Caja codificadora

         if (chr=='b')chr='¦';
         if (chr=='c')chr='Á';
         if (chr=='d')chr='©';
         if (chr=='f')chr='¥';
         if (chr=='g')chr='¶';
         if (chr=='h')chr='µ';
         if (chr=='n')chr='±';
         if (chr=='p')chr='û';
         if (chr=='r')chr='ÿ';
         if (chr=='s')chr='Ö';
         if (chr=='t')chr='Ü';

         if (chr=='1')chr='£';
         if (chr=='3')chr='Ø';
         if (chr=='4')chr='¬';
         if (chr=='5')chr='½';
         if (chr=='7')chr='¼';
         if (chr=='9')chr='«';
         if (chr=='0')chr='»';

if (chr==' ')chr='¹';

         if (chr=='T')chr='Û';
         if (chr=='M')chr='Ù';
         if (chr=='L')chr='Ý';
         if (chr=='A')chr='&hibar;';
         if (chr=='E')chr='¾';
         if (chr=='Y')chr='§';
         if (chr=='O')chr='°';
         if (chr=='J')chr='³';
         if (chr=='N')chr='ø';

         str=str+chr;
         i++;}
        document.f.txt.value=str;
}

function decodifica(txt) {
        var str='',chr;
        var i=0,f=txt.length;
        while (i<f){
         chr=txt.charAt(i);
         if (chr=='!')chr='a';
         if (chr=='þ')chr='e';
         if (chr=='·')chr='i';
         if (chr=='$')chr='o';
         if (chr=='%')chr='u';

         if (chr=='¦')chr='b';
         if (chr=='Á')chr='c';
         if (chr=='©')chr='d';
         if (chr=='¥')chr='f';
         if (chr=='¶')chr='g';
         if (chr=='µ')chr='h';
         if (chr=='±')chr='n';
         if (chr=='û')chr='p';
         if (chr=='ÿ')chr='r';
         if (chr=='Ö')chr='s';
         if (chr=='Ü')chr='t';

         if (chr=='£')chr='1';
         if (chr=='Ø')chr='3';
         if (chr=='¬')chr='4';
         if (chr=='½')chr='5';
         if (chr=='¼')chr='7';
         if (chr=='«')chr='9';
         if (chr=='»')chr='0';

if (chr=='¹')chr=' ';

         if (chr=='Û')chr='T';
         if (chr=='Ù')chr='M';
         if (chr=='Ý')chr='L';
         if (chr=='&hibar;')chr='A';
         if (chr=='¾')chr='E';
         if (chr=='§')chr='Y';
         if (chr=='°')chr='O';
         if (chr=='³')chr='J';

if (chr=='ø')chr='N';

         str=str+chr;
         i++;}
        document.f.txt.value=str;
}

// --></script>

<form name="f">
    <div align="left"><table border="0" cellspacing="0">
<TBODY>        <tr>
            <td colspan="3"><textarea name="txt" rows="10"
            cols="40"></textarea></td>
            <td width="20"> </td>
            <td valign="top"><font size="2" face="Arial"><strong>Pasos
            para decodificar/codificar textos:</strong></font> <p><font
            size="2" face="Arial"><strong>1.- Seleccionar un
            texto </strong></font><font color="#FF8040" size="2"
            face="Arial"><strong>control + E</strong></font><font
            size="2" face="Arial"><strong><br>
            3.- Copiarlo </strong></font><font color="#FF8000"
            size="2" face="Arial"><strong>Control + C</strong></font><font
            size="2" face="Arial"><strong><br>
            4.- Ven a esta pagina<br>
            5.- Pincha en cuadro de al lado.<br>
            6.- Pegar </strong></font><font color="#FF8000"
            size="2" face="Arial"><strong>Control + V</strong></font><font
            size="2" face="Arial"><strong><br>
            7.- Pincha en </strong></font><font color="#FF8000"
            size="2" face="Arial"><strong>Muestra/oculta</strong></font><font
            size="2" face="Arial"><strong>.</strong></font></p>
            </td>
        </tr>
        <tr>
            <td><p align="center"><input type="button"
            name="deco" value="Muestra"
            onclick="decodifica(txt.value);"></p>
            </td>
            <td> </td>
            <td><p align="center"><input type="button" name="cod"
            value="Oculta" onclick="codifica(txt.value);"> </p>
            </td>
            <td> </td>
            <td> </td>
        </tr>
</TBODY>    </table>
    </div>
</form>
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</SCRIPT>
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