layer switching

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Hi all,
Im having some troubles with layers on a site im developing.
I have two layers one has an image of an artists palette on it and each blob
of paint is a link to a page on the site. That uses an image map and hrefs.

The second layer is where the page will appear. So when a user clicks a link
on the palette image, a new 'window' will appear over the palette to show
the content. The image of the palette will be slightly faded out to
highlight the content.

The trouble I'm having is switching between the layers when a link is
clicked. The image map links dont seem to show the content window or even be

Im not sure if Im going about this the right way though because I also need
to be able to close the content window to show the menu again. If anyone has
any ideas on how to achieve this or any pointers then I would be happy to
know them coz I'm stumped.

The code for the page so far is below and the I know this code may seem a
bit of a mess but I've
been trying everything so its a little un-organised. I've used the z-Index
and visibility alone and together and no sucess so far.

If you need any further info then let me know.
Thanks in advance for your help
Scroll down for the code

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<title>Document 1</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link rel="stylesheet" type="text/css" href="main.css"/ >
<script language="javascript" type="text/javascript">
function openwindow(elm)
 window.document.getElementById("content").style.zIndex = "0";
 window.document.getElementById("palette").style.zIndex = "0";
 window.document.getElementById(elm).style.zIndex = "100";

<body topmargin="0" marginwidth="0" marginheight="0"

<table width="579" height="582"  border="0" cellpadding="0" cellspacing="0">
     <div id="palette" class="palette" name="palette" style="visibility:
hidden; z-Index: 0">
          <img src="images/backgroundpalette.png" border="0"
usemap="#paletteMap" start="fileopen" target="#frame">
        <div name="content" id="content" class="content" style="visibility:
hidden; z-Index: 0">
         <iframe src="home.htm" frameborder="0" width="579" height="582"

<map name="paletteMap" id="paletteMap">
  <area shape="circle" coords="478,177,46" href="home.htm" target="#frame"
alt="Homepage" onClick="javascript:openwindow('content')">
  <area shape="circle" coords="183,281,50" href="gallery.htm"
target="#frame" alt="Gallery" onClick="javascript:openwindow('content')">
  <area shape="circle" coords="311,489,49" href="links.htm" target="#frame"
alt="Links" onClick="javascript:openwindow('content')">
  <area shape="circle" coords="323,160,50" href="about.htm" target="#frame"
alt="About Me" onClick="javascript:openwindow('content'))">
  <area shape="circle" coords="150,389,49" href="events.htm" target="#frame"
alt="Events" onClick="javascript:openwindow('content')">
  <area shape="circle" coords="184,502,56" href="contact.htm"
target="#frame" alt="Contact Me" onClick="javascript:openwindow('content')">

Re: layer switching


Quoted text here. Click to load it

Why are you posting to alt.html  There is no concept of "layers" in html
or even in CSS.  So this is not the appropriate group to be posting in.
Since you seem to be using javascript to create the effect you seem to
be wanting perhaps you should post in a javascript group.

It does strike me as odd that you would want to make your page unusable
to a good percentage of your visitors who won't have javascript enabled.

Re: layer switching

Quoted text here. Click to load it

Right - Evite does some very nasty Ajax that makes filling out a form
impossible.  You have to CLICK on the form element to make it active,
and if you hit tab you are foobar and have to start from scratch.

Adrienne Boswell at Home
Arbpen Web Site Design Services
Please respond to the group so others can share

Re: layer switching

Quoted text here. Click to load it

just to be an old so and so - what percentage of visitors have javascript

Re: layer switching

the red dot wrote:

Quoted text here. Click to load it

Hard to say...  10%?  Scroll down:

Relying on JavaScript is like turning off your web server for nearly a
month each year.

   -Motorcycles defy gravity; cars just suck

Re: layer switching

To further the education of mankind, "Beauregard T. Shagnasty"

Quoted text here. Click to load it

And not using javascript is equivalent to crippling many very useful
functions otherwise available.

"Relying" is the keyword here.  If the page doesn't work correctly with
javascript disabled, it either shouldn't work at all or should present a
simplified substitute version to the non-j/s user.

Infinity has its limits.

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