# .htaccess rules:

RewriteCond %{QUERY_STRING} user=(.+)
RewriteCond %{QUERY_STRING} password=(.+)
RewriteRule ^index\.html?(.*) index\.php?user=%1&password=%2 [NC,L]


#url : index.html?user=myusername&password=mypassword
# What i see:
# user=mypassword
# password = (e.g. empty)