fix default side

examples/webgl_materials_nodes.html

@@ -725,9 +725,9 @@
 						}, false );
 
 						addGui( 'side', {
+							DoubleSided: THREE.DoubleSide,
 							FrontSided: THREE.FrontSide,
-							BackSided: THREE.BackSide,
-							DoubleSided: THREE.DoubleSide
+							BackSided: THREE.BackSide
 						}, function ( val ) {
 
 							defaultSide = Number( val );