how to do not rewrite images, css files, js files at while url rewriting with using UrlRewritingNet

hi. i have succesfully integrated 
UrlRewritingNetto my project
now i can rewrite urls


but i dont wanna rewrite images css files js files etc
i only want to rewrite url as you can also guess


i need help


for example how do i need to edit this code to achive this



      <add name="Rewrite"  virtualUrl="^~/PokePokedex/(.*)/(.*).aspx"
           rewriteUrlParameter="ExcludeFromClientQueryString"
           destinationUrl="~/Pokedex-Pokemon.aspx?PokemonId=$1&amp;PokemonName=$2"
           ignoreCase="true" />
...