<!--

function showLAYER(idName){

  if ( document.getElementById )
              document.getElementById( idName ).style.visibility   = 'visible'
  else if ( document.all ) document.all( idName ).style.visibility = 'visible'
  else if ( document.layers ) document.layers[ idName ].visibility = 'show'

}

function hideLAYER(idName){

  if ( document.getElementById )
              document.getElementById( idName ).style.visibility   = 'hidden'
  else if ( document.all ) document.all( idName ).style.visibility = 'hidden'
  else if ( document.layers ) document.layers[ idName ].visibility = 'hide'

}

//-->