/**
* Crée un cookie
*
* @param String name l'identifiant du cookie
* @param String value la valeur du cookie
* @param int days la durée du cookie en jour
*/

function createCookie(name, value, days)
{
if (days) {
var date = new Date();
date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
var expires = "; expires=" + date.toGMTString();

} else var expires = "";
document.cookie = name + "=" + value + expires + "; path=/";
}
/**
* Lit un cookie
*
* @param String name l'identifiant du cookie
* @return Mixed retourne la valeur du cookie ou null
*/
function readCookie(name)
{
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i = 0; i < ca.length; i++) {
var c = ca[i];
while (c.charAt(0) == ' ') c = c.substring(1, c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
}
return null;
}
/**
* Supprime un cookie
*
* @param String name l'identifiant du cookie
*/
function eraseCookie(name)
{
createCookie(name, "", -1);
}



function checkImage(imageName, checkInList)
{
    var imagePath = 'images/';
    var image = new Image();

    image.onload = function() {
        $('body').css('background-image', 'url(' + imagePath + imageName + ')');
        $('body.shadowBox').css({"background-image":"none"});
        createCookie('JBackground', imageName, 365);
    };
    image.src = imagePath + imageName;
}


$(function()
{
// Si on utilise les cookies, on va lire celui-ci
// pour récupérer le background choisi
var cookie = readCookie('JBackground');

if (cookie != null && cookie != '')
checkImage(cookie, false);

$('body.shadowBox').css({"background-image": "none"});

// Ajout du comportement à la selection d'un background
$('#background-list span').click(function() {
checkImage($(this).attr('image'), false);
});
});