one_over = new Image();
one_over.src = '/bitmaps2/navigation/01_mouseover.gif';
one_out = new Image();
one_out.src = '/bitmaps2/navigation/01_mouseout.gif';

two_over = new Image();
two_over.src = '/bitmaps2/navigation/02_mouseover.gif';
two_out = new Image();
two_out.src = '/bitmaps2/navigation/02_mouseout.gif';

three_over = new Image();
three_over.src = '/bitmaps2/navigation/03_mouseover.gif';
three_out = new Image();
three_out.src = '/bitmaps2/navigation/03_mouseout.gif';

four_over = new Image();
four_over.src = '/bitmaps2/navigation/04_mouseover.gif';
four_out = new Image();
four_out.src = '/bitmaps2/navigation/04_mouseout.gif';

five_over = new Image();
five_over.src = '/bitmaps2/navigation/05_mouseover.gif';
five_out = new Image();
five_out.src = '/bitmaps2/navigation/05_mouseout.gif';

six_over = new Image();
six_over.src = '/bitmaps2/navigation/06_mouseover.gif';
six_out = new Image();
six_out.src = '/bitmaps2/navigation/06_mouseout.gif';

seven_over = new Image();
seven_over.src = '/bitmaps2/navigation/07_mouseover.gif';
seven_out = new Image();
seven_out.src = '/bitmaps2/navigation/07_mouseout.gif';

eight_over = new Image();
eight_over.src = '/bitmaps2/navigation/08_mouseover.gif';
eight_out = new Image();
eight_out.src = '/bitmaps2/navigation/08_mouseout.gif';

function swap (nametag, imgsrc)
{
  if ((navigator.appName == 'Netscape' && navigator.appVersion.substring(0,2)!='2.') ||      (navigator.appName   == 'Microsoft Internet Explorer' && navigator.appVersion.substring(0,2)=='4.'))
    document[nametag].src = eval(imgsrc + '.src') ;
}