Changed the file structure for ease of handling from tsd and added several utility classes.

threejs/detector.d.ts

@@ -0,0 +1,16 @@
+// Type definitions for Detector.js
+// Project: https://github.com/mrdoob/three.js/blob/master/examples/js/Detector.js
+// Definitions by: Satoru Kimura <https://github.com/gyohk>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+interface DetectorStatic {
+	canvas: boolean;
+	webgl: boolean;
+	workers: boolean;
+	fileapi: boolean;
+	
+	getWebGLErrorMessage(): HTMLElement;
+	addGetWebGLMessage(parameters?: {id?: string; parent?: HTMLElement}): void;
+}
+
+declare var Detector: DetectorStatic;