// JavaScript Document
function validar2() {
var form_err = " "
if ( document.consulta.email.value.length < 1) {
form_err = "Indica tu Email. ";
}
if ( document.consulta.email.value == "votrenom@mail.com") {
form_err = "Indica tu Email. ";
}
var verim = 0;
for (i=1; i<document.consulta.email.value.length -4; i++) {
if ( document.consulta.email.value.charAt(i) == "@") {
verim = 1;
}} 
if ( verim == 0) {
form_err = "Indica tu Email. ";
} 
if ( document.consulta.nombre.value.length < 1) {
form_err += "Indica tu nombre y apellidos. ";
}
if ( document.consulta.mensaje.value.length < 5) {
form_err += "Escribe tu consulta. ";
} 
if ( form_err != " ") {
alert(form_err);
return false;
}
return true 
}