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;
}

function solBoletin(){
	var f = document.form_boletin;

	if(f.email.value == "" || f.lopd.checked == false)
		alert("Por favor completa los campos");  
	else if(f.email.value.lastIndexOf("@") == -1 || f.email.value.lastIndexOf(".") == -1)
		alert("La direcci\u00F3n de email indicada no es correcta");
	else{
		c = document.getElementById('status2');
		
		//variable=documenet.nombre_del_form.nombre_del_control.value
		email=f.email.value;
		
		ajax=nuevoAjax();
		c.innerHTML = 'Estado: <img src="images/esperando.gif"/>'; 
		ajax.open("POST", "boletin.php",true);
		ajax.onreadystatechange=function() {
			if (ajax.readyState==4) {
				c.innerHTML = ajax.responseText;
			}
			borrarBoletin()
		}
		ajax.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
		ajax.send("email="+email);
	}
}

function borrarBoletin(){
	var f = document.form_boletin;
	f.email.value="";
	f.lopd.checked=false;

}