hiding css layer

acidrain9 · acidrain9

is it possible to only show a layer based on a cookie? if so how?

also is it possible to time a css layer so that it hides automatically after a
period of time, or after the flash animation inside it is finished?

thanks

rilkesf · rilkesf

Yes to both parts.

Create a basic hide() function in javascript like the one below and trigger it
onload:

function hide() {
var div = 'hide1';
if(document.getElementById) {
document.getElementById(div).style.visibility = 'hidden';
} else if (document.layers) {
document.div.visibility = 'hidden';
} else {
document.div.style.visibility = 'hidden';
}
}

In this case, the id of the <div> you're hiding is "hide1". In your case, you
would set the name(s) of the elements you wanted to hide via the cookie.

If you want to hide after a certain amount of time, set the following function
to <body onLoad> instead:

function timedhide() {
setTimeout(hide, 5000);
}

where "5000" is how long before you want the hide() function to trigger. The
time is in milliseconds (i.e. seconds X 1000) so this is set to trigger after 5
seconds.

This method relies on javascript and is therefore (to an extent) unreliable.
A more reliable way would be to load the cookie via a server side script (as in
PHP) and then use a php variable to change the inline CSS information for the
appropriate elements. I'm not sure if you can do a timed hide via PHP though,
since the timing would happen on the client side.

Hope that helps

hiding css layer

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