(function ($) {

var self = $.c_essence.index = {
	
	init: function () {
		self.main();
	},
	
	main: function () {
		var now = 1;
		var timer = setInterval(function () {
			$('#main li#main_' + now).fadeOut(500);
			now++;
			
			if ($('#main li').length < now)
				now = 1;
			
			$('#main li#main_' + now).fadeIn(500);
		}, 4000);
	}
	
}

$(function () { self.init(); });

})(jQuery);