148607 - dol2day.de - Backgroundimage not showen in Mozilla! A L L other Browsers (not based on Gecko) shot it.

Status: VERIFIED FIXED

(Tech Evangelism Graveyard :: German, defect)

Description

[Ian Holton]

The German-based Site Democracy Online Today, also know as Dol2Day, has a
background image on its firstpage, where you login. 
In Internet Explorer (all Versions starting from 4), Opera (newest, other not
tested) and KHTML based show it. Gecko based Browsers, i.e. Mozilla (tested from
0.9.8 - 1.0 RC3) d o  n o t show it!
This seems to be the code in question:
"<div id="BackLayer" STYLE="position:absolute; pagey:0; z-index:-1;">
  <table width="760" border="0" height="500">
    <tr>
      <td><img src="start/hintergrund.jpg" width="760" height="500"></td>
    </tr>
  </table>
</div>"

Comment 1

[Jacek Piskozub]

The page has the following script:

  if (document.layers)  {
     ns = 1; ie = 0;
  } else {
     ns = 0; ie = 1;
  }

  function SetToCenter() {
  if (ns) {
            NewX = Math.round((window.innerWidth-760)/2);
            if (NewX < 0) NewX = 0;
            document.BackLayer.left = NewX;
            document.Layer.left = NewX;
            }
  if (ie) {
            NewX = Math.round((document.all.Startseite.offsetWidth-760)/2)-10;
            if (NewX < 0) NewX = 0;
            BackLayer.style.left = NewX;
            Layer.style.left = NewX;
            }
  }

It is wrong as it thinks only document.layers or document.all are possible.
The right script would be:

  if (document.getElementById)  {
     ns = 0; ie = 0; moz = 1;
  } else if (document.all) {
     ns = 0; ie = 1; moz = 0;
  } else if (document.layers) {
     ns = 1; ie = 0; moz = 0;
  }

  function SetToCenter() {
  if (ns) {
            NewX = Math.round((window.innerWidth-760)/2);
            if (NewX < 0) NewX = 0;
            document.BackLayer.left = NewX;
            document.Layer.left = NewX;
            }
  if (ie) {
            NewX = Math.round((document.all.Startseite.offsetWidth-760)/2)-10;
            if (NewX < 0) NewX = 0;
            BackLayer.style.left = NewX;
            Layer.style.left = NewX;
            }
  if (moz) {
            NewX =
Math.round((document.getElementById("Startseite").offsetWidth-760)/2)-10;
            if (NewX < 0) NewX = 0;
            document.getElementById("BackLayer").style.left = NewX;
            document.getElementById("Layer").style.left = NewX;
            }
  }

but it still does not work :-(

Anyway, confirming and reassigning to the right component (-> Europe:West)

Comment 2

[Jacek Piskozub]

Actually this is a problem with "z-index:-1" and this is a DUP of a known
problem. It seems it is a fault of Mozilla, after all :-(

*** This bug has been marked as a duplicate of 78087 ***

Comment 3

[Jacek Piskozub]

Attachment: A version of the page that works with Mozilla

"z-index: -1" changed to "z-index: 0" and added "z-index: 1"

Comment 4

[Boris Zbarsky [:bzbarsky]]

Reopening, since the "known problem" is almost certainly INVALID or WONTFIX 
(invalid in standards, wontfix in quirks).

Comment 5

[Jacek Piskozub]

Boris, mark as WONTFIX bug 78087, not this. This is certainly a dup.

*** This bug has been marked as a duplicate of 78087 ***

Comment 6

[Boris Zbarsky [:bzbarsky]]

The point is that if that bug is wontfix then this bug should be evangelized.  
Which is why I would prefer to keep it open.

Marking dependency, however, so that if that one is ever "fixed" (very 
unlikely) this one can be resolved.

Comment 7

[Jacek Piskozub]

Boris: I only wonder why you treated differently a similar bug 116021. You duped
it yourself against bug 78087. This does not seem very consistent :-(

Luckily this bug is not my in Evangelism precint :-) 
Removing myself from the CC: list.

Comment 8

[Kai Lahmann (is there, where MNG is)]

move...

Comment 9

[Anne (:annevk)]

Boris, now that the other bug is going to be fixed once, thanks to changes in
CSS 2.1, this should be a duplicate of that bug and no longer depending on bug
78087, right?

Comment 10

[Frank Wein [:mcsmurf]]

no <div ...> anymore on that page, the background image is now displayed with a
current Mozilla CVS trunk build.
-->fixed