show/hide layers onLoad

geotso

Hi

I'm looking for a javascript with the following operation:

if history.length <=2
show "layer1" and hide "layer2"

else
hide "layer1' and show "layer2"

Notes
"layer1" and "layer2" are the IDs of two layers
this should be in a function, in order to call it with onLoad

Can someone help me please?

--
Merlin dying to the Lady of the Lake:
"We lived our lives with passion and devotion"
--
Please remove slashes to contact me

Jul 23 '05 #1

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4001

Stephen Chalmers

geotso <kata/ye/xi@yahoo.gr> wrote in message news
:cs**********@u senet.otenet.gr ...

Hi

I'm looking for a javascript with the following operation:

if history.length <=2
show "layer1" and hide "layer2"

else
hide "layer1' and show "layer2"

Notes
"layer1" and "layer2" are the IDs of two layers
this should be in a function, in order to call it with onLoad

Can someone help me please?

history.length is treated inconsistently across browsers.

Assuming both layers are initially styled as hidden.

Call with: <body onload='showLay er("layer1","la yer2")'>

function showLayer(L1, L2)
{
var ref=null;
if( document.getEle mentById && (ref=document.g et
ElementById(his tory.length<=2 ? L1 : L2)) )
ref.style.visib ility='visible' ;
}

--
S.C.

Jul 23 '05 #2

geotso

Stephen Chalmers wrote:

geotso <kata/ye/xi@yahoo.gr> wrote in message news
cs**********@us enet.otenet.gr. ..
Hi

I'm looking for a javascript with the following operation:

if history.length <=2
show "layer1" and hide "layer2"

else
hide "layer1' and show "layer2"

Notes
"layer1" and "layer2" are the IDs of two layers
this should be in a function, in order to call it with onLoad

Can someone help me please?

history.length is treated inconsistently across browsers.

Assuming both layers are initially styled as hidden.

Call with: <body onload='showLay er("layer1","la yer2")'>

function showLayer(L1, L2)
{
var ref=null;
if( document.getEle mentById && (ref=document.g et
ElementById(his tory.length<=2 ? L1 : L2)) )
ref.style.visib ility='visible' ;
}

It works like a charm!

(a small change, just for the records:
I've used style="display: none" and then .style.display= ''; instead of
style="visibili ty:hidden" and .style.visibili ty='visible'.
This way, I prevent browser's window from displaying the vertical scrollbar
if anyone of the layers is too short to need it).

Thank you very much!!

Jul 23 '05 #3

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