DocType problem

[Howida]

For the aim of following W3C standards while designing

the web application, a correct DocType should be

declared for the documents in order for the browsers

to render them in the "Strict mode". When the DocType

is not correctly declared, the document would be

rendered in "Quirks mode", which would be used only to

target older browsers, while we are targeting the

latest browsers.
 
My target would be HTML 4.01 Frameset docType, as I'm

using frameset with many frames. I could very easily

declare the DocType in the document of each separate

frame, but I couldn't declare the DocType of the

Frameset document itself.
Using the evironment variable DominoCompleteDocType in

notes.ini file and setting its value to 2 , I can now

clearly see that the DocType of the Frameset document

is set to HTML 4.01 Frameset as intended when I view

the page source on the browser.
Yet, for some reason the document is still rendered in

Quirks mode rather than Strict mode, which results in

malfunctioning of many CSS features which the design

depend on.

I need help to have a solution to this issue as I

can't use many of the css features like online height,

working in strict mode, etc.....