RSS, or “Really Simple Syndication” is a format for distributing and gathering dynamically generated content from sources across the Internet, including newspapers, magazines, and blogs. RSSJS, or “RSS To Javascript“, allows you to display this content within your own web pages and to do so without having to possess any XML knowledge or skills. RSSJS will take ANY RSS feed and create a very simple Javascript that can be coded into ANY HTML document. The resulting Javascript output can be manipulated using CSS and even scrolled as we have done in the “News Headlines” example. – Source

Recently WordPress.org has launched a new plugin called RSSJS. The new lightweight WordPress plugin simply creates an RSSJS feed for your WordPress site. All you will be needing to do is install and activate it.