#Disallow hotlinking while allowing from blank or localhost, requests for robots.txt and favicons
Options +FollowSymLinks
RewriteEngine on
RewriteCond %{REQUEST_URI} !(^/robots\.txt¦\.ico)$ 
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://(www\.)?sivahomes.com(/)?.*$ [NC]
RewriteRule .*\.(gif¦jpg¦jpeg¦bmp¦pdf)$ [F,L]