function showHideElement(elemId,dispState){
  var item = document.getElementById(elemId);
  
  if (dispState == 'show') item.style.display = 'block';
  if (dispState == 'hide') item.style.display = 'none';
}

function toggleElemVis(elemId){
  var item = document.getElementById(elemId);
  var ind  = document.getElementById(elemId+'_ind');

  if (item.className.indexOf('hide') != -1) {
    item.className = item.className.replace("hide","");
    ind.className = 'collapse';
  }
  else {
    item.className += ' hide';
    ind.className = 'expand';
  }

}