// JavaScript Document

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

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;
}

var curr_tab_id=null;
function showLayer (lay){
	var s,d,v;
	for(var i=0;i<layers_arr.length;i++){
		if(lay==layers_arr[i]){
			curr_tab_id=i;s="";d="on";v='';
		}else{
			s="hidden";d="off";v='';
			pos=indexInArray(layers_arr,lay);
			if (i == pos-1) {v='1';}
			if (i == 0 && pos >= 2) {v='';}
		}
		document.location.hash=lay;
		//MM_findObj("tab_"+layers_arr[i]).setAttribute('class',s);
		MM_findObj("tab_"+layers_arr[i]).className=s;
		document.getElementById('ctl00_mainContent_pnlGmap').className = 'hidden';
		MM_swapImage('ctl00_mainContent_Tabs1_'+layers_arr[i],'','images/Tabs/Pi_tab_'+layers_arr[i]+'_'+d+v+'.jpg',0);
	}
}

function indexInArray(theArray, theValue)
{
    var arLength = theArray.length;
    for (var i=0; i<arLength;i++)
    {
        if (theArray[i] == theValue)
        {
            return i;
        }
    }
    return -1;
}


function loadLayer(){
	if(document.location.hash){
		showLayer(document.location.hash.substring(1));}
	else{
		showLayer('Omschrijving');}
}

function preloadImages(){
	for(var i=0;i<layers_arr.length;i++){
		MM_preloadImages('images/Pi_tab_'+layers_arr[i]+'_on.jpg','images/Pi_tab_'+layers_arr[i]+'_off.jpg','images/Pi_tab_'+layers_arr[i]+'_off1.jpg')
	}
}

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_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_openBrWindowPic(theURL,winName,features) { //v2.0
  var pic, length, lastindex,rlen,image,naam;
  pic=MM_findObj('ctl00_mainContent_Fotos1_Image1').src;
  length=parseInt(pic.length);
  lastindex=parseInt(pic.lastIndexOf('/'));
  rlen=length-lastindex-1;
  image=Right(pic,rlen);
  naam=Left(image,image.indexOf('.'));
  window.open(theURL+'?pic='+naam,winName,features);
}

function Right(str, n){
    if (n <= 0)
       return "";
    else if (n > String(str).length)
       return str;
    else {
       var iLen = String(str).length;
       return String(str).substring(iLen, iLen - n);
    }
}

function Left(str, n){
	if (n <= 0)
	    return "";
	else if (n > String(str).length)
	    return str;
	else
	    return String(str).substring(0,n);
}