/* Om lege images te verbergen */
function HideEmptyImages()
{
var regex = new RegExp("(shownoimg)\.gif$");
for (var i=0; i < document.images.length; i++)
if (regex.test(document.images[i].src))
document.images[i].style.display = "none";
}




function setHeightOfElementWithClassName(sUniqueClassNameOfDiv, sIdOfElement) {
  var divs = document.getElementsByTagName('div');
  var re = new RegExp(' ?' + sUniqueClassNameOfDiv + ' ?');
  for (i = 0; i < divs.length; i++) {
    var div = divs[i];

    if (re.test(div.className)) {
      document.getElementById(sIdOfElement).height = div.scrollHeight;
      // since the classname is unique stop
      i = divs.length;
    }
  }
}


/* om button te veranderen */
function  change(obj,nid)
{
	obj.id=nid;
}