if (self != top) {
top.location.href = self.location.href;
}

if (!navigator.cookieEnabled) {
document.write('<div class="noscript">Cookies staan niet aan! Deze site werkt niet goed zonder cookies. <a href="http://www.google.com/support/accounts/bin/answer.py?answer=61416">Activeer cookies</a> indien mogelijk.</div>');
}

function validateForm(form) {

	if (form.name.value == "") {
	alert("De velden met een * zijn verplicht.");
	return false;
	}
	
	if (form.email.value == "") {
	alert("De velden met een * zijn verplicht.");
	return false;
	}
	
	if (form.onderwerp.value == "") {
	alert("De velden met een * zijn verplicht.");
	return false;
	}
	
	if (form.bericht.value == "") {
	alert("De velden met een * zijn verplicht.");
	return false;
	}

}

function berichtFocus() {
	document.getElementById('strong').className='focus';document.getElementById('span1').className='focus';document.getElementById('span2').className='focus';
}

function berichtBlur() {
	document.getElementById('strong').className='blur';document.getElementById('span1').className='blur';document.getElementById('span2').className='blur';
}

// **** BEGIN AJAX AANROEP-SCRIPT **** //
var http_request = false;
function makePOSTRequest(url, parameters, spanid, verbergtijd) {
  http_request = false;
  if (window.XMLHttpRequest) { // Mozilla, Safari,...
	 http_request = new XMLHttpRequest();
	 if (http_request.overrideMimeType) {
		// set type accordingly to anticipated content type
		//http_request.overrideMimeType('text/xml');
		http_request.overrideMimeType('text/html');
	 }
  } else if (window.ActiveXObject) { // IE
	 try {
		http_request = new ActiveXObject("Msxml2.XMLHTTP");
	 } catch (e) {
		try {
		   http_request = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (e) {}
	 }
  }
  if (!http_request) {
	 alert('Cannot create XMLHTTP instance');
	 return false;
  }
  
  http_request.onreadystatechange = function() { alertContents(spanid, null, verbergtijd) };
  http_request.open('POST', url, true);
  http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  //http_request.setRequestHeader("Content-length", parameters.length);
  //http_request.setRequestHeader("Connection", "close");
  http_request.send(parameters);
}

var timerRunning = false;

function verbergSpan(spanid) {
timerRunning = false;
document.getElementById(spanid).innerHTML = "";
}

function alertContents(spanid, tekst, verbergtijd) {
	if (!tekst) {
		if (http_request.readyState == 4) {
			if (http_request.status == 200) {
				result = http_request.responseText;
				stopTimer();
				document.getElementById(spanid).innerHTML = result;
					if (spanid == 'fraudereknr' && result != '') {
						document.getElementById("tr_fraudereknr").style.display = 'table-row';
					}
				if (verbergtijd) {
					myTimer = setTimeout(function() { verbergSpan(spanid) }, verbergtijd);
					timerRunning = true;
				}
			}
			else {
				//alert('Er is een probleem opgetreden bij de aanvraag.');
			}
		}
	}
	else {
		stopTimer();
		document.getElementById(spanid).innerHTML = tekst;
		if (verbergtijd) {
			myTimer = setTimeout(function() { verbergSpan(spanid) }, verbergtijd);
			timerRunning = true;
		}
	}
}

function stopTimer() {
    if (timerRunning)
        clearTimeout(myTimer); 
}
// **** EINDE AJAX AANROEP-SCRIPT **** //

var tooltip=function(){
	var id = 'tt';
	var top = 3;
	var left = 3;
	var maxw = 300;
	var speed = 13;
	var timer = 20;
	var timeout = 150;
	var endalpha = 95;
	var alpha = 0;
	var tt,t,c,b,h;
	var ie = document.all ? true : false;
	return{
		show:function(v,w){
			if(tt == null){
				tt = document.createElement('div');
				tt.setAttribute('id',id);
				t = document.createElement('div');
				t.setAttribute('id',id + 'top');
				c = document.createElement('div');
				c.setAttribute('id',id + 'cont');
				b = document.createElement('div');
				b.setAttribute('id',id + 'bot');
				tt.appendChild(t);
				tt.appendChild(c);
				tt.appendChild(b);
				document.body.appendChild(tt);
				tt.style.opacity = 0;
				tt.style.filter = 'alpha(opacity=0)';
				document.onmousemove = this.pos;
			}
			tt.style.display = 'block';
			c.innerHTML = v;
			tt.style.width = w ? w + 'px' : 'auto';
			if(!w && ie){
				t.style.display = 'none';
				b.style.display = 'none';
				tt.style.width = tt.offsetWidth;
				t.style.display = 'block';
				b.style.display = 'block';
			}
			if(tt.offsetWidth > maxw){tt.style.width = maxw + 'px'}
			h = parseInt(tt.offsetHeight) + top;
			clearInterval(tt.timer);
			clearTimeout(tt.timeout);
			tt.timeout = setTimeout(function(){tt.timer = setInterval(function(){tooltip.fade(1)},timer)}, timeout);
		},
		pos:function(e){
			var u = ie ? event.clientY + document.documentElement.scrollTop : e.pageY;
			var l = ie ? event.clientX + document.documentElement.scrollLeft : e.pageX;
			tt.style.top = (u - h) + 'px';
			tt.style.left = (l + left) + 'px';
		},
		fade:function(d){
			var a = alpha;
			if((a != endalpha && d == 1) || (a != 0 && d == -1)){
				var i = speed;
				if(endalpha - a < speed && d == 1){
					i = endalpha - a;
				}else if(alpha < speed && d == -1){
					i = a;
				}
				alpha = a + (i * d);
				tt.style.opacity = alpha * .01;
				tt.style.filter = 'alpha(opacity=' + alpha + ')';
			}else{
				clearInterval(tt.timer);
				if(d == -1){tt.style.display = 'none'}
			}
		},
		hide:function(){
			clearInterval(tt.timer);
			clearTimeout(tt.timeout);
			tt.timer = setInterval(function(){tooltip.fade(-1)},timer);
		}
	};
}();