conBrowser=1;
  switch1on  = new Image(165,107);  switch1on.src  = 'buttons/webdesign_do.gif';
  switch1off = new Image(165,107);  switch1off.src = 'buttons/webdesign_up.gif';
  switch2on  = new Image(165,107);  switch2on.src  = 'buttons/webdesign-werkwijze_do.gif';
  switch2off = new Image(165,107);  switch2off.src = 'buttons/webdesign-werkwijze_up.gif';
  switch3on  = new Image(165,107);  switch3on.src  = 'buttons/portfolio-webdesign_do.gif';
  switch3off = new Image(165,107);  switch3off.src = 'buttons/portfolio-webdesign_up.gif';
  switch4on  = new Image(165,107);  switch4on.src  = 'buttons/fotografie_do.gif';
  switch4off = new Image(165,107);  switch4off.src = 'buttons/fotografie_up.gif';
  switch5on  = new Image(165,107);  switch5on.src  = 'buttons/imaging_do.gif';
  switch5off = new Image(165,107);  switch5off.src = 'buttons/imaging_up.gif';
  switch6on  = new Image(165,107);  switch6on.src  = 'buttons/contact_do.gif';
  switch6off = new Image(165,107);  switch6off.src = 'buttons/contact_up.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;
		}
	}