[Javascript] Positioning in IE

[Matt Barton]

Oh, I see.  I clearly got too excited when I read ...

>                  glava.style.posLeft="500px"
>Is the fastest coding syntax for dynamical positioning

... I thought you were going to tell us something interesting about the
'style.posLeft' attribute, rather than something obvious about document.all
or document.getElementById.

Ho-hum.

Matt

----- Original Message ----- 
From: "Troy III Ajnej" <trojani2000 at hotmail.com>
To: <javascript at LaTech.edu>
Sent: Tuesday, July 27, 2004 3:34 PM
Subject: Re: [Javascript] Positioning in IE


>
>
> The call: document.all
> is never to be used inside a loop, it will sllow the script from few to
> hundred and thousand times, depending on how complex the page is (the
number
> of doc objects contained) every time you call  document.all it iterates
all
> the objects. Than if you state get element by ID it scrolls again through
> all the elements containing id, than, it has to compare if one of them
yelds
> true to give the permission to ecxecute, if after this you have given f.i.
> pixelLeft than it has to do some math to decide where to put the element,
> but if you instruct posLeft, there is no math it assumes zero at left and
> simply adds the new value. Try some of variants you know that will move
the
> object from left to right pixel by pixel in some old computer and see for
> your self.
> I use integer +px string with posLeft or Right/\ Top when increasingly
> possitioning the object.
> If I recall correctly, when stating pixelLeft, the browser looks up
previous
> state than adds positive or negative value to the existing one. And this
> means more processing. (but of course, with the P4 2.66 or 3.2 GHz you
will
> hardly notice the difference.)
>
>
>
>
> >From: "Matt Barton" <javascript at mattbarton.org>
> >Reply-To: "[JavaScript List]" <javascript at LaTech.edu>
> >To: "[JavaScript List]" <javascript at LaTech.edu>
> >Subject: Re: [Javascript] Positioning in IE
> >Date: Tue, 27 Jul 2004 09:15:21 +0100
> >
> >----- Original Message -----
> >From: "Troy III Ajnej" <trojani2000 at hotmail.com>
> > >
> > >                   glava.style.posLeft="500px"
> > >
> > > Is the fastest coding syntax for dynamical positioning. Specially when
> > > moving objects pixel by pixel.
> > > Feel free to ask Why, Hakan.
> >
> >Morning,
> >
> >Just wondering what the explanation behind this is: I've a few pieces of
> >code in my intranet app which use dynamic positioning, moving objects
pixel
> >by pixel, so anything that could help me understand how to do this more
> >efficiently would be more than welcome.
> >
> >In anticipation,
> >Matt.
> >
> >_______________________________________________
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> >Javascript at LaTech.edu
> >https://lists.LaTech.edu/mailman/listinfo/javascript
>
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