var cText = ''

cText += '            <table width = 100%> '
cText += '            <tr>'
cText += '              <td class = "subfooter">'
cText += '                <a href="../index.php">Página'
cText += '                principal</a>'
cText += '                </td>'
cText += '            </tr>'
cText += '            </table>'

document.write(cText)