function start () {
	for ( var i = 1; i <= 24; i++ ) {
		jQuery('#animation_'+i).hide();
	}
	animation('1');
}

function animation ( n ) {
	
	if ( n < '10' ) {
		jQuery('#animation_'+n).show();
		n++;
		window.setTimeout(function(){animation(n);}, 500);
	}
	else {
		if ( n < '12' ) {
			jQuery('#animation_'+n).show();
			n++;
			window.setTimeout(function(){animation(n);}, 1000);
		}
		else {
			if ( n >= '12' && n < '23' ) {
				if ( n%2 == 0 ) {
					jQuery('#animation_'+(n-2)).hide();
					jQuery('#animation_'+(n-1)).hide();
				}
				jQuery('#animation_'+n).show();
				n++;
				window.setTimeout(function(){animation(n);}, 1000);
			}
			else {
				if ( n == '22' || n == '23' ) {
					jQuery('#animation_'+n).show();
					n++;
					window.setTimeout(function(){animation(n);}, 1000);
				}
				else {
					if ( n == '24' ) {
						jQuery('#animation_'+(n-1)).hide();
						jQuery('#animation_'+n).show();
						window.setTimeout(function(){start();}, 5000);
					}
				}
			}
		}
	}
}

jQuery(document).ready(function() {
	window.setTimeout(function(){animation('1');}, 50);
});