[thelist] Rollover code from evolt

Tony Grimes algrimes at acs.ucalgary.ca
Tue Mar 6 03:12:16 CST 2001

     Which code do you use most of the time? I can hack Perl, so
JavaScript shouldn't be hard to learn; I've just never bothered before
(I'm usually a project manager). This code will only be for the odd site
that I do start-to-finish, so complexity doesn't really matter; as long as
it's solid.


On Tue, 6 Mar 2001, Anthony Baratta wrote:

> At 12:45 AM 3/6/2001, you wrote:
> >      I don't want to use Dreamweaver rollover code anymore and I remember
> >this code that Anthony posted a LOOONG time ago (address may wrap):
> ohmygwad - someone actually found that olde musty archive....LOL
> >Two questions (BTW, I'm a JavaScript dunderhead):
> >
> >1) Is this code still current? IOW, is it dated, now that IE 5 and NN6 are
> >out? I'm looking for general cross browser/platform compatibility (4.0 is
> >low enough for me).
> IE 5.0 should be fine. Haven't tested it with 6.0. I don't even remember 
> which sites I've used that code snippet at. If I can rustle up some, I'll 
> let you know.
> >Does the code preload images? I remember a long discussion about
> >preloading regarding this (or related) code, but can't find the
> >original thread (I don't think I'd understand it anyway).
> It should. The function "F_loadRollover" is called with "onLoad" event for 
> the target image. This is one of the weaknesses of this script. You have to 
> not only use the onMouseOver, onMouseOut events - you also have to use the 
> onLoad event, for each Image. This can create a lot of HTML clutter. The 
> "F_loadRollover" also builds a "public array" of all the roll over images 
> for use by "F_roll". Not sure of the memory hit taken by this on a page 
> with a ton of roll overs.
> But on the other hand, you are embedded the logic right into the target 
> images. This might be "better" from a construction stand point.
> Hope this helps.
> ---
> Anthony Baratta
> President
> Keyboard Jockeys
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