=== Medium level documentation ===
jsapi.h: http://hg.mozilla.org/mozilla-central/file/tip/js/src/jsapi.hand the files in http://hg.mozilla.org/mozilla-central/file/tip/js/public
Frequently used coding recipes and mappings from JS idioms to SpiderMonkey code: https://developer.mozilla.org/En/SpiderMonkey/JSAPI_Cookbook