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function getCookie (name) {
    var prefix = name + "="
    var start = document.cookie.indexOf(prefix)

    if (start == -1) return ""

    var end = document.cookie.indexOf(";", start + prefix.length)

    if (end == -1) end = document.cookie.length

    var value = document.cookie.substring(start + prefix.length, end)

    return unescape(value)
}

function setCookie (name, value, path, expiration) {
    var newCookie, d

    newCookie = name + "=" + escape(value) +
                ((path) ? ";path=" + path : "")
    if (expiration) {
        d = new Date()
        d.setYear (d.getYear() + 1)
        newCookie = newCookie + ";expires=" + d.toGMTString()
    }
    document.cookie = newCookie
}

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