Cookie problem - Code worked on one server, but not on another

[magicmoose]

Hi, I have a piece of code which I want to use to allow the user to select a stylesheet.  I had it working fine on another site, but I have just added the same code to a new site I am making and it's not working.

 

At the top of my page I have:

<?

 

 

  if (isset($_COOKIE["selectedStyle"])) // has the cookie already been set

  {

  $style=$_COOKIE["selectedStyle"];

  }else{

$style = 0;

}

 

  if (isset($_POST["changeStyle"]))  // changing the style

  {

  $style=$_POST["changeStyle"];

  }

 

  setcookie("selectedStyle",$style); // update or create the cookie

?>

 

In the head tags I have this:

 

<LINK REL="stylesheet" HREF="stylesheet<?= $style; ?>.css">

 

And in the body of the page I have the following form:

 

<form method="post" action="<?= $_SERVER["PHP_SELF"];?>">

    <P class="general">Normal<input type="radio" name="changeStyle" value="0" checked><BR></P>

    <P class="general">Text Only (No Flash Content)<input type="radio" name="changeStyle" value="1"><BR></P>

   

<INPUT type="submit" name="submitstyle" value="Change"><BR>

  </form>

 

Can anyone see any problems with it?

If not, what settings do I need to get changed?

I can post the settings from the php.php files if needed.

 

Thanks.

[AndyB]

<?= requires short tags to be on.  Better practice would be <?php echo

[magicmoose]

Didn't know that, thanks. 

I forgot to mention, after the form is submitted, the stylesheet DOES change, but only for one page.  It goes back to the default value afterwards, whether I load up a different page, or the same one again.

I am having a similar problem with sessions, it just seems that nothing will pass from one page to another.

I have tried just putting a random value in both a cookie and session variable and echoing it on another page, but nothing is displayed.