Foros del Web - Ver Mensaje Individual

bet · #4 (**permalink**) 14/03/2002, 07:39

Código:

function valDia(oTxt){
var bOk = false;
var nDia = parseInt(oTxt.value.substr(0, 2), 10);
bOk = bOk || ((nDia &gt;= 1) &amp;&amp; (nDia &lt;= finMes(oTxt)));
return bOk;
}

function valMes(oTxt){
var bOk = false;
var nMes = parseInt(oTxt.value.substr(3, 2), 10);
var nAno = oTxt.value.substr(6);

bOk = bOk || ((nMes &gt;= 1) &amp;&amp; (nMes &lt;= 12));
if (nAno == 2002 &amp; nMes &lt;6){ bOk=false}
return bOk;
}

function valAno(oTxt){
var bOk = true;
var nAno = oTxt.value.substr(6);
bOk = bOk &amp;&amp; ((nAno.length == 2) || (nAno.length == 4));
if (bOk){
for (var i = 0; i &lt; nAno.length; i++){
bOk = bOk &amp;&amp; esDigito(nAno.charAt(i));
}
}

if (nAno &lt; 2002){ bOk = false;}
return bOk;
}

function valFecha(oTxt){
var bOk = true;
if (oTxt.value != &quot;&quot;){
bOk = bOk &amp;&amp; (valAno(oTxt));
bOk = bOk &amp;&amp; (valMes(oTxt));
bOk = bOk &amp;&amp; (valDia(oTxt));
bOk = bOk &amp;&amp; (valSep(oTxt));
if (!bOk){
alert(&quot;Fecha inválida&quot;);
oTxt.value = &quot;&quot;;
oTxt.focus();
}
}
}
&lt;/script&gt;
&lt;/head&gt;

&lt;body&gt;

&lt;form name=&quot;f1&quot; onSubmit=&quot;return checkForm(this);&quot;&gt;
&lt;p&gt; Tarjeta de credito: &lt;input type=text name=&quot;tarjeta&quot; size=16 maxlength=16 onKeyPress=&quot;return acceptNum(event)&quot;&gt;&lt;/p&gt;
&lt;p&gt; Fecha (dd/mm/aaaa): &lt;input type=&quot;text&quot; size=&quot;10&quot; maxlength=&quot;10&quot; name=&quot;fec&quot; onblur=&quot;valFecha(this)&quot;&gt;&lt;/p&gt;

&lt;p&gt; Nombre: &lt;input type=&quot;text&quot; size=&quot;10&quot; name=&quot;nombre&quot;&gt;&lt;/p&gt;

&lt;p&gt; Apellido: &lt;input type=&quot;text&quot; size=&quot;10&quot; name=&quot;apellido&quot;&gt;&lt;/p&gt;

&lt;p&gt; Email: &lt;input type=&quot;text&quot; size=&quot;10&quot; name=&quot;email&quot;&gt;&lt;/p&gt;

&lt;p&gt; &lt;input type=&quot;submit&quot; size=&quot;10&quot; value=&quot;E N V I A R&quot;&gt;&lt;/p&gt;

&lt;/form&gt;
&lt;/body&gt;
&lt;/html&gt;

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