Xoffset = 16;
Yoffset = -101;

var preview = (document.all),y_afstand = -1000;

var ns4 = document.layers;
var ns6 = document.getElementById&&!document.all;
var ie4 = document.all;

if (ns4) {preview = document.plaatje;}
else if (ns6) {preview=document.getElementById("plaatje").style;}
else if (ie4) {preview=document.all.plaatje.style;}
if (ns4) {document.captureEvents(Event.MOUSEMOVE);}
else {
   preview.visibility="visible";
   preview.display="none";
}
document.onmousemove=get_mouse;

function toonplaatje(nr) {
   var content = "<img src=http://www.randomspel.nl/images/previews/"+nr+".gif width=111 height=85>";
   y_afstand = Yoffset;
   if (ns4) {preview.document.write(content);preview.document.close();preview.visibility="visible";}
   if (ns6) {document.getElementById("plaatje").innerHTML=content;preview.display='';}
   if (ie4) {document.all("plaatje").innerHTML=content;preview.display='';}
}

function get_mouse(e) {
   var posX = 0;
   var posY = 0;
   if (!e) var e = window.event;
   if (e.pageX || e.pageY) {
      posX = e.pageX;
      posY = e.pageY;
   }
   else if (e.clientX || e.clientY) {
      posX = e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
      posY = e.clientY + document.body.scrollTop + document.documentElement.scrollTop;
   }
   preview.left = (posX+Xoffset)+"px";
   preview.top = (posY+y_afstand)+"px";
}

function verbergplaatje() {
   y_afstand = -1000;
   if (ns4){preview.visibility="hidden";}
   else if (ns6||ie4) {preview.display="none";}
}