// stores the reference to the XMLHttpRequest object
var xmlHttp = createXmlHttpRequestObject(); 

// retrieves the XMLHttpRequest object
function createXmlHttpRequestObject() 
{	
  // will store the reference to the XMLHttpRequest object
  var xmlHttp;
  // if running Internet Explorer
  if(window.ActiveXObject)
  {
    try
    {
      xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    }
    catch (e) 
    {
      xmlHttp = false;
    }
  }
  // if running Mozilla or other browsers
  else
  {
    try 
    {
      xmlHttp = new XMLHttpRequest();
    }
    catch (e) 
    {
      xmlHttp = false;
    }
  }
  // return the created object or display an error message
  if (!xmlHttp)
 
    alert("Error creating the XMLHttpRequest object.");
  else 
    return xmlHttp;
}

// make asynchronous HTTP request using the XMLHttpRequest object 
function addmember()
{
		
    var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if(!document.rnewsletter.email.value.match(emailExp)){
		alert("Por favor ingrese un email correcto.")
		document.rnewsletter.email.focus()
		return 0;
	}
		
  // proceed only if the xmlHttp object isn't busy
  if (xmlHttp.readyState == 4 || xmlHttp.readyState == 0)
  {
    // retrieve the name typed by the user on the form
  //  name = encodeURIComponent(document.getElementById("myName").value);
    // execute the search_ajax.php page from the server
	email = document.getElementById('email').value;
	xmlHttp.open("GET", "php_scripts/add_member.php?method=addMember&email="+email, true); 
	// define the method to handle server responses
	xmlHttp.onreadystatechange = handleServerResponse2;
	// make the server request
	xmlHttp.send(null);
  }
 // else
    // if the connection is busy, try again after one second  
  //  setTimeout('process(rest_id,rest_name)', 1000);
}



// executed automatically when a message is received from the server
function handleServerResponse2() 
{
  // move forward only if the transaction has completed
  if (xmlHttp.readyState == 4) 
  {
    // status of 200 indicates the transaction completed successfully
    if (xmlHttp.status == 200) 
    {
     
	 // extract the XML retrieved from the server
      xmlResponse = xmlHttp.responseXML;
	  
      // obtain the document element (the root element) of the XML structure
      xmlDocumentElement = xmlResponse.documentElement;
      var inside = '';
      // get the text message, which is in the first child of
      // the the document element
 /*     if(_data.length == 0)
		{
			document.getElementById('review_message').innerHTML = inside;	
		} else {*/
			inside = 'Gracias por subscribirte. Estaremos en contacto.'
			document.getElementById('confNesws').innerHTML = inside;
			document.getElementById('confNesws').style.display ='';
			document.getElementById('email').value = '';
	/*	} */
      // restart sequence
     // setTimeout('process()', 1000);
    } 
    // a HTTP status different than 200 signals an error
    else 
    {
      alert("Hay problemas accediendo al servidor: " + xmlHttp.statusText);
    }
  }
}