//Gets the browser specific XmlHttpRequest Object 
function getXmlHttpRequestObject() {
 if (window.XMLHttpRequest) {
    return new XMLHttpRequest(); //Mozilla, Safari ...
 } else if (window.ActiveXObject) {
    return new ActiveXObject("Microsoft.XMLHTTP"); //IE
 } else {
    //Display our error message
    alert("Your browser doesn't support the XmlHttpRequest object.");
 }
}

//Our XmlHttpRequest object
var receiveReq = getXmlHttpRequestObject();

//Initiate the AJAX request
function makeRequestMisbruik(url, param) {
//If our readystate is either not started or finished, initiate a new request
 if (receiveReq.readyState == 4 || receiveReq.readyState == 0) {
   //Set up the connection to captcha_test.html. True sets the request to asyncronous(default) 
   receiveReq.open("POST", url, true);
   //Set the function that will be called when the XmlHttpRequest objects state changes
   receiveReq.onreadystatechange = updatePageMisbruik; 

   receiveReq.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
   receiveReq.setRequestHeader("Content-length", param.length);
   receiveReq.setRequestHeader("Connection", "close");

   //Make the request
   receiveReq.send(param);
 }   
}

//Called every time our XmlHttpRequest objects state changes
function updatePageMisbruik() {
 //Check if our response is ready
 if (receiveReq.readyState == 4) {
   //Set the content of the DIV element with the response text
   /*
   if(vraagId == undefined) {
     Id = antwoordId;
     antwoordId = undefined;
   }
   if(antwoordId == undefined) {
     Id = vraagId;
     vraagId = undefined;
   }
   */                      
   document.getElementById('feedbackToUserEmailVriend'+Id).innerHTML = receiveReq.responseText;
 }
}

//Set the URL
 var Id;  //global
//Called every time when form is perfomed
function emailVriend(theForm) {   
 //Set up the parameters of our AJAX call 

 Id = encodeURIComponent( theForm.vraagId.value );                                                                              
 var emailOntvanger = encodeURIComponent( theForm.emailOntvanger.value );                                                                             
 var persoonlijk_bericht = encodeURIComponent( theForm.persoonlijkBericht.value );                                                                             

 var postStr = "email_vriend="+ Id +'|'+ emailOntvanger +'|'+ persoonlijk_bericht; 

 urlEmailVriend = 'libs/functions/emailVriend.php';
 //Call the function that initiate the AJAX request
 makeRequestMisbruik(urlEmailVriend, postStr);
}