Displaying N posts and load more button

loadmore.js

var postSize = $(".posts div").size();
var postLimit = 8;
var postDisplay = 8;
var endPosts = false;
$('.posts div:lt('+postDisplay+')').show();
$('#loadmore').click(function () {
	if (postDisplay + postLimit <= postSize) {
		postDisplay += postLimit;
	}
	else {
		postDisplay = postSize;
		endPosts = true;
	}
$('.posts div:lt('+postDisplay+')').show();
	if (endPosts) {
		$('#loadmore').hide();
	}
});