function hideid(d) 
{
  if(d.length < 1) { return; }
  document.getElementById(d).style.display = "none";
  document.getElementById(d).style.visibility = "hidden";

}

function showid(d) 
{
  if(d.length < 1) { return; }
  document.getElementById(d).style.display = "block";
  document.getElementById(d).style.visibility = "visible";

}


function setclasses(params) {
  for(var classname in params) {
    for(var i in params[classname]) {
      var obj = document.getElementById(params[classname][i]);
      if (obj) obj.className = classname;
    }
  }
}