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- <!DOCTYPE html>
- <!--
- Práctica 60: Aplicar una caducidad de 3 minutos a la cookie anterior.
- -->
- <html>
- <head>
- <meta charset="UTF-8">
- <script language="javascript">
- function getexpirydate( nodays)
- {
- var UTCstring;
- Today = new Date();
- nomilli=Date.parse(Today);
- Today.setTime(nomilli+nodays*24*60*60*1000);
- UTCstring = Today.toUTCString();
- return UTCstring;
- }
- function getcookie(cookiename)
- {
- var cookiestring=""+document.cookie;
- var index1=cookiestring.indexOf(cookiename);
- if (index1==-1 || cookiename=="") return "";
- var index2=cookiestring.indexOf(';',index1);
- if (index2==-1) index2=cookiestring.length;
- return unescape(cookiestring.substring(index1+cookiename.length+1,index2));
- }
- function setcookie(name,value)
- {
- cookiestring=name+"="+escape(value);
- document.cookie=cookiestring;
- if(!getcookie(name)){
- return false;
- }
- else{
- return true;
- }
- }
- </script>
- </head>
- <body>
- <script language="javascript">
- cont= getcookie("contador");
- if(isNaN(cont)){
- y=setcookie('contador',0,1);
- cont=0;
- }
- cont++;
- document.write("Contador: "+cont);
- y=setcookie('contador',cont,1);
- </script>
- </body>
- </html>
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