WoWInterface - reset "Unit

Hi. I create addon for tracking eclipse on my moonkin this addon display 4 states :

1: on Solar eclipse: "Eclipse Wrath"
2: on Lunar eclipse: "Eclipse Starfire"
3: after Lunar eclipse: "Starfire"
4: after Solar eclipse: "Wrath"

I don't no how to make reset all states to state "1" after 30 second. mayby anyone can help me ?

eclips.lua

Code:

y=1

function Eclips_OnEvent(event)

        if (event == "UNIT_AURA") then

                name, rank = UnitAura("player", "Eclipse (Solar)");

                name2, rank = UnitAura("player", "Eclipse (Lunar)");

                if (name=="Eclipse (Solar)") then

                        EclipsFrame:AddMessage("Eclipse\nWrath!", 0, 1, 0, 1, 4);

                        y=1

                elseif((y==1) and  not(name == "Eclipse (Solar)") and not(name2=="Eclipse (Lunar)")) then

                        EclipsFrame:AddMessage("\nWrath!", 0, 1, 0, 1, 4);

                elseif (name2=="Eclipse (Lunar)") then

                        EclipsFrame:AddMessage("Eclipse\nStarfire!", 0, 0, 1, 1, 4);

                        y=2

                elseif((y==2) and  not(name == "Eclipse (Solar)") and not(name2=="Eclipse (Lunar)")) then

                        EclipsFrame:AddMessage("\nStarfire!", 0, 0, 1, 1, 4);

                return;

                end

        end

end

Eclips.xml

Code:

<Ui xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://www.blizzard.com/wow/ui/">

        <Script file="Eclips.lua" />

        <MessageFrame name="EclipsFrame" displayDuration="" insertMode="TOP" parent="UIParent" frameStrata="LOW" toplevel="true">

                <Size>

                        <AbsDimension x="200" y="40"/>

                </Size>

        <Anchors>

                <Anchor point="CENTER">

                        <Offset>

                                <AbsDimension x="145" y="-25"/>

                        </Offset>

                </Anchor>

        </Anchors>

        <Scripts>

                <OnLoad>

                        this:RegisterEvent("UNIT_AURA");

                </OnLoad>

                <OnEvent>

                        Eclips_OnEvent(event);

                </OnEvent>

        </Scripts>

                <FontString inherits="SystemFont_OutlineThick_Huge4" justifyH="CENTER"/>

        </MessageFrame>

</Ui>

P.S sorry for my bad english.