function switchElement( aOffElements, strOnElement, aOffLinks, strOnLink, strOffClassName, strOnClassName )
{
  for ( var i = 0; i < aOffElements.length; i++ )
  {
    var oElement = document.getElementById( aOffElements[i] );
    if ( oElement ) oElement.style.display = 'none';
  }
  
  var oOnElement = document.getElementById( strOnElement );
  if ( oOnElement ) oOnElement.style.display = 'block';
  
  
  for ( var i = 0; i < aOffLinks.length; i++ )
  {
    var oOffLink = document.getElementById( aOffLinks[i] );
    if ( oOffLink ) oOffLink.className = strOffClassName;
  }
  
  var oOnLink = document.getElementById( strOnLink );
  if ( oOnLink ) oOnLink.className = strOnClassName;
}