//milliseconds
var slideShowSpeed = 4000

//seconds
var crossFadeDuration = 3

//image files
var Pic = new Array() 
Pic[0] = 'images/slideshow/1.jpg'
Pic[1] = 'images/slideshow/2.jpg'
Pic[2] = 'images/slideshow/3.jpg'
Pic[3] = 'images/slideshow/4.jpg'
Pic[4] = 'images/slideshow/5.jpg'
Pic[5] = 'images/slideshow/6.jpg'
Pic[6] = 'images/slideshow/7.jpg'
Pic[7] = 'images/slideshow/8.jpg'
Pic[8] = 'images/slideshow/9.jpg'
Pic[9] = 'images/slideshow/10.jpg'

var t
var j = 0
var p = Pic.length

var preLoad = new Array()
for (i = 0; i < p; i++){
   preLoad[i] = new Image()
   preLoad[i].src = Pic[i]
}

//-----------------------------------------------------------------------------------------

function runSlideShow(){
   if (document.all){
      document.images.SlideShow.style.filter="blendTrans(duration=2)"
      document.images.SlideShow.style.filter="blendTrans(duration=crossFadeDuration)"
      document.images.SlideShow.filters.blendTrans.Apply()      
   }
   document.images.SlideShow.src = preLoad[j].src
   if (document.all){
      document.images.SlideShow.filters.blendTrans.Play()
   }
   j = j + 1
   if (j > (p-1)) j=0
   t = setTimeout('runSlideShow()', slideShowSpeed)
}

//-----------------------------------------------------------------------------------------	

function showDetail(URL, w, h){
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=' + w + ',height=' + h);");
}

//-----------------------------------------------------------------------------------------	

function swapImage(mImg1,mImg2){
  if(document.images)document.images[mImg1].src=mImg2;
}

//-----------------------------------------------------------------------------------------	

function validate_form_nl() {
  validity = true; 
  if (!check_empty(document.form.naam.value))  { validity = false; alert('U heeft geen naam ingevuld!'); }
  if (!check_email(document.form.email.value)) { validity = false; alert('Het e-mail adres is ongeldig!'); }
return validity;
}

function validate_form_en() {
  validity = true; 
  if (!check_empty(document.form.naam.value))  { validity = false; alert('No name!'); }
  if (!check_email(document.form.email.value)) { validity = false; alert('E-mail not valid!'); }
return validity;
}

function validate_form_es() {
  validity = true; 
  if (!check_empty(document.form.naam.value))  { validity = false; alert('El campo nombre no se puede dejar vacío'); }
  if (!check_email(document.form.email.value)) { validity = false; alert('Esta dirección de email no es válida'); }
return validity;
}

function validate_form_du() {
  validity = true; 
  if (!check_empty(document.form.naam.value))  { validity = false; alert('Name nicht ausgefüllt!'); }
  if (!check_email(document.form.email.value)) { validity = false; alert('E-mail nicht korrekt ausgefüllt!'); }
return validity;
}

function check_empty(text) {
  return (text.length > 0); // returns false if empty
}

function check_email(adres) {
  if ((adres == "")
    || (adres.indexOf ('@') == -1)
    || (adres.indexOf ('.') == -1))
      return false;
  return true;
}