function selectThis(objId) {
  var inputs = document.getElementsByTagName('input');
  for (var i = 0; i < inputs.length; i++) {
    if ( (inputs[i].type == 'checkbox') && (inputs[i].id == objId) ) {
      inputs[i].checked = true;
    }
  }
  return;
}
function selectAll() {
  var inputs = document.getElementsByTagName('input');
  for (var i = 0; i < inputs.length; i++) {
      inputs[i].checked = true;
  }
  return;
}
function unselectAll(objID) {
  var inputs = document.getElementsByTagName('input');
  for (var i = 0; i < inputs.length; i++) {
    if ( (inputs[i].type == 'checkbox') && (objID != "") && (inputs[i].id == objID) ) {
      inputs[i].checked = false;
    }
    else if ( (inputs[i].type == 'checkbox') && (objID == "") ) {
      inputs[i].checked = false;
    }
  }
  return;
}
function numcompare(a,b) {
  return a-b;
}
function showOrHide(objName) {
  var str;
  str = objName + "arrow";
  if(document.getElementById(objName).style.display == "none") {
    document.getElementById(objName).style.display = "block";
//    document.getElementById(str).firstChild.nodeValue = "&#160;&#160;&#160;&#9660;";
//    document.getElementById(str).innerHTML = "&#160;&#160;&#160;&#9660;";
  }
  else { 
    document.getElementById(objName).style.display = "none";
//    document.getElementById(str).innerHTML = "&#160;&#160;&#160;&#9658;";
  }
  return true;
}