anchor.diff:                  colorField,        // field: the field this stream uses.
                   0);                    // start_index:  
   
  +	      
  +	      
  +
   
               // Associate the triangle indices Buffer with the primitive.  
               brainPrimitive.indexBuffer = indexBuffer;  
      
               return brainShape;  
  -          }  
  +          }
      
             /** 
              * This method gets called every time O3D renders a frame. 
  
positive.code: 	      
  	    
  	    // White ambient light
  	    light_ambient_param.value = [0.04, 0.04, 0.04, 1];
  	    // Reddish diffuse light
  	    light_diffuse_param.value = [0.8, 0, 0, 1];
  	    // White specular light
  	    light_specular_param.value = [0.5, 0.5, 0.5, 1];
  	      
  
negative.code:           // Events  
            // Run the init() function once the page has finished loading.  
            // Run the uninit() function when the page has is unloaded.  
            //window.onloa = init;  
            window.onunload =  uninit;  
            // global variables  
            var g_o3d;  
            var g_math;  
  