conBrowser=1;
  switch1on  = new Image();  switch1on.src  = 'images/nav_on_01.gif';
  switch1off = new Image();  switch1off.src = 'images/nav_off_01.gif';
  switch2on  = new Image();  switch2on.src  = 'images/nav_on_02.gif';
  switch2off = new Image();  switch2off.src = 'images/nav_off_02.gif';
  switch3on  = new Image();  switch3on.src  = 'images/nav_on_03.gif';
  switch3off = new Image();  switch3off.src = 'images/nav_off_03.gif';
  switch4on  = new Image();  switch4on.src  = 'images/nav_on_04.gif';
  switch4off = new Image();  switch4off.src = 'images/nav_off_04.gif';
  switch5on  = new Image();  switch5on.src  = 'images/nav_on_05.gif';
  switch5off = new Image();  switch5off.src = 'images/nav_off_05.gif';

function HighLight(musswitch) {
	if (conBrowser) {
		switchnavn = eval(musswitch + "on");
      		document [musswitch].src = switchnavn.src;
    		}
  	}

function UndoHighLight(musswitch) {
	if (conBrowser) {
		switchnavn = eval(musswitch + "off");
		document [musswitch].src = switchnavn.src;
		}
	}