はてなblogのカテゴリーをtag cloudちっくにする

act_as_tagcloud_for_hatena_blog_categories.js

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script>
// タグクラウドもどき
(function($) {
	$(function() {
		var MAX_LEVEL = 6;
		var ZOOM_INCREASE = 0.4;
		var maxCount = 0;
		var categories = $(".hatena-module-category ul li a");
		// 一番大きなタグを取得
		categories.each(function() {
			var elmText = $(this).text().trim();
			var m = elmText.match(/(.+) \((\d+)\)/);
			// m: ["brew (4)", "brew", "4", index: 0, input: "brew (4)"]
			if (m) {
				var count = parseInt(m[2]);
				maxCount = Math.max(maxCount, count);
			};
		});

		var distance = parseInt(maxCount / MAX_LEVEL);
		// cssを変更
		categories.each(function() {
			var elm = $(this);
			var elmText = elm.text().trim();
			var m = elmText.match(/(.+) \((\d+)\)/);
			if (m) {
				var category = m[1];
				var count = parseInt(m[2]);

				var level = parseInt(count / distance);
				var zoomPercent = (1 + level * ZOOM_INCREASE) * 100;
				elm.css('font-size', zoomPercent + "%");
				elm.text(category);
				elm.attr('title', elmText);
			};
		});
	});
})(jQuery);
</script>