hiding web pages. No access to files

[ChrisMayernik]

I'm not the smartest web designer, so I must ask how do I hide the filers and folders from people typing in the address and accessing them.  MY website is www.chrismayernik.com . IF people type http://www.chrismayernik.com/artgallery/themes/  I don't want them to access it and see all those files. Do I just add a index file there? what do I do.  Thanks for your time.

bye,
Chris

[Nibbler]

add a blank or redirecting index.html file there