// AJAX
function nuevoAjax() {
	var xmlhttp=false;
	try {
		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
		try {
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (E) {
			xmlhttp = false;
		}
	}

	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
		xmlhttp = new XMLHttpRequest();
	}
	return xmlhttp;
}

// Validar correos
function validarEmail(email){

	if (email == null || email.length == 0) {
		return false;
	}

	email1 = /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/.test(email);

	if (!email1) {
		return false;
	}

	return true;
}

// Suscripcion de email al boletin
function suscripcion_boletin() {
	
	// Alta en el boletin
	email = document.getElementById("email").value;
	id_lista = document.getElementById("id_lista").value;
	if (validarEmail(email)) {
		document.getElementById("campos_formulario").style.display = "none";
		c = document.getElementById("resultado_mensaje");
		c.style.display = "block";

		ajax = nuevoAjax();
		c.innerHTML = '<p style="text-align: center; font-weight: bold; font-size: 10px;">Enviando solicitud...<br /><img src="http://www.servicioswebs.com/gadgets/iconos/loading.gif" /></p>';

		ajax.open("POST", "http://www.servicioswebs.com/gadgets/suscripcion_boletin.php",true);
		ajax.onreadystatechange = function() {

			if (ajax.readyState == 4) {
				c.innerHTML = ajax.responseText

				// Email vacio o no definido
				if((c.innerHTML == '0')) {
					c.innerHTML = "Asegurese de escribir el email en el campo del formulario correspondiente.";
				}

				// Email existente
				if(c.innerHTML == '1') {
					c.innerHTML = "Ya te encuentras inscrito en nuestra lista, gracias.";
				}

				// Alta de boletin
				if(c.innerHTML == '2') {
					c.innerHTML = "Gracias por suscribirte.";
				}
				
				c.innerHTML = "<div style=\"font-size: 10px; display: block; font-weight: bold; border: 1px solid #FFCC00; line-height: 1.8em; padding: 10px 15px 10px 10px; margin: 10px 10px 10px 10px;\">" + c.innerHTML + "</div>";
			}
		}
		ajax.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
		//ajax.send("email=" + email);
		ajax.send("email=" + email + "&id_lista=" + id_lista);
	} else {
		alert("La direccion de correo no es valida. Verifique por favor.");
		document.getElementById("email").select();
	}
}