var userclick=false;

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];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

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_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'':(v=='hide')?'none':v; }
    obj.display=v; }
}

var curr_tab='Presentatie',curr_tab_id=null;
function showLayer (lay,lc,arr){
	var s,d,v;
	curr_tab=lay;
	for(var i=0;i<arr.length;i++){
		if(lay==arr[i]){
			curr_tab_id=i;s="show";d="_on";
		}
		else{
			s="hide";d="";v="Blue";
		}
		MM_showHideLayers("tab_"+arr[i],'',s);
		MM_swapImage('Pi_blok_nav_'+arr[i],'','/images/'+ lc+'/Pi_blok_nav_'+arr[i]+d+'.jpg',0);
	}
}

function SwapTabImages(){
	var args=SwapTabImages.arguments;
	if(args[1]==1||curr_tab==args[0]){
		MM_swapImage('Pi_blok_nav_'+args[0],'','/images/'+args[2]+'/Pi_blok_nav_'+args[0]+'_on.jpg',0);
	}else{
		MM_swapImage('Pi_blok_nav_'+args[0],'','/images/'+args[2]+'/Pi_blok_nav_'+args[0]+'.jpg',0);
	}
}

function preloadImages(){
	for(var i=0;i<layers_arr1.length;i++){
		MM_preloadImages('/images/Pi_blok_nav_'+layers_arr1[i]+'_on.jpg','/images/Pi_blok_nav_'+layers_arr1[i]+'.jpg')
	}
	for(var i=0;i<layers_arr2.length;i++){
		MM_preloadImages('/images/Pi_blok_nav_'+layers_arr2[i]+'_on.jpg','/images/Pi_blok_nav_'+layers_arr2[i]+'.jpg')
	}
}

function munge(email,text) {
    document.write("<A HREF='mailto:" + email + "'>" + text + "</A>");
}