<!-- swap
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}
//-->

function preload() {
 	var brochure = new Array();
 	var pics = preload.arguments;
 	for (i=0;i<pics.length;i++) {
  		brochure[i] = new Image();
  		brochure[i].src = pics[i] + '.jpg'; 
 	}
}

function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

addLoadEvent(function() {
 	preload(
	'images/button-home-over',
	'images/button-websites-over',
	'images/button-multimedia-over',
	'images/button-services-over',
	'images/button-contact-over',
	'images/button-home',
	'images/button-websites',
	'images/button-multimedia',
	'images/button-services',
	'images/button-contact',
	'images/submenu-streep1',
	'images/submenu-streep2',
	'images/submenu-streep3',
	'images/submenu-streep4',
	'images/submenu-algemeneinfo',
	'images/submenu-onzeaanpak',
	'images/submenu-referenties',
	'images/submenu-powerpoint',
	'images/submenu-kaarten',
	'images/submenu-dvd',
	'images/submenu-websites',
	'images/submenu-multimedia',
	'images/submenu-leeg',
	'images/visual-services',
	'images/visual-contact',
	'images/mm-dvd',
	'images/submenu-streep1-over',
	'images/submenu-streep2-over',
	'images/submenu-streep3-over',
	'images/submenu-streep4-over',
	'images/ref-bakkerbart',
	'images/ref-edjo',
	'images/ref-manual',
	'images/referenties',
	'images/screenshot-bakkerbart-1a',
	'images/screenshot-bakkerbart-2',
	'images/screenshot-bakkerbart-1',
	'images/visual-av',
	'images/visual-disclaimer');
});

function switch1(div) {
var option=['zero','dn-1','sf-1','bb-1','bb-2','bb-3','ed-1','ed-2','man-1','man-2'];
for(var i=0; i<option.length; i++) {
if (document.getElementById(option[i])) {
obj=document.getElementById(option[i]);
obj.style.display=(option[i]==div)? "block" : "none";
}
}
}