Switching between PageDown and Redactor editors

gistfile1.js

var editors = {
	Markdown: {
		name: "Markdown",
		select: function() {
			$("'.editor").addClass("editor-md");
			$("#wmd-button-bar").show();
			this.init();
		},
		init: function () {
			if ($(".editor-md").length > 0 && !$(".editor-md").data(this.name)) {
				var editor = new Markdown.Editor(
					new Markdown.Converter(),
					null,
					null,
				);
				editor.run();

				$(".editor").data(this.name, true);
			}
		},
		dispose: function () {
			$("#wmd-button-bar").hide();
			$(".editor").removeClass("editor-md");
		}
	},
	HTML: {
		name: "HTML",
		select: function() {
			$(".editor").addClass("editor-html");
			this.init();
		},
		init: function () {
			$(".editor-html textarea").redactor();
		},
		dispose: function () {
			$(".editor textarea").destroyEditor();
			$(".editor").removeClass("editor-html");
		}
	}
};

self.initEditors = function() {       

	// initialize content editors
	$.each(editors, function(key, e) {
		e.init();
	});

	// editor selector
	$('select[name="ContentFormat"]').change(function () {
		var editor = editors[$(this).val()];
		if (editor) {
			// dispose other editors
			$.each(editors, function (key, e) {
				if (key != editor.name) {
					e.dispose();
				}
			});

			// run the editor select function
			editor.select();
		}
	});
};