// 
function gridHeight() {
  var pb = document.getElementById("pagebody");
  if (pb) {
    pb.style.borderBottom = "0px";
//    var nh = (Math.floor(pb.offsetHeight / 12) * 12) + 7;
    var x = (((pb.offsetHeight + 1) % 12) + "px solid #fff");
    pb.style.borderBottom = x;
  }
}

/*
Event.add(window, "load", gridHeight);
Event.add(window, "resize", gridHeight);
Event.add(document.getElementById("pagebody"), "resize", gridHeight);
*/