var draging=false;
var begintopwaarde;
var beginleftwaarde;

function Dragstart() {
  //Begin met verplaatsen.
//  draging=true;
//  mousex = event.screenX-Menu.style.posLeft;
//  mousey = event.screenY-Menu.style.posTop;
}
function doDrag(){
  if (draging){
    Menu.style.pixelLeft = event.screenX - mousex;
    Menu.style.pixelTop = event.screenY - mousey;
  }
}

function DragStop() {
   draging=false;
}

ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false

function setPostn() {
if (ns4) {
    a=".top=";
    adoc="document.";
    docs="";
    b="window.pageYOffset";
    }
else {
    a=".pixelTop=";
    adoc="";
    docs=".style";
    b="document.body.scrollTop + 5";
   }
}
function checkPostn() {
	setPostn()
    object="Menu";
    c=eval(b);
    eval(adoc+object+docs+a+c);
    setTimeout("checkPostn()",5);
}

//function checkPostn() {
//    Menu.style.pixelTop=document.body.scrollTop + 5;
//    setTimeout("checkPostn()",6);
//}