/*
	Globals
*/
	var glb_directnaar_classname_show	= "actief";
	var intCurrentNavItem = 0;
	var boolReadyOrNot = true;
	var strPreservedImage = "";
	var objImageID;
	var strCurrentImage = "";
	var strCurrentImageHide = "";
	var objCurrentImageID;
	
	var strCurrentNav = "0";
/*
	startApplication()
	Starts Javascript application
*/
function startApplication() {
	//  Include a stylesheet with styles that are only visible to clients with javascript enabled
	document.write('<link rel="stylesheet" type="text/css" href="/Attica/AtticaWeb.nsf/js_hide.css?OpenPage" />');
	//addEvent(window, 'load', showNav, false);
	addEvent(window, 'load', init, false);
}
/*
	addEvent()
	Adds event-listeners to objects (html-elements)
*/
function addEvent(obj, evType, fn, useCapture){
	var result;
	if (obj.addEventListener){
		obj.addEventListener(evType, fn, useCapture);
		result = true;
	} else if (obj.attachEvent){
		var r = obj.attachEvent('on' + evType, fn);
		result = r;
	} else {
		elm['on' + evType] = fn;
	}
    return result;
}
/*
	init()
	Determine objects with listeners
	N.B. These directly correspond to ID's in HTML page!
*/
function init() {
	if (!document.getElementById) return;
	var directto = document.getElementById('directtoclickzone');
	var uldirectto = document.getElementById('uldirectto');
	if (directto && uldirectto) {
		addEvent(directto, 'click', toggleDirectTo, false);
		addEvent(directto, 'mouseover', function() {clearTODirectTo(uldirectto);}, false);
		addEvent(directto, 'mouseout', function() {hideDirectTo(uldirectto);}, false);
		addEvent(uldirectto, 'mouseout', function() {hideDirectTo(uldirectto);}, false);
		addEvent(uldirectto, 'mouseover', function() {showDirectTo(uldirectto);}, false);
	}
	var directnaar = document.getElementById('directnaar');
	if (directnaar) {
		addEvent(directnaar, 'change', handleDirectTo, false);
		addEvent(directnaar, 'focus', function() {changeDirectTo(glb_directnaar_classname_show);}, false);
		addEvent(directnaar, 'blur', function() {changeDirectTo('');}, false);
	}
	var printpage = document.getElementById('printpage');
	if (printpage) {
		addEvent(printpage, 'click', printPage, false);
	}
	boolReadyOrNot = true;
	
	showNav();
}
/*
	changeDirectTo()
	Change appearance of directNaar select box
*/
function changeDirectTo(classnaam) {
	document.getElementById('directnaar').className = classnaam;
}
/*
	handleDirectTo()
	Redirect client to selected website
*/
function handleDirectTo() {
	var directnaar = document.getElementById('directnaar');
	var selurl = directnaar.options[directnaar.selectedIndex].value;
	if (selurl != "") location.href = selurl;
}
/*
	printPage()
	Prints the current page
*/
function printPage() {
	if (window.print) window.print();
	return false;	
}
/*
	toggleDirectTo()
	Show or hide the direct to link box
*/
function toggleDirectTo() {
	var directto = document.getElementById('uldirectto');
	if (directto.style.display == "block") {
		directto.style.display = "none";
	} else {
		directto.style.display = "block";
	}
}
/*
	hideDirectTo()
	Hide the "direct to" link box
*/
function hideDirectTo(el) {
	if (!el) return;
	el.outTimeout = setTimeout(function() { hideElement(el); }, 300);
}
/*
	hideElement()
	Hide element
*/
function hideElement(el) {
	el.style.display = "none";
}
/*
	showDirectTo()
	Show (open) the "direct to" link box
*/
function showDirectTo(el) {
	if (!el) return;
	clearTimeout(el.outTimeout);
	el.style.display = "block";
}
/*
	clearTODirectTo()
	Clears the time-out of the "direct to" link box
*/
function clearTODirectTo(targetElement) {
	if (!targetElement) return;
	clearTimeout(targetElement.outTimeout);
}
/* 
	Navigation 
*/
function findPosX(obj)
{
	var curleft = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	}
	else if (obj.x)
		curleft += obj.x;
	return curleft;
}
function getLayer(layerName){
  if (document.getElementById){
     return document.getElementById(layerName);
  }
  if (document.all){
     return document.all[layerName];
  }
  if (document.layers){
     return document.layers[layerName];
  }
}
function getStyle(layerName){
  if (document.getElementById){
     return document.getElementById(layerName).style;
  }
  if (document.all){
     return document.all[layerName].style;
  }
  if (document.layers){
     return document.layers[layerName];
  }
}
function getElementPosition(elemID) {
    var offsetTrail = document.getElementById(elemID);
    var offsetLeft = 0;
    var offsetTop = 0;
    while (offsetTrail) {
        offsetLeft += offsetTrail.offsetLeft;
        offsetTop += offsetTrail.offsetTop;
        offsetTrail = offsetTrail.offsetParent;
    }
    if (navigator.userAgent.indexOf("Mac") != -1 && 
        typeof document.body.leftMargin != "undefined") {
        offsetLeft += document.body.leftMargin;
        offsetTop += document.body.topMargin;
    }
    return offsetLeft;
}
function getOffsetX(layerName){
	if (document.layers && document.layers[layerName]) {
        return document.layers[layerName].pageX;
    }
    else if (document.all) {
        return document.all[layerName].offsetLeft;
    }
}
function getOffsetY(layerName){
	if (document.layers && document.layers[layerName]) {
		return document.layers[layerName].pageY;
    }
    else if (document.all) {
        return document.all[layerName].offsetTop;
	}
}
 function findPosX(obj)
  {
    var curleft = 0;
    if(obj.offsetParent)
        while(1) 
        {
          curleft += obj.offsetLeft;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.x)
        curleft += obj.x;
    return curleft;
  }
  function findPosY(obj)
  {
    var curtop = 0;
    if(obj.offsetParent)
        while(1)
        {
          curtop += obj.offsetTop;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.y)
        curtop += obj.y;
    return curtop;
  }
function showLayer(layerName)
{
	if (boolReadyOrNot) {
		for (var i=1; i<=6; i++) hideLayer("subnav" + i);
		if (layerName.substring(0, 6) == "subnav") {
			var intNavOffset = new Array(0,0,25,150,180,290,430);
			intCurrentNavItem = layerName.substring(6, layerName.length);
			getStyle(layerName).visibility="visible";
			getStyle(layerName).left = intNavOffset[intCurrentNavItem] + document.getElementById('main').offsetLeft + 'px';
			if (intCurrentNavItem>0) {
				var mywidth = parseInt(document.body.clientWidth-intNavOffset[intCurrentNavItem]-document.getElementById('main').offsetLeft) +'px';
				//alert(mywidth);
				getStyle(layerName).width = mywidth;
			} else {
				imgRestore();
			}
		}
	}
}
function onResizeNav(e)
{
	if (boolReadyOrNot) {
		if (!e) var e = window.event;
		if (intCurrentNavItem > 0) showLayer("subnav" + intCurrentNavItem);
	}
}
function hideLayer(layerName)
{
  if (boolReadyOrNot) getStyle(layerName).visibility="hidden";
}
function imgPreserve(imageName, objID)
{
	objImageID = objID;
	strPreservedImage = imageName;
	//alert('imgPreserve: ' + strPreservedImage);
}
function imgRestore()
{
	//alert('imgRestore: ' + strPreservedImage);
	if (objImageID) objImageID.src = strPreservedImage;
}
function imgSetCurrentPage(imageName, imageNameHide, objID)
{
	objCurrentImageID = objID;
	strCurrentImage = imageName;
	strCurrentImageHide = imageNameHide;
	//alert('imgPreserve: ' + strPreservedImage);
}
function imgShowCurrentPage()
{
	//alert('imgShowCurrentPage: ' + strCurrentImage);
	if (objCurrentImageID) objCurrentImageID.src = strCurrentImage;
}
function imgHideCurrentPage()
{
	//alert('imgShowCurrentPage: ' + strCurrentImage);
	if (objCurrentImageID) objCurrentImageID.src = strCurrentImageHide;
}
window.onresize = onResizeNav;
function gup( name )
{
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var tmpURL = window.location.href;
  var results = regex.exec( tmpURL );
  if( results == null )
    return "";
  else
    return results[1];
}
function showNav() {
	if (parseInt(gup('nav')) > 0 ) {
		showLayer('subnav'+gup('nav'));
	}
}
/*
	startApplication()
	start javascript application
	Note: Call must be placed at the end of the script file, to be sure that all JS-code is loaded!
*/
startApplication();