function WelkomImage(welkom){
// Browsertest
     ie = (document.getElementById && document.all && document.styleSheets) ? true:false;
     nn = (document.getElementById && !document.all) ? true:false
if (welkom == 0){
	var tekst = "X";
	var stopct = 0 +"px"; 
	var leftct = 380 +"px"; 
    var hct = 20 + "px";
	var wct = 20 + "px";
	if(document.getElementById){
	  Afb=new Image;Afb.src="Knoppen/Sluiten_59.gif";	
	  ZoomDiv=document.getElementById("Welkomdiv");
	  CT=document.createElement("img");ZoomDiv.appendChild(CT);
//      var textnode = document.createTextNode(tekst);CT.appendChild(textnode);
	  ZoomDiv.style.height=Welkomdiv.style.height;
	  CT.style.position="absolute"
	  CT.style.zIndex=201;
	  CT.style.top=ZoomDiv.style.top + stopct;
      CT.style.width=wct;	
	  CT.style.color="white";
	  CT.style.left=ZoomDiv.style.left + leftct;
	  CT.style.height=hct;
//	  CT.style.backgroundColor="red";
//	  CT.style.border = "1px solid Black"
	  CT.src = Afb.src;
	  CT.alt = "sluiten/close";
	  CT.onclick=verbergVenster;
      CT.style.cursor="hand";		
	  if (ie){
    	document.getElementById("Welkomdiv").style.filter = "revealTrans(duration=3,transition=5)";
		document.getElementById("Welkomdiv").filters.revealTrans.apply();														 		document.getElementById("Welkomdiv").style.visibility = "visible";
    	document.getElementById("Welkomdiv").filters.revealTrans.play();
		}
		else{
    	document.getElementById("Welkomdiv").style.visibility = "visible";
		setTimeout('document.getElementById("Welkomdiv").style.visibility = "visible"',500);}} 
        
	else {alert("Dit script gebruikt \"getElementById\". Jouw browser kent deze tag niet.");}}
	else{
		if (ie){document.getElementById("Welkomdiv").style.visibility = "hidden";}
		    else{document.getElementById("Welkomdiv").style.visibility = "hidden";}
         }}
function verbergVenster(){
		if (ie){
		document.getElementById("Welkomdiv").style.filter = "revealTrans(duration=3,transition=4)";
		document.getElementById("Welkomdiv").filters.revealTrans.apply();														 		document.getElementById("Welkomdiv").style.visibility = "hidden";
    	document.getElementById("Welkomdiv").filters.revealTrans.play();}
		else{
        document.getElementById("Welkomdiv").style.visibility = "hidden";}
        }