function centerImages2() {
var theImageContainer2 = document.getElementById('theImageContainer2');
var theImages2 = theImageContainer2.getElementsByTagName('img');
for (var i=0; i < theImages2.length; i++) {
  var imageWidth = theImages2[i].width;
  var marginLeft = (imageWidth / 2);
  var marginLeftMinus = ( 0 - marginLeft) + "px";
  theImages2[i].style.marginLeft = marginLeftMinus;
  var imageHeight = theImages2[i].height;
  var marginTop = (imageHeight / 2);
  var marginTopMinus = ( 0 - marginTop) + "px";
  theImages2[i].style.marginTop = marginTopMinus;
}
}