An Update On Javascript Menus And SEO | Sentersoft SEO Blog! http://blog.sentersoftech.com/?p=965... SEOs have traditionally recommended using search engine friendly menu systems such those based on HTML styled with CSS instead of those written in JavaScript. The primary language understood by search engines has been HTML, but now several search engines have learned how to read JavaScript. I recently found an example that reveals how much progress has been made. My observations confirm what software engineer Janis Stipins’ said at SMX East in October 2008, that Google is doing a much better job spidering JavaScript.