if (document.getElementById)
{
  var content = document.getElementById('portal-column-content');
  if (content)
  {
    var trim = function(s) {
      return s.replace(/<[^>]*>|&nbsp;|\s+/g,'');
    };
    
    var oSL = document.getElementById('portal-column-one');
    var oSR = document.getElementById('portal-column-two');
    
    if (oSL)
    {
      var sl = trim(oSL.innerHTML);
      if (!sl) oSL.style.display = "none";
    }
    
    if (oSR)
    {
      var sr = trim(oSR.innerHTML);
      if (!sr) oSR.style.display = "none";
    }
    
    content.className = (sl && sr && 'sl sr') || (sl && 'sl') || (sr && 'sr') || '';
  }
}