On July 18, Google added a JavaScript SEO basics section to its Search developer’s guide. It includes general descriptions of how Google processes JavaScript as well as some best practices.

Do you need to perform an Ajax file upload with pure JavaScript? This example lays out the steps to accomplish an Ajax file upload without the need for a JavaScript library like jQuery or Dojo.

W3Schools for HTML and CSS To learn JavaScript you must have some basic knowledge of HTML and CSS. For that w3schools provides some fairly good step by step tutorials for the bare basics.