/* Sabam Javascript */

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_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_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];}
}

var scrolldiv;
var windowHeight = 0;

function start(){
    scrolldiv = getobj('scrolldiv');
    setHeight();
    
    if(scrolldiv){
        setScrollHeight();
    }
    MM_preloadImages('../images/top_help-a.gif','../images/top_mail-a.gif','../images/top_home-a.gif','../images/top_contact-a.gif','../images/top_print-a.gif','../images/verder-a.png');
    linkAcronyms();
    startSlidingBanners();
}

/* Function to resize content pane - if content is shorter than menu*/

function setHeight(){
    var menuHeight = getobj('navigatiebalk').clientHeight;
    var contentDiv = getobj('tekstvlak');
    var contentHeight = contentDiv.clientHeight;
    
    if(menuHeight > contentHeight){
        contentDiv.style.height = (menuHeight + 20) + 'px';
    }
}

function getobj(id){
    return document.getElementById(id);
}

function setScrollHeight(){
    if(windowHeight != getWindowHeight()){
        var wrapper = getobj('wrapper');
        var tekstvlak = getobj('tekstvlak');
        windowHeight = getWindowHeight();
        
        tekstvlak.className = '';
        scrolldiv.style.height = '';
        scrolldiv.className = '';
        
        var wrapperHeight = wrapper.clientHeight;
        
        if(wrapperHeight > windowHeight){
            scrolldiv.style.height = (scrolldiv.clientHeight - (wrapperHeight - windowHeight) + 0) + 'px';
            scrolldiv.className = 'scrolling';
            tekstvlak.className = 'scrolling';
        }
    }
    
    setTimeout(setScrollHeight, 400);
}

function getWindowHeight(){
    if(window.innerHeight) return window.innerHeight;
    if(document.documentElement.clientHeight) return document.documentElement.clientHeight;
}

function printPage(){
    window.print();
}

function linkAcronyms(){
    /*
    var acronyms = document.getElementsByTagName("ACRONYM");
    var popups = new array(acronyms.length);
    for(var i=0; i<acronyms.length; i++)
    {
        var acronym = acronyms[i];
        var atitle = acronym.title;
        popups[i] = document.createElement("DIV");
        
        popups[i].style.display = "none";
        popups[i].innerHTML = atitle;
        popups[i].className = "abbrPopUp";
        
        acronym.appendChild(popups[i]);
        
        acronym.title = "";
        acronym.onmouseover = function(){
            popups[i].style.display = '';
        }
        
        acronym.onmouseout = function(){
            popups[i].style.display = 'none';
        }
    }
    */
}

/* Foto's */

function showFoto(ctl, imageUrl){
    var parentNode = ctl.parentNode.parentNode.parentNode.parentNode;
    var children = parentNode.childNodes;
    
    for(var i=0; i<children.length; i++){
        if(children[i].className == 'grotefoto'){
            var img = children[i].getElementsByTagName('IMG')[2];
            
            img.src = imageUrl;
        }
    }
}

function scrollLinks(ctl){
    var containingDiv = getScrollControl(ctl);
    
    containingDiv.scrollIndex["idx"] = Math.max(containingDiv.scrollIndex["idx"] - 1, 0);
    containingDiv.style.marginLeft = (containingDiv.scrollIndex["idx"] * 340 * -1) + 'px';
}

function scrollRechts(ctl){
    var containingDiv = getScrollControl(ctl);
    
    containingDiv.scrollIndex["idx"] = Math.min(containingDiv.scrollIndex["idx"] + 1, (containingDiv.childNodes.length - 1));
    containingDiv.style.marginLeft = (containingDiv.scrollIndex["idx"] * 340 * -1) + 'px';
}

function getScrollControl(ctl){
    var parentNode = ctl.parentNode.parentNode;
    var children = parentNode.childNodes;
    
    for(var i=0; i<children.length; i++){
        if(children[i].className == 'kleinefotos'){
            var containingDiv = children[i].firstChild;
            
            if(!containingDiv.scrollIndex){
                containingDiv.scrollIndex = new Object();
                containingDiv.scrollIndex["idx"] = 0;
            }
            
            return containingDiv;
        }
    }
}

/* SlidingBanners */

var delay = 40;
var pixelIncrease = 3;

getSlidingFunction = function(bannerIndex, banners, left, max) {
    return function() {
        var banner = banners[bannerIndex];
        var width = banner.clientWidth;

        left = Math.max(left - pixelIncrease, width * -1);
        banner.style.left = left + "px";
        banner.style.display = '';

        if (left <= (width * -1)) {
            if(bannerIndex == banners.length - 1)
                setUpBanners(banners, max);
        } else {
            window.setTimeout(getSlidingFunction(bannerIndex, banners, left, max), delay);
        }
    }
}

function setUpBanners(banners, max){
    for(var i=0; i<banners.length; i++){
        var banner = banners[i];
        
        banner.style.left = max + 'px';
        banner.style.display = '';
        
        var width = banner.clientWidth;
        var thisDelay = delay + ((width + 150) * (delay / pixelIncrease) * i);
        
        window.setTimeout(getSlidingFunction(i, banners, max - 100, max), thisDelay);
    }
}

function startSlidingBanners() {
    var bannerContainer = document.getElementById('slidingbanners');
    var controlListBanners = bannerContainer.getElementsByTagName('DIV');
    var banners = new Array();
    
    for(var i=0; i<controlListBanners.length; i++){
        if(controlListBanners[i].className == 'slidingbanner')
            banners.push(controlListBanners[i]);
    }
    
    if(banners.length > 0)
        setUpBanners(banners, bannerContainer.clientWidth);
}
/* Google Analytics code */

var _gaq = _gaq || [];
  _gaq.push(['_setAccount', 'UA-17949395-1']);
  _gaq.push(['_trackPageview']);

  (function() {
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
  })();