Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Activate only when a face-up Synchro Monster you control is selected as an attack target. Negate the attack and destroy 1 monster your opponent controls.
--シンクロン・リフレクト
--Synchro Deflector
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_DESTROY)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_BE_BATTLE_TARGET)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	local tc=eg:GetFirst()
	return tc:IsControler(tp) and tc:IsFaceup() and tc:IsType(TYPE_SYNCHRO)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(1-tp) end
	if chk==0 then return Duel.IsExistingTarget(nil,tp,0,LOCATION_MZONE,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.SelectTarget(tp,nil,tp,0,LOCATION_MZONE,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,1,tp,0)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if Duel.NegateAttack() and tc:IsRelateToEffect(e) and tc:IsControler(1-tp) then
		Duel.Destroy(tc,REASON_EFFECT)
	end
end