// JavaScript para agregar una enlace nuevo

var http_request = false;
function makePOSTRequest(url, parameters) {
	http_request = false;
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
			if (http_request.overrideMimeType) {
				http_request.overrideMimeType('text/html');
			}
	} else if (window.ActiveXObject) { // IE
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}
	if (!http_request) {
		alert('No se puede crear la instancia XMLHTTP');
		return false;
	}
	http_request.onreadystatechange = alertContents;
	http_request.open('POST', url, true);
	http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	http_request.setRequestHeader("Content-length", parameters.length);
	http_request.setRequestHeader("Connection", "close");
	http_request.send(parameters);
}

function alertContents() {
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			//alert(http_request.responseText);
			result = http_request.responseText;
			document.getElementById('resultado_post').style.display = 'block';
			document.getElementById('resultado_post').innerHTML = result;
			//alert(result.indexOf('coincide'));
			if (result.indexOf('e24141') < 0) {
				document.getElementById("boton_submit").disabled = true;
			}
			//actualizarImagen(0)
		} else {
			alert('Hubo un problema con la petición.');
		}
	} else if (http_request.readyState == 1 || http_request.readyState == 2 || http_request.readyState == 3) {
			document.getElementById('resultado_post').style.display = 'block';
			document.getElementById('resultado_post').innerHTML = '<img src="../img/loading.gif" alt="cargando" />';
	}
}

function get(obj) {
	var poststr = "nombre=" + encodeURI( document.getElementById("campo1").value ) +
		"&mail=" + encodeURI( document.getElementById("campo2").value ) +
		"&mensaje=" + encodeURI( document.getElementById("campo3").value ) +
		"&captcha=" + encodeURI( document.getElementById("campo4").value ) +
		"&id_imagen=" + encodeURI( document.getElementById("id_imagen0").value );
	makePOSTRequest('postContactar.php', poststr);
}