// JavaScript Document
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_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];}
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}


function MM_changeProp(objName,x,theProp,theValue) { //v6.0
  var obj = MM_findObj(objName);
  if (obj && (theProp.indexOf("style.")==-1 || obj.style)){
    if (theValue == true || theValue == false)
      eval("obj."+theProp+"="+theValue);
    else eval("obj."+theProp+"='"+theValue+"'");
  }
}

function MM_setTextOfLayer(objName,x,newText) { //v4.01
  if ((obj=MM_findObj(objName))!=null) with (obj)
    if (document.layers) {document.write(unescape(newText)); document.close();}
    else innerHTML = unescape(newText);
}


function isEmail(who) {
	function isEmpty(who) {
		var testArr=who.split("");
		if(testArr.length==0)
			return true;
		var toggle=0;
		for(var i=0; i<testArr.length; i++) {
			if(testArr[i]==" ") {
				toggle=1;
				break;
			}
		}
		if(toggle)
			return true;
		return false;
	}

	function isValid(who) {
		var invalidChars=new Array("~","!","@","#","$","%","^","&","*","(",")","+","=","[","]",":",";",",","\"","'","|","{","}","\\","/","<",">","?");
		var testArr=who.split("");
		for(var i=0; i<testArr.length; i++) {
			for(var j=0; j<invalidChars.length; j++) {
				if(testArr[i]==invalidChars[j]) {
					return false;
				}
			}
		}
		return true;
	}

	function isfl(who) {
		var invalidChars=new Array("-","_",".");
		var testArr=who.split("");
		which=0;
		for(var i=0; i<2; i++) {
			for(var j=0; j<invalidChars.length; j++) {
				if(testArr[which]==invalidChars[j]) {
					return false;
				}
			}
			which=testArr.length-1;
		}
		return true;
	}

	function isDomain(who) {
		var invalidChars=new Array("-","_",".");
		var testArr=who.split("");
		if(testArr.length<2||testArr.length>4) {
			return false;
		}
		for(var i=0; i<testArr.length; i++) {
			for(var j=0; j<invalidChars.length; j++) {
				if(testArr[i]==invalidChars[j]) {
					return false;
				}
			}
		}
		return true;
	}


	var testArr=who.split("@");
	if(testArr.length<=1||testArr.length>2) {
		return false;
	}
	else {
		if(isValid(testArr[0])&&isfl(testArr[0])&&isValid(testArr[1])) {
			if(!isEmpty(testArr[testArr.length-1])&&!isEmpty(testArr[0])) {
				var testArr2=testArr[testArr.length-1].split(".");
				if(testArr2.length>=2) {
					var toggle=1;
					for(var i=0; i<testArr2.length; i++) {
						if(isEmpty(testArr2[i])||!isfl(testArr2[i])) {
							toggle=0;
							break;
						}
					}
					if(toggle&&isDomain(testArr2[testArr2.length-1]))
						return true;
					return false;
				}
				return false;
			}
		}
	}
}
function TryAgain(ctrl, str) {
	alert(str);
	ctrl.focus();
	return;
}


function versturen(welke) {
alert(welke);
if (welke=="newsletter"){		
	ctrl = newsletter.name;
	if(!(ctrl.value)) {
		TryAgain(ctrl, "Don't forget to fill in your name!");
		return false;}	
	
	ctrl = newsletter.emailadres;
	if(!isEmail(ctrl.value) ) {
		TryAgain(ctrl, "Don't forget to fill in a valid E-mailadres");
		return false;}	
	
}
		
			
}

function navigatie(welke,status){
	//alert (welke);
	if (status=="on"){document.getElementById(welke).src= "./images/navigatie/" + welke + "_f2.jpg";}
	if (status=="off"){document.getElementById(welke).src= "./images/navigatie/" + welke + ".jpg";}
}

function opacity(id, opacStart, opacEnd, millisec) {
    //speed for each frame
    var speed = Math.round(millisec / 100);
    var timer = 0;

    //determine the direction for the blending, if start and end are the same nothing happens
    if(opacStart > opacEnd) {
        for(i = opacStart; i >= opacEnd; i--) {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    } else if(opacStart < opacEnd) {
        for(i = opacStart; i <= opacEnd; i++)
            {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    }
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
	//alert('ja');
}

function Color(id,color){
	document.getElementById(id).style.background=color;
} 

function Enlarge(src,nr){
	document.getElementById("nr").value = nr;
	document.getElementById("aanduiding").value = parseInt(nr) + 1;
	document.getElementById("totaal").value = GalleryImages.length-1;
	document.getElementById("Gallery").style.top= 290;
	document.getElementById("Gallery").style.left= 108;
	document.getElementById("GalleryImage").src="upload/media/03_large/" + src;
} 

function CloseGallery(){
	document.getElementById("Gallery").style.top=-1000;
	document.getElementById("GalleryImage").src="./images/spacer.gif";
}

function Volgende(){
	welke= parseInt(document.getElementById("nr").value)+1;
	document.getElementById("nr").value = parseInt(document.getElementById("nr").value) + 1;
	if(welke>=GalleryImages.length-1){welke=0;document.getElementById("nr").value=welke;}
	document.getElementById("aanduiding").value = welke + 1;
	document.getElementById("totaal").value = GalleryImages.length-1;
	document.getElementById("GalleryImage").src="upload/media/03_large/" + GalleryImages[welke];
}
function Vorige(){
	welke=parseInt(document.getElementById("nr").value)-1;
	document.getElementById("nr").value = parseInt(document.getElementById("nr").value) - 1;
	//alert(welke);
	if(welke<0){welke=GalleryImages.length-2;document.getElementById("nr").value=welke;}
	document.getElementById("aanduiding").value = welke + 1;
	document.getElementById("totaal").value = GalleryImages.length-1;
	//alert(welke);
	document.getElementById("GalleryImage").src="upload/media/03_large/" + GalleryImages[welke];
}