var ie = (document.all) ? true : false;

function toggleClass(objClass){
  if (getElementByClass(objClass).style.display=="none"){
    showClass(objClass)
  }else{
    hideClass(objClass)
  }
}

function hideClass(objClass){
var elements = (ie) ? document.all : document.getElementsByTagName('*');
  for (i=0; i<elements.length; i++){
    if (elements[i].className==objClass){
      elements[i].style.display="none"
    }
  }
}

function showClass(objClass){
var elements = (ie) ? document.all : document.getElementsByTagName('*');
  for (i=0; i<elements.length; i++){
    if (elements[i].className==objClass){
      elements[i].style.display=""
    }
  }
}

function toggleID(objID){
var element = (ie) ? document.all(objID) : document.getElementById(objID);
  if (element.style.display="none"){
    showID(objID)
  }else{
    hideID(objID)
  }
}

function hideID(objID){
var element = (ie) ? document.all(objID) : document.getElementById(objID);
  element.style.display="none"
}

function showID(objID){
var element = (ie) ? document.all(objID) : document.getElementById(objID);
  element.style.display=""
}

function getElementByClass(objClass){
var elements = (ie) ? document.all : document.getElementsByTagName('*');
  for (i=0; i<elements.length; i++){
    if (elements[i].className==objClass){
    return elements[i]
    }
  }
}