BrowserHawk makes is very easy to detect disabled JavaScript, disabled cookies, and several other settings which may be disabled such as ActiveX controls and even SSL.
For details on how to check for disabled settings review the specific properties of interest in the Property and Reference Guide.
See Also:
JavaScriptEnabled Property (ActiveX/COM)
JavaScriptEnabled Property (.NET)
CookiesEnabled Property (ActiveX/COM)
PersistentCookies Property (.NET)
SessionCookies Property (.NET)
ActiveXEnabled Property (ActiveX/COM)
ActiveXEnabled Property (.NET)