function createRequestObject() {
    var tmpXmlHttpObject;
    if (window.XMLHttpRequest) { 
        tmpXmlHttpObject = new XMLHttpRequest();
    } else if (window.ActiveXObject) { 
        tmpXmlHttpObject = new ActiveXObject("Microsoft.XMLHTTP");
    }
    return tmpXmlHttpObject;
}

var http = createRequestObject();

function getFunctions(fun,fgb) {
    var vfgb = eval("document.order."+fgb+"[document.order."+fgb+".selectedIndex].value");
	http.open("get","http://www.kluwershop.nl/getfunctions.asp?fgb="+vfgb+"&name="+fun);
	eval("http.onreadystatechange = function() { if (http.readyState == 4) { var response = http.responseText; document.getElementById('"+fun+"').innerHTML = response; }}");
	http.send(null);
}