function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

addLoadEvent(dorotation);

function changeRotation() {
	$('#afbeelding'+counter2+'_'+rotationid).fadeIn('slow');
	$('#afbeelding'+counter+'_'+rotationid).fadeOut('slow');
	counter++;
	counter2++;
	if (counter > aantalHome) {
		counter = 1;
	}
	if (counter2 > aantalHome) {
		counter2 = 1;
	}
	setTimeout("changeRotation()",3000);
}

var doRotation = false;
function dorotation() {
	if (doRotation) {
		setTimeout("changeRotation()",2000);
	}
}