Are they the same. Javascript definitely is a hindrance for your SEO campaigns, but how about Silverlight? Any experience?
people has been arguing about the effects of javascript in your SEO, not with the whole campaign. sorry for that In terms of getting crawled by crawlers / spiders...
Well while there are still minor arguments left regarding Javascript, Google on the other hand has been able to crawl/understand Javascript since the late 2008. However there are still other factors that Googlebots can't fully interpret with regards to Javascript, still I don't think that it will be a hindrance to your SEO campaign unless of course if used in the wrong way.