function sizeHandler(){
//alert(screen.height);
if(document.body.clientHeight<140){
			document.getElementById('content').style.height = "1px";
			return false;
		}

if (navigator.userAgent.indexOf("MSIE") != -1){
	if(screen.height < 769){
	if(document.body.clientHeight>140){
			document.getElementById('content').style.height = (document.body.clientHeight-150) + "px";
		}
	}else{
			document.getElementById('content').style.height = "498px";
		}
	}else{
		if(screen.height < 769){
	if(document.body.clientHeight>140){
			document.getElementById('content').style.height = (document.body.clientHeight-148) + "px";
		}
	}else{
			document.getElementById('content').style.height = "498px";
		}
	}
}

function positioneer(){
//	var breedte = document.getElementById('Foto').width + 50;
//	var hoogte = document.getElementById('Foto').height + 150;
	var breedte = screen.width;
	var hoogte = screen.height;
	window.moveTo(0,0);
	window.resizeTo(breedte,hoogte);
}

function toonLayer(Laag,Button){
	var object1 = document.getElementById ("FotoKader");
	var object2 = document.getElementById ("TekstKader");
	var object3 = document.getElementById ("Buttons");
	var fotoObject;
	var tekstObject;
	var buttonsObject;

 for (var teller = 0; teller < object1.childNodes.length; teller ++)
	{
		fotoObject = object1.childNodes[teller];
		if (fotoObject.tagName == "IMG")
		{
			fotoObject.style.display = fotoObject.id == Laag ? "inline" : "none";
		}
	}

	  for (var teller = 0; teller < object2.childNodes.length; teller ++)
	{
		tekstObject = object2.childNodes[teller];
		if (tekstObject.tagName == "DIV")
		{
			tekstObject.style.display = tekstObject.id == Laag ? "inline" : "none";
		}
	}
}


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_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

var hlbtn = null;
var activebtn = null;
var myImages = new Array();
var myOnBtns = new Array();
var myOffBtns = new Array();

function preloadImages(letter,num)
{
	for( i=1; i<=num; i++ )
	{
		myImages[i] = new Image();
		myImages[i].src = 'images/popups/'+letter+i+'.jpg';

		myOnBtns[i] = new Image();
		myOnBtns[i].src = 'images/popups/'+i+'_on.gif';

		myOffBtns[i] = new Image();
		myOffBtns[i].src = 'images/popups/'+i+'_off.gif';
	}
}

function highlightButton(obj)
{
	if( obj == activebtn )
		return;

	if( hlbtn != null && hlbtn != activebtn )
		hlbtn.src = hlbtn.src.replace(/_on/,'_off');

	hlbtn = obj;

	id = obj.id.charAt(3 );
	obj.src = myOnBtns[id].src;

}

function dehighlightButton(obj)
{
	if( obj == activebtn )
		return;

	if( hlbtn != null && hlbtn != activebtn )
	{
		id = hlbtn.id.charAt(3 );
		hlbtn.src = myOffBtns[id].src;
	}

	id = obj.id.charAt(3 );
	obj.src = myOffBtns[id].src;
}

function selectButton(obj)
{
	if( activebtn != null )
	{
		id = activebtn.id.charAt(3 );
		activebtn.src = myOffBtns[id].src;
		document.getElementById('text'+id).style.display = 'none';
	}

	activebtn = obj;
	id = obj.id.charAt(3 );
	obj.src = myOnBtns[id].src;
	document.getElementById('text'+id).style.display = 'inline';

	document.getElementById('foto').src = myImages[id].src;

}