117529 - When page is rendered as transtition without any changes the javascript will work, however since it is a XHTML and I chage it to a XHTML 1.0 doctype the Javascript does not work.

Status: VERIFIED INVALID

(Core :: JavaScript Engine, defect)

Description

[Mike Petnuch]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.6) Gecko/20011202
BuildID:    0.9.7

The page at http://technologyreview.org:8080/index.en.shtml should have a
scrolling "News" bar on the left, right under the "Reviews" bar.  Also when you
click on one of the links found in the middle section a box should appear and
grow though the page.  Now, index.en.shtml, is a XHTML, and therefor has the
XHTML 1.0 doctype.  However if I were to change the doctype to a transition HTML
4.0 doctype the page renders corrects, can be seen here:
http://technologyreview.org:8080/index.shtml.  The Javascript used in both
examples is externally linked and does not suffer from forgetting <[![CDATA and
all is valid XHTML.

Reproducible: Always
Steps to Reproduce:
1.Go to the web page
2.See that it does not rendered

Actual Results:  You would see the page rendered without the Javascript enhancement

Expected Results:  Go here for expected results:
http://technologyreview.org:8080/index.shtml

Comment 1

[Boris Zbarsky [:bzbarsky]]

The page renders fine with a 4.0 Transitional doctype because that doctype 
triggers "quirks" mode.  An XHTML doctype triggers "standards" mode.  In 
standards mode, we do our best to follow the CSS, HTML, and DOM specs 
(in "quirks" mode we violate these specs at times to be compatible with old 
pages).

In particular, the CSS standard requires that all lengths have units.  so "5" 
is not a valid length value, whereas "5px" is.

The js in question does things like:

  maxp=scrtext.offsetHeight?scrtext.offsetHeight:scrtext.style.pixelHeight;

  if (sp<-maxp) sp=0;
  sp--;

  scrtext.style.top=sp;

note that "sp" is a number, so not a valid CSS length.  So the setting of 
style.top fails in "standards" mode.

Marking invalid.  Mike Petnuch, please reopen if you fix the problems with your 
JavaScript and things still don't work.

Comment 2

[Phil Schwartau]

Marking Verified -