function img_act(){} function img_act(){}

function init() {
if (window.Event) {document.captureEvents(Event.MOUSEMOVE);}
document.onmousemove = haalMuisPositie; }

function haalMuisPositie(e) {
muisX = (window.Event) ? e.pageX : event.clientX;
muisY = (window.Event) ? e.pageY : event.clientY; }

function toonPlaatje(naam,beeldje) { 
laag = document.getElementById(naam);
laag.innerHTML = '<img src=' +beeldje+'>'; 
laag.style.visibility = "visible";
position:absolute;
plaatsPlaatje() }

function verbergPlaatje(naam){ 
laag = document.getElementById(naam); 
laag.style.visibility = "hidden"; }
 
function plaatsPlaatje() { 
laag.style.top = muisY + "px"; 
laag.style.left = muisX + "px"; } 

b1w = new Image; b1w.src = "images/1a.gif";
b2w = new Image; b2w.src = "images/1a.gif";
b3w = new Image; b3w.src = "images/1a.gif";
b4w = new Image; b4w.src = "images/1a.gif";
b5w = new Image; b5w.src = "images/2a.gif";
b6w = new Image; b6w.src = "images/2a.gif";
b7w = new Image; b7w.src = "images/2a.gif";
b8w = new Image; b8w.src = "images/2a.gif";
b9w = new Image; b9w.src = "images/n9a.gif";
b10w = new Image; b10w.src = "images/n10a.gif";
b11w = new Image; b11w.src = "images/n11a.gif";
b12w = new Image; b12w.src = "images/12a.gif";
b13w = new Image; b13w.src = "images/13a.gif";
b14w = new Image; b14w.src = "images/14a.gif";
b1g = new Image; b1g.src = "images/1ag.gif";
b2g = new Image; b2g.src = "images/1ag.gif";
b3g = new Image; b3g.src = "images/1ag.gif";
b4g = new Image; b4g.src = "images/1ag.gif";
b5g = new Image; b5g.src = "images/2ag.gif";
b6g = new Image; b6g.src = "images/2ag.gif";
b7g = new Image; b7g.src = "images/2ag.gif";
b8g = new Image; b8g.src = "images/2ag.gif";
b9g = new Image; b9g.src = "images/n9ag.gif";
b10g = new Image; b10g.src = "images/n10ag.gif";
b11g = new Image; b11g.src = "images/n11ag.gif";
b12g = new Image; b12g.src = "images/12ag.gif";
b13g = new Image; b13g.src = "images/13ag.gif";
b14g = new Image; b14g.src = "images/14ag.gif";

function img_act(imgName){ document [imgName].src = eval(imgName +
'g.src') }

function img_inact(imgName){ document [imgName].src = eval(imgName +
'w.src') }

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_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' bevat geen geldig e-mail adres.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is een verplicht veld.\n'; }
  } if (errors) alert('De volgende fouten traden op:\n'+errors);
  document.MM_returnValue = (errors == '');
}