conBrowser=1;
  switch1on  = new Image();  switch1on.src  = '../images/nav_company2.gif';
  switch1off = new Image();  switch1off.src = '../images/nav_company.gif';
  switch2on  = new Image();  switch2on.src  = '../images/nav_services2.gif';
  switch2off = new Image();  switch2off.src = '../images/nav_services.gif';
  switch3on  = new Image();  switch3on.src  = '../images/nav_portfolio2.gif';
  switch3off = new Image();  switch3off.src = '../images/nav_portfolio.gif';
  switch4on  = new Image();  switch4on.src  = '../images/nav_contact2.gif';
  switch4off = new Image();  switch4off.src = '../images/nav_contact.gif';


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

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