if (document.images) 
{
  aovr		= new Image(92,30); aovr.src = "homea.gif";
  aoff		= new Image(92,30); aoff.src = "home.gif";
  bovr		= new Image(92,30); bovr.src = "pressa.gif";
  boff		= new Image(92,30); boff.src = "press.gif";
  covr		= new Image(92,30); covr.src = "infa.gif";
  coff		= new Image(92,30); coff.src = "inf.gif";

}
function point( imageName ) {
  if ( document.images ) {
    document[ imageName ].src = eval(imageName + "ovr.src");
  }
}

function nopoint( imageName ) {
  if ( document.images ) {
    document[ imageName ].src = eval(imageName + "off.src");
  }
}