<!--

// getElementById
function getElementById(elementId) {

  element = null;
	if (elementId!=null) {
	
	if ((document.getElementById) && (document.getElementById(elementId))) {
    element = document.getElementById(elementId);
  }

  else if ((document.all) && (document.all[elementId])) {
    element = document.all[elementId];
  }
	
  else if ((document.layers) && (document.layers[elementId])) {
    element = document.layers[elementId];
  }

  }
	return element;
}

// changeObjectVisibility
function changeObjectVisibility(elementId,visible) {
  if (elementId!=null) {

  if ((document.getElementById) && (document.getElementById(elementId))) {
    if (visible==true) {
      document.getElementById(elementId).style.visibility = "visible";
    }
    else {
      document.getElementById(elementId).style.visibility = "hidden";
    }
  }

  else if ((document.all) && (document.all[elementId])) {
    if (visible==true) {
      document.all[''+elementId].style.visibility = "visible";
    }
    else {
      document.all[''+elementId].style.visibility = "hidden";
    }
  }
	
  else if ((document.layers) && (document.layers[elementId])) {
    if (visible==true) {
      document.layers[''+elementId].visibility = "show";
    }
    else {
      document.layers[''+elementId].visibility = "hide";
    }
  }
  }
}

//-->