// JavaScript Document
function chkDiv(id, display) {
  var div, style;

  if(document.getElementById) {
    div = document.getElementById(id);
  }
  if(div && (style = div.style)) {
    if(div.filters) {
      style.filter = 'blendTrans(duration=1)';
      div.filters.blendTrans.Apply();
      div.filters.blendTrans.Play();
    }
    style.display = display;
  }
}