Plugin button(s) breaking editor, again

Hi again,

My plugin is breaking my editor's output - the editor literally doesn't show. For some reason, as soon as I comment the addCommand section in my plugin's js file it all works fine, except the buttons don't do anything.

Here's the code:

// Keep cache clean with constantly changing timestamp
CKEDITOR.timestamp = (new Date()).valueOf();


// --- PLUGIN CODE
// Add plugin
CKEDITOR.plugins.add("encryptstring", {
	// initialise function
	init: function(editor)
	{
		// Plugin name
		var pluginName = "En/De-crypt strings";
		
		// Add main js file
		CKEDITOR.dialog.add(pluginName, this.path + "encryptstring/plugin.js");
		
		// Add dialog functions
		editor.addCommand(encrypt, {exec:encryptDialogFunc});  // - These two lines commented 

		editor.addCommand(decrypt, {exec:decryptDialogFunc});  // - makes the buttons (and editor) show properly...
		
		// Add buttons
		editor.ui.addButton("encryptstring", {
			label: "Create encrypted string",
			command: encrypt,
			icon: this.path + "lock.png"
		});
		editor.ui.addButton("decryptstring", {
			label: "Decrypt encrypted string",
			command: decrypt,
			icon: this.path + "unlock.png"
		});
	}
});

Am I doing something wrong? By the way, the functions the commands are running 'encryptDialogFunc' etc. are created in another file, which is already on the page. (can be run from console)