function createXMLHttpRequest() {
    if (window.ActiveXObject) {
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    } 
    else if (window.XMLHttpRequest) {
        xmlHttp = new XMLHttpRequest();
    }
}

function sluitHelp(){
	document.getElementById('helpContainer').style.display = "none";
	document.getElementById('transparent').style.display = "none";
	document.getElementById('menu4iframe').style.display = "none";
}

function openHelp(link, section, taal, soort){
	createXMLHttpRequest();
         
    var myRandom = parseInt(Math.random() * 99999999);
    var url = link + "ajax/helpdesk.php?section=" + section + "%26taal=" + taal + "%26soort=" + soort + "%26rand=" + myRandom;

    xmlHttp.onreadystatechange = showHelpdesk;
    xmlHttp.open("GET", url, true);
    xmlHttp.send(null);
}

function showHelpdesk() {
    // we are only interested in readyState of 4,
    // i.e. "loaded"
    if(xmlHttp.readyState == 4) {
        // if server HTTP response is "OK"
        if(xmlHttp.status == 200) {
        	// Echo de zoekresultaten
        	document.getElementById('helpContainer').style.display = "block";
        	document.getElementById('transparent').style.display = "block";
        	document.getElementById('menu4iframe').style.display = "block";
			document.getElementById('helpContainer').innerHTML = xmlHttp.responseText;
            // alert("The server said: " + xmlHttp.responseText);
        } else {
            // issue an error message for any
            // other HTTP response
            alert("An error has occurred: " + xmlHttp.statusText);
        }
    }
}

function stelVraag(link, taal, soort){
	createXMLHttpRequest();
         
    var vraag = document.getElementById('stelVraag').value;
    encoded = urlencode(vraag);
    
    var myRandom = parseInt(Math.random() * 99999999);
    var url = link + "/ajax/helpdesk2.php?taal=" + taal + "%26soort=" + soort + "%26rand=" + myRandom + "%26vraag=" + encoded;

    xmlHttp.onreadystatechange = showHelpdesk;
    xmlHttp.open("GET", url, true);
    xmlHttp.send(null);
}

function urlencode(str) {
	return escape(str).replace(/\+/g,'%2B').replace(/%20/g, '%2b').replace(/%0D%0A/g, '%2b').replace(/\*/g, '%2A').replace(/\//g, '%2F').replace(/@/g, '%40');
}

function showform(){
	document.getElementById('emailform').style.display = "block";
}

function hideform(){
	document.getElementById('emailform').style.display = "none";
}

function checkForm(link, value, taal, errormsg){
	var error = false;
	if(document.getElementById('emailControlecode').value.toUpperCase() != value.toUpperCase()){
		error = true;
	}
	if(	document.getElementById('emailNaam').value == "" ||
		document.getElementById('emailBericht').value == "" ||
		document.getElementById('emailEmail').value == ""){
		error = true;
	}
	
	if(error){
		alert(errormsg);
	}
	else {
		stuurMail(link, document.getElementById('emailNaam').value, document.getElementById('emailEmail').value, document.getElementById('emailBericht').value, taal);
	}
}

function stuurMail(link, naam, email, bericht, taal){
	createXMLHttpRequest();
    
	naam_encoded = urlencode(naam);
	email_encoded = urlencode(email);
    bericht_encoded = urlencode(bericht);
  
    var myRandom = parseInt(Math.random() * 99999999);
    var url = link + "/ajax/helpdesk3.php?naam=" + naam_encoded + "%26email=" + email_encoded + "%26rand=" + myRandom + "%26bericht=" + bericht_encoded;

    xmlHttp.onreadystatechange = function(){
    	if(xmlHttp.readyState == 4) {
            // if server HTTP response is "OK"
            if(xmlHttp.status == 200) {
            	// Echo de zoekresultaten
            	alert(xmlHttp.responseText);
            	
            	document.getElementById('emailNaam').value = "";
        		document.getElementById('emailBericht').value = "";
        		document.getElementById('emailEmail').value = "";
            }
        }
    };
    xmlHttp.open("GET", url, true);
    xmlHttp.send(null);
}