currentCookie = getCookie("display_order");

/**
 * Sets a Cookie with the given name and value.
 *
 * name       Name of the cookie
 * value      Value of the cookie
 * [expires]  Expiration date of the cookie (default: end of current session)
 * [path]     Path where the cookie is valid (default: path of calling document)
 * [domain]   Domain where the cookie is valid
 *              (default: domain of calling document)
 * [secure]   Boolean value indicating if the cookie transmission requires a
 *              secure transmission
 */
function setCookie()
{
    var value;
    //alert('currentCookie is ' + currentCookie);
    if (currentCookie == "" || currentCookie == "DESC") {
        value = "ASC";
    } else {
        value = "DESC";
    }
    //alert('setCookie called\nvalue is ' + value);
    //expires = new Date("1 January 2010");
    expires = "";
    path = "/";
    domain = "sunaonline.com";
    secure = "";
    document.cookie= "display_order=" + escape(value) +
        ((expires) ? "; expires=" + expires.toGMTString() : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
    currentCookie = value;
    window.location.reload(true);
}

/**
 * Gets the value of the specified cookie.
 *
 * name  Name of the desired cookie.
 *
 * Returns a string containing value of specified cookie,
 *   or null if cookie does not exist.
 */
function getCookie(name)
{
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1)
    {
        begin = dc.indexOf(prefix);
        if (begin != 0) return "";
    }
    else
    {
        begin += 2;
    }
    var end = document.cookie.indexOf(";", begin);
    if (end == -1)
    {
        end = dc.length;
    }
    return unescape(dc.substring(begin + prefix.length, end));
}

/**
 * Deletes the specified cookie.
 *
 * name      name of the cookie
 * [path]    path of the cookie (must be same as path used to create cookie)
 * [domain]  domain of the cookie (must be same as domain used to create cookie)
 */
function deleteCookie(name, path, domain)
{
    if (getCookie(name))
    {
        document.cookie = name + "=" + 
            ((path) ? "; path=" + path : "") +
            ((domain) ? "; domain=" + domain : "") +
            "; expires=Thu, 01-Jan-70 00:00:01 GMT";
    }
    document.location.href = '/kininaru.php';
}

function remove( prod_id, offset ) {
    regex = new RegExp(prod_id, "g");
    regex2 = /:+$/;
    regex3 = /^:+/;
    currentCookie = currentCookie.replace(regex, "");
    currentCookie = currentCookie.replace(/::::/g, "::");
    currentCookie = currentCookie.replace(regex2, "");
    currentCookie = currentCookie.replace(regex3, "");
    expires = new Date("1 January 2010");
    resetCookie('kininaru', currentCookie, expires, "/");
    document.location.href = '/kininaru.php?offset=' + offset;
}

function resetCookie(name, value, expires, path, domain, secure)
{
    expires = new Date("1 January 2010");
    document.cookie= name + "=" + escape(value) +
        ((expires) ? "; expires=" + expires.toGMTString() : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
}