conBrowser=1;
  switch1on  = new Image();  switch1on.src  = 'images/nav_about2.html';
  switch1off = new Image();  switch1off.src = 'images/nav_about.html';
  switch2on  = new Image();  switch2on.src  = 'images/nav_services2.html';
  switch2off = new Image();  switch2off.src = 'images/nav_services.html';
  switch3on  = new Image();  switch3on.src  = 'images/nav_products2.html';
  switch3off = new Image();  switch3off.src = 'images/nav_products.html';
  switch4on  = new Image();  switch4on.src  = 'images/nav_references2.html';
  switch4off = new Image();  switch4off.src = 'images/nav_references.html';
  switch5on  = new Image();  switch5on.src  = 'images/nav_industry2.html';
  switch5off = new Image();  switch5off.src = 'images/nav_industry.html';
  switch6on  = new Image();  switch6on.src  = 'images/nav_brochures2.html';
  switch6off = new Image();  switch6off.src = 'images/nav_brochures.html';


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;
		}
	}