text: 
  /**
   * This object stores the WebGLTexture objects for each texture.  They are
   * stored as properties in the object with the property name being the 
   * same as the texture file name.  
   */
  var Textures = {
  
      // Store each loaded texture object here.  Use the file name as the 
      // property name for each, and the value should be the WebGLTexture object.
  
  };