Embed GitHub Gists in Tumblr

tumblrGist.js

$(function() {
	var gistPrefix = 'https://gist.github.com/';

	var embedGists = function() {
		$('a[href^="' + gistPrefix + '"]').each(function(index, anchor) {
			var href = $(anchor).attr('href');
			var gistId = href.substring(gistPrefix.length);
			var url = gistPrefix + gistId + '.json?callback=?';
			$.getJSON(url, function(gistData) {
				var cssUrl = gistPrefix + gistData.stylesheet;
				if ($('link[href="' + cssUrl + '"]').length == 0) {				
					$('head').append('<link rel="stylesheet" href="' + cssUrl + '" type="text/css" />');
				}
				$(anchor).replaceWith(gistData.div);
			});
		});
	};
	
	var infiniteScrollUpdated = function() {
		embedGists();
	};
	
	embedGists();
	
	// export behavior for infinite scroll
	var GitHub = {};
	GitHub.infiniteScrollUpdated = infiniteScrollUpdated;
	window.GitHub = GitHub;
});