gb_counter = 0;
gb_total = 0;

(function($) {
	
	function updateText() {
		$(".gb_title").text("Frage " + (gb_counter + 1) + " von " + (gb_total));
	}
	
	$(document).ready(function() {
		
		gb_total = $(".gb").size();
		updateText();
		
		$(".gb_nav_right_active").live('click', function() {
			if(gb_counter + 1 < gb_total) {
				$(".gb"+gb_counter).addClass("hidden");
				gb_counter += 1;
				$(".gb"+gb_counter).removeClass("hidden");
				updateText();
				if(gb_counter == 1) {
					l = $(".gb_nav_left");
					l.addClass("gb_nav_left_active");
					l.removeClass("gb_nav_left");
				}
				if(gb_counter == 11) {
					r = $(".gb_nav_right_active");
					r.addClass("gb_nav_right");
					r.removeClass("gb_nav_right_active");
				}
			}
		});
		
		$(".gb_nav_left_active").live('click', function() {
			if(gb_counter > 0) {
				$(".gb"+gb_counter).addClass("hidden");
				gb_counter -= 1;
				$(".gb"+gb_counter).removeClass("hidden");
				updateText();
				if(gb_counter == 10) {
					r = $(".gb_nav_right");
					r.addClass("gb_nav_right_active");
					r.removeClass("gb_nav_right");
				}
				if(gb_counter == 0) {
					l = $(".gb_nav_left_active");
					l.addClass("gb_nav_left");
					l.removeClass("gb_nav_left_active");
				}
			}
		});
	});

})(jQuery);
;