function emptyLightbox(){
	var cell = document.getElementById("lightfotos");
	if ( cell.hasChildNodes() )
	{
		while ( cell.childNodes.length >= 1 )
		{
			cell.removeChild( cell.firstChild );       
		} 
	}

}
function makeLink(id, ref, rel, titel){
	  var newLink=document.createElement('a');
	  newLink.setAttribute('id',id);
	  newLink.setAttribute('href',ref);
	  newLink.setAttribute('rel',rel);
	  newLink.setAttribute('title',titel);
	
	  document.getElementById('lightfotos').appendChild(newLink);
}

function GroupDelegate(id) {
	var objLink = document.getElementById(id);
	Lightbox.prototype.start(objLink);
}
	
	
/*

* CONFIG

*/

var override = true; //true als alert, prompt and confirm overschreven mogen worden
var maxShine = 60; //de maximum doorzichtigheid van de shine
var framespeed = 600;//speed for each frame in the fade effect

/*
* ACTUAL CODE
*/

function opacity(id, inout, max, callback) {
    var max = max || 100;
    var speed = Math.round(window.framespeed / 100);
    var timer = 0;

    if(inout=="out") {
        for(i = max; i > 0; i--){

            setTimeout("changeOpac(" + i + ",'" + id + "', "+ callback +")",(timer * speed));

            timer++;

        }

    } else if(inout=="in") {
        for(i = 0; i <= max; i++){
            setTimeout("changeOpac(" + i + ",'" + id + "', "+ callback +")",(timer * speed));
            timer++;
        }
    }
}

 

//change the opacity for different browsers

function changeOpac(opacity, id, callback) {
    if(document.getElementById(id))
    {
        var object = document.getElementById(id).style;
        object.opacity = (opacity / 100);
        object.MozOpacity = (opacity / 100);
        object.KhtmlOpacity = (opacity / 100);
        object.filter = "alpha(opacity=" + opacity + ")";
       
        if(opacity == 1)
        {
            if(typeof callback == 'function') {
              	callback();
            } 
        }
    }
}

 
function getWindowHeight() {

  var windowHeight = 0;       

  if (typeof(window.innerHeight) == 'number')
    windowHeight = window.innerHeight;      
  else {
    if (document.documentElement && document.documentElement.clientHeight)
      windowHeight = document.documentElement.clientHeight;             

    else {
      if (document.body && document.body.clientHeight)
        windowHeight = document.body.clientHeight; }; };
  return windowHeight;

};

 

function getWindowWidth() {

  var windowHeight = 0;

  if (typeof(window.innerWidth) == 'number')
    windowWidth = window.innerWidth;  
  else {                        

    if (document.documentElement && document.documentElement.clientWidth)

      windowWidth = document.documentElement.clientWidth;              

    else {

      if (document.body && document.body.clientWidth)

        windowWidth = document.body.clientWidth; }; };                                           

  return windowWidth;

};

 

function createWindow(id)
{

    if(!document.getElementById(id))
    {
		
		if(!document.getElementById('overlay'))
		{
    	var overlay = document.createElement('div');
		overlay.className = 'overlay';
		overlay.id = 'overlay';
		}else{
				overlay=document.getElementById('overlay')
		}

        var windowDiv = document.createElement('div');
		
		if(id.search("STAF")>-1){
			windowDiv.className = 'STAFwindow';
		}else{
			windowDiv.className = 'window';
		}
		
		
		windowDiv.id = id;

            

            var closeButton = document.createElement('button');

            closeButton.className = 'close';

            closeButton.innerHTML = 'Sluit';

                        

            windowDiv.innerHTML = id;

            windowDiv.appendChild(closeButton);

            overlay.appendChild(windowDiv);

      

        document.body.appendChild(overlay);

    }

  

    //create shine

    if(document.getElementById('oldShine')) //reuze existing shine

    {
changeOpac(0, 'oldShine');
            document.getElementById('oldShine').id = 'shine';

    }

    else

    {

            var shine = document.createElement('div');

            shine.id = 'shine';

            document.body.appendChild(shine)

    }

    

    opacity('shine', 'in', window.maxShine);

    

    //hoogte en breedte krijgen van window

    var windowheight = getWindowHeight()

    var windowwidth = getWindowWidth()

    

    //hoogte en breedte krijgen van element

    var elementheight = document.getElementById(id).offsetHeight;

    var elementwidth = document.getElementById(id).offsetWidth;

    

    //blok verticaal centeren

    document.getElementById(id).style.marginTop = "50px";

 

    //corrections for IE
    if(document.all)
    {

        document.getElementById('shine').style.height = windowheight;

        document.getElementById('shine').style.width = windowwidth;

            document.getElementById(id).style.marginLeft = (windowwidth/2 - elementwidth/2) + "px";
			
            if(window.IE6) //disable selectboxes for IE 6
            {

                var nodes = document.getElementsByTagName('select');

                for(var i=0; i < nodes.length; i++){
                        nodes[i].disabled = 'disabled';
                }

                //enable selects in the window
                var nodes = document.getElementById(id).getElementsByTagName('select');
				
                for(var i=0; i < nodes.length; i++){
                        nodes[i].disabled = null;
                }
            }
    }
	
    //enable all close buttons, inputs and links
    var nodes = document.getElementById(id).getElementsByTagName('*');
    for(var i=0; i < nodes.length; i++)
    {
            if(nodes[i].className == 'close')
            {
                nodes[i].onclick  = closeWindow;
            }
    }

    //window tonen
    document.getElementById(id).parentNode.style.top= "0px";
    document.getElementById(id).parentNode.onclick = closeShimWindow;
    globalActiveModalWindow = id;
}

 

function closeShimWindow(e)
{

    var event = e || window.event;
    var target = event.target ? event.target : event.srcElement;

    if(target.className == 'overlay')
    {
    	closeWindow();
    }

}

 

function closeWindow(){
	//alert('hallo');
	//var windowbleh=document.getElementId(globalActiveModalWindow).getElementsByTagName('*');
	//var windowbleh2 = windowbleh[0]..getElementsByTagName('*');
	
   
	
	
	document.getElementById(globalActiveModalWindow).parentNode.style.top= "-10000px";
    document.getElementById('shine').id = 'oldShine';
	
	
	 var d = document.getElementById("overlay");
		//var olddiv = document.getElementById(globalActiveModalWindow);
		//d.removeChild(olddiv);
  
  while(d.hasChildNodes()){
	d.removeChild(d.lastChild);
}
	
	
	
    opacity('shine', 'out', window.maxShine, function(){ //define callback
		
        document.getElementById(globalActiveModalWindow).parentNode.style.top= "-10000px";
		
        document.getElementById('shine').id = 'oldShine'
		
		
        
        if(window.IE6) //enable selectboxes for IE 6
        {
            //enable selects in the body
            var nodes = document.getElementsByTagName('select');
            for(var i=0; i < nodes.length; i++)
            {
                nodes[i].disabled = null;
            }
        }
		
		
    });
    return false;//in case of a link
}
	if(override){
	
		window.alert = function(id){
		createWindow(id);
		override=false;
	}
}