jQuery Ajax and PHP sessions problem

[AntoLeNice]

Hi there,

 

I am currently making a website where the background can be switched ( http://www.claudettefleuriste.com/new ).

 

When we click on a colored square, the background changes. But the new session isn't set. Here's my code (php with a application/x-javascript header):

 

SCRIPTS.PHP

 

 

$(".orange").click(function(){
$("body").css("background-image", "url(images/bg2.jpg)");
$.ajax({
	url  : "js/session.php",
	type : "get",
	data : "couleur=orange",
	dataType : "html",
	success : function(){
		alert("bg orange");
	},
	error : function(xhr,code){
		alert(code);
	}
})	
});

 

 

 

<?php
if(isset($_SESSION['bg'])) {
	if($_SESSION['bg'] == 'rose') {
		echo '$("body").css("background-image", "url(images/bg1.jpg)");';
	}
	else if($_SESSION['bg'] == 'orange') {
		echo '$("body").css("background-image", "url(images/bg2.jpg)");';
		echo 'alert("bg est orange")';
	}
	else if($_SESSION['bg'] == 'mauve') {
		echo '$("body").css("background-image", "url(images/bg3.jpg)");';
	}
}  else {
	echo '$("body").css("background-image", "url(images/bg1.jpg)");';
	echo 'alert("no bg")';
}?>

 

 

SESSION.PHP

 

<?php
if(isset($_GET['couleur'])) {
$_SESSION['bg'] = $_GET['couleur'];
}
?>

 

 

My ajax script works (returns success), Firebug gives me: session.php?couleur=orange . I don't understand, session_start() is activated.

Can anyone help me ?

 

Thanks, Anto