function _(element) 
{
    if (arguments.length > 1) 
    {
        for (var i = 0, elements = [], length = arguments.length; i < length; i++)
          elements.push($(arguments[i]));
        return elements;
    }
    else
        return document.getElementById(element);
}

function changeCode()
{
	_('code_img').src='http://www.hansmooiman.nl/wesley/captcha.png?'+Math.random();
    _('refreshmsg').style.display = 'none';
}
function createRequestObject()
{
	try
	{
		xmlhttp = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("Microsoft.XMLHTTP");
	}
	catch(e)
	{
		alert('Browser ondersteunt geen ajax.');
	}
	return xmlhttp;
}

var http = createRequestObject();

function submitcontactform(){
var naam = document.getElementById("naam").value;
var email = document.getElementById("email").value;
var onderwerp = document.getElementById("onderwerp").value;
var bericht = document.getElementById("bericht").value;
var captcha = document.getElementById("captcha").value;
document.getElementById('loading').style.display = 'block';

http.open('GET', 'http://www.hansmooiman.nl/wesley/include/ajax/checkc.php?naam=' +naam +'&onderwerp=' +onderwerp +'&email=' +email+ '&captcha='+captcha+'&bericht='+escape(bericht)); 

	http.onreadystatechange = printit;
	http.send(null);
}
function printit()
{
	if(http.readyState == 4)
	{
	
	document.getElementById('loading').style.display = 'none';
	document.getElementById('results').innerHTML = http.responseText; 
	}
}