Function PQR_SpellAvailable(SpellID)
    local GCDSpell = PQR_GCDSpell()

    if GetSpellCooldown ~= nil then
        local GCDstartTime, GCDduration = GetSpellCooldown(GCDSpell)
        local startTime, duration, enabled = GetSpellCooldown(SpellID)
        local usableName, _, _, spellCost = GetSpellInfo(SpellID)
        local spellUsable = nil
        local _, build = GetBuildInfo()
        If tonumber(build) <= 12340 Then
            spellUsable = IsUsableSpell(usableName)
        else
            spellUsable = IsUsableSpell(SpellID)
        end

        pq_SpellAvailable = "false"

        if startTime ~= nil and GCDstartTime ~= nil then
            local timeLeft = startTime + duration - GetTime()
            local GCDtimeLeft = GCDstartTime + GCDduration - GetTime()

            If GCDtimeLeft <= 0 Then
                If timeLeft <= 0.25 Then
                    if spellUsable ~= nil then
                        pq_SpellAvailable = "true"
                    end
                end
            else
                If timeLeft <= GCDtimeLeft + 0.25 Then
                    if spellUsable ~= nil then
                        pq_SpellAvailable = "true"
                    end
                end
            end
        else
            pq_SpellAvailable = "false"
        end
    else
        pq_SpellAvailable = "false"
    end

    if pq_SpellAvailable == nil or pq_SpellAvailable == "false" then
        return false
    else
        return true
    end
end