Validar Campos de Textos

[ZeroLino]

Iniciado por ZeroLino

function AllowOnly(Expression)
{
Expression = Expression.toLowerCase();
Expression = Replace(Expression, 'a..z', 'abcdefghijklmnopqrstuvwxyz');
Expression = Replace(Expression, '0..9', '0123456789');
Expression = Replace(Expression, '|', '');

var ch = String.fromCharCode(window.event.keyCode);
ch = ch.toLowerCase();
Expression = Expression.toLowerCase();
var a = Expression.indexOf(ch);
if (a == -1)
window.event.keyCode = 0;
}

function Replace(Expression, Find, Replace)
{
var temp = Expression;
var a = 0;

for (var i = 0; i < Expression.length; i++)
{
a = temp.indexOf(Find);
if (a == -1)
break
else
temp = temp.substring(0, a) + Replace + temp.substring((a + Find.length));
}

return temp;
}

function Len(string)
{
if (string == null)
return (false);

return String(string).length;
}

function Mid(String, Start, Length)
{
if (String == null)
return (false);

if (Start > String.length)
return '';

if (Length == null || Length.length == 0)
return (false);

return String.substr((Start - 1), Length);
}
///////////////////////////////////////////////////////

aki esta la funcion que valida lo que quieras

si tienes duda cmo se llama.. ahi estamos para ayudar