function MostrarComentarios(valor) {
    w=600;
	h=600;
	t=(screen.height - h -30) / 2;
	l=(screen.width - w) / 2;
			window.open('./blog.comentarios.php?id='+valor,'comentarios','top='+t+',height='+h+',left='+l+',width='+w+',toolbar=no,menubar=no,location=no,scrollbars=yes');
}

function CheckMaximoDeCaracteres(control,valor) {
	window.status="caracteres="+control.value.length;
	if (control.value.length > valor)
		control.value = control.value.substring(0, valor);
}