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<%@ page contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
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<%
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if(session.getAttribute("pointer_no") == null || session.getAttribute("pointer_no").equals("")){
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%>
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<script>
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alert("Es necesario iniciar sesión.")
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location.href="/point/"
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</script>
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<%
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}else{
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%>
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