Foros del Web - Ver Mensaje Individual

mikel_gomez · #7 (**permalink**) 03/07/2002, 18:34

Ejemplo casi completo (falta completar las listas desplegables):

Código:

&lt;html&gt;
&lt;head&gt;
&lt;script type=&quot;text/javascript&quot;&gt;
function validaFecha(dia, mes, ano) {
var mesNum     = parseInt(mes,10)-1;
var fechaAno   = new Date(parseInt(ano,10),1,1);
var fechaDate  = new Date(parseInt(ano,10),mesNum,parseInt(dia,10));
return (fechaAno.getFullYear() == fechaDate.getFullYear() &amp;&amp;
mesNum == fechaDate.getMonth()) ? true : false;
}
function comprobarFecha() {
var dia = document.frm.dia[document.frm.dia.selectedIndex].value ;
var mes = document.frm.mes[document.frm.mes.selectedIndex].value ;
var ano = document.frm.ano[document.frm.ano.selectedIndex].value ;
alert('La fecha ' + ((validaFecha(dia,mes,ano))?'es válida':'NO es válida'));
}
&lt;/script&gt;
&lt;/head&gt;
&lt;body&gt;
&lt;div&gt;
Validación de fechas
&lt;hr&gt;
&lt;form name=&quot;frm&quot;&gt;
Día:
&lt;select name=&quot;dia&quot;&gt;
&lt;option value=&quot;&quot;&gt;&lt;/option&gt;
&lt;option value=&quot;28&quot;&gt;28&lt;/option&gt;
&lt;option value=&quot;29&quot;&gt;29&lt;/option&gt;
&lt;option value=&quot;30&quot;&gt;30&lt;/option&gt;
&lt;option value=&quot;31&quot;&gt;31&lt;/option&gt;
&lt;/select&gt;
Mes:
&lt;select name=&quot;mes&quot;&gt;
&lt;option value=&quot;&quot;&gt;&lt;/option&gt;
&lt;option value=&quot;01&quot;&gt;Enero&lt;/option&gt;
&lt;option value=&quot;02&quot;&gt;Febrero&lt;/option&gt;
&lt;option value=&quot;03&quot;&gt;Marzo&lt;/option&gt;
&lt;option value=&quot;04&quot;&gt;Abril&lt;/option&gt;
&lt;/select&gt;
Año:
&lt;select name=&quot;ano&quot;&gt;
&lt;option value=&quot;&quot;&gt;&lt;/option&gt;
&lt;option value=&quot;1999&quot;&gt;1999&lt;/option&gt;
&lt;option value=&quot;2000&quot;&gt;2000&lt;/option&gt;
&lt;option value=&quot;2001&quot;&gt;2001&lt;/option&gt;
&lt;option value=&quot;2002&quot;&gt;2002&lt;/option&gt;
&lt;/select&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;
&lt;input type=&quot;button&quot; value=&quot;Validar&quot; onclick=&quot;comprobarFecha();&quot;&gt;
&lt;/form&gt;
&lt;/div&gt;
&lt;/body&gt;
&lt;/html&gt;

Saludos.

<style>.t{font: 8pt verdana; text-decoration: none; color: black;}</style><hr><span class="t"><a href="mailto:[email protected]" class="t" style="font: 10pt;">Mikel Gómez</a><br>Hay que aprender mucho para saber poco.</span>