function getId(name)
{
  var field = 0;
  if (document.getElementById)
  {
    field = document.getElementById(name);
  }
  else if (document.all)
  {
    field = document.all[name];
  }
  else if (document.layers)
  {
    field = document.layers[name];
  }
  return field;
}

function getStyleForId(name)
{
  var st;
  if (document.getElementById)
  {
    st = document.getElementById(name).style;
  }
  else if (document.all)
  {
    st = document.all[name].style;
  }
  else if (document.layers)
  {
    st = document.layers[name];
  }
  return st;
}

function setBackgroundForId(name, value)
{
 var st = getStyleForId(id);
  st.background = value;
  }