Function useNativeForDom

object.js:350–355

(orig, shim)

	}

	function useNativeForDom (orig, shim) {
		return function (obj) {
			if (base.isElement(obj)) return orig.apply(this, arguments);
			else return shim.apply(this, arguments);
		};
	}

	function failIfShimmed (failTest) {
		var shouldThrow;