.biz/www/greenday.php", hideLoading);
				content.slideDown();
				break;
			case "fotoletycja":
				content.slideUp();
				content.load("http://ptaszynski.biz/www/fotoletycja.html", hideLoading);
				content.slideDown();
				break;
			case "firmadlaciebie":
				content.slideUp();
				content.load("http://ptaszynski.biz/www/firmadlaciebie.html", hideLoading);
				content.slideDown();
				break;
			case "teknos":
				content.slideUp();
				content.load("http://ptaszynski.biz/www/teknos.html", hideLoading);
				content.slideDown();
				break;
			case "corinfantis":
				content.slideUp();
				content.load("http://ptaszynski.biz/www/corinfantis.html", hideLoading);
				content.slideDown();
				break;
			case "actus":
				content.slideUp();
				content.load("http://ptaszynski.biz/www/actus.html", hideLoading);
				content.slideDown();
				break;
			case "klub5":
				content.slideUp();
				content.load("http://ptaszynski.biz/www/klub5.html", hideLoading);
				content.slideDown();
				break;
			case "santic":
				content.slideUp();
				content.load("http://ptaszynski.biz/www/santic.html", hideLoading);
				content.slideDown();
				break;
			case "greenparrot":
				content.slideUp();
				content.load("http://ptaszynski.biz/www/greenparrot.html", hideLoading);
				content.slideDown();
				break;
			case "fortuna":
				content.slideUp();
				content.load("http://ptaszynski.biz/www/fortuna.html", hideLoading);
				content.slideDown();
				break;
			case "tiszertyokol":
				content.slideUp();
				content.load("http://ptaszynski.biz/clothes/tiszertyokol.html", hideLoading);
				content.slideDown();
				break;
			case "torby":
				content.slideUp();
				content.load("http://ptaszynski.biz/clothes/torby.html", hideLoading);
				content.slideDown();
				break;
			case "erasmus":
				content.slideUp();
				content.load("http://ptaszynski.biz/dtp/erasmus.html", hideLoading);
				content.slideDown();
				break;
			case "rotmistrz":
				content.slideUp();
				content.load("http://ptaszynski.biz/dtp/rotmistrz.html", hideLoading);
				content.slideDown();
				break;
			case "impreza":
				content.slideUp();
				content.load("http://ptaszynski.biz/dtp/impreza.html", hideLoading);
				content.slideDown();
				break;
			case "lalka":
				content.slideUp();
				content.load("http://ptaszynski.biz/dtp/lalka.html", hideLoading);
				content.slideDown();
				break;
			case "motyl":
				content.slideUp();
				content.load("http://ptaszynski.biz/dtp/motyl.html", hideLoading);
				content.slideDown();
				break;
			default:
				//hide loading bar if there is no selected section
				hideLoading();
				break;
		}
	});

	//show loading bar
	function showLoading(){
		loading
			.css({visibility:"visible"})
			.css({opacity:"1"})
			.css({display:"block"})
		;
	}
	//hide loading bar
	function hideLoading(){
		loading.fadeTo(1000, 0);
	};
});