/* Utility functions */
function addEvent(obj, evType, fn) {
  /* adds an eventListener for browsers which support it Written by Scott Andrew */
  if (obj.addEventListener) { obj.addEventListener(evType, fn, true); return true; }
  else if (obj.attachEvent) { var r = obj.attachEvent("on"+evType, fn); return r; }
  else { return false; }
}
function element(id) {
  var e = false;
  if (document.getElementById) { e = document.getElementById(id); }
  else if (document.all) { e = document.all(id); }
  return e;
}
// login
function toPassword(objOldInput) {
	var objNewElement = document.createElement('input');
	objNewElement.setAttribute('type', 'password');
	objNewElement.setAttribute('value', '');
	objNewElement.setAttribute('name', objOldInput.name);
	objNewElement.className = 'text';
	objOldInput.parentNode.replaceChild(objNewElement, objOldInput);
	toPassword.el = objNewElement;
	setTimeout('toPassword.el.focus()',100);
	return true;
}
// menu.js
function hasULchildren(linode) {
	var uls = linode.getElementsByTagName('ul')[0];
	if(uls) return true;
	return false;
}
function efMenu(menuid, menutype) {
	var menudiv = element(menuid);
	var listitems = menudiv.getElementsByTagName('li');
	if(listitems){
		for(var i=0; i<listitems.length; i++){
			var listitem = listitems[i];
			if(hasULchildren(listitem)) {
				listitem.onmouseover = function (e) {
					if (this.firstChild.nodeName.toUpperCase() == 'A') {
						if(this.firstChild.className.indexOf('active') != -1) { this.firstChild.className = 'active mouse'; }
						 else { this.firstChild.className = 'mouse'; }
					}
					for (var i=0; i<this.childNodes.length; i++) {
						var child = this.childNodes[i];
						if (child.nodeName.toUpperCase() == 'UL') { child.style.visibility = 'visible'; }
					}
					return false;
				};
				listitem.onmouseout = function (e) {
					for (var i=0; i<this.childNodes.length; i++) {
						var child = this.childNodes[i];
						if (child.nodeName.toUpperCase() == 'UL') {	child.style.visibility = 'hidden'; }
					}
					if (this.firstChild.nodeName.toUpperCase() == 'A') {
						if(this.firstChild.className.indexOf('active') != -1) { this.firstChild.className = 'active'; }
						else { this.firstChild.className = ''; }
					}
					return false;
				};
			}
		}
	}
	return void(0);
}

/* Better(?) Image cross fader (C)2004 Patrick H. Lauke aka redux */

var	previousImage, currentImage, galleryImages, gallery, galleryId = 'beeldwissel';
function preInit() {
	if ((document.getElementById)&&(gallery=document.getElementById(galleryId))) {
		gallery.style.visibility = "hidden";
		clearTimeout(preInitTimer);
	} else { preInitTimer = setTimeout("preInit()",2); }
}
function fader(imageNumber,opacity) {
	var obj=galleryImages[imageNumber];
	if (obj.style.MozOpacity!=null) { obj.style.MozOpacity = (opacity/100) - .001; }
	else if (obj.style.opacity!=null) { obj.style.opacity = (opacity/100) - .001; }
	else if (obj.style.filter!=null) { obj.style.filter = "alpha(opacity="+opacity+")"; }
}

function fadeInit() {
	if (document.getElementById) { 
		gallery=document.getElementById(galleryId);
		if(gallery){
			galleryImages = gallery.childNodes;
			for(i=0;i<galleryImages.length;i++) {
				galleryImages[i].style.position='absolute';
				//galleryImages[i].style.display='block';
				galleryImages[i].style.top=0;
				galleryImages[i].style.zIndex=0;
				fader(i,0); 
			}
			gallery.style.visibility = 'visible'; 
			currentImage=0; 
			previousImage=galleryImages.length-1;
			opacity=100;
			fader(currentImage,100);
			window.setTimeout("crossfade(100)", 2500); 
			return void(0);
		}
		else { return false; }
	}
	else { return false; }
}

function crossfade(opacity) {
    if (opacity < 101) {
        fader(currentImage,opacity);
        opacity += 5;
        window.setTimeout("crossfade("+opacity+")", 100);
    } else {
        fader(previousImage,0);
        previousImage=currentImage;
        currentImage+=1;
        if (currentImage>=galleryImages.length) { currentImage=0; }
        galleryImages[previousImage].style.zIndex = 0;
        galleryImages[currentImage].style.zIndex = 3;
        opacity=0;
        window.setTimeout("crossfade("+opacity+")", 5000);
    }
}
function showlistitems(){
	
	var listitems = document.getElementById('beeldwissel').childNodes;
	for(var i = 0;i< listitems.length;i++){
		listitems[i].style.display = 'block';
	}	
	
}

/* initialise fader by hiding image object first */
$(document).ready( function() { 
	setTimeout('showlistitems()',6500);	
	addEvent (window,'load',fadeInit);
});