function popup(page){
  window.open(page,'popup','width=610, height= 320,toolbar=false,scrollbars=yes');
}

function verification(){
  if(document.contact.name_contact.value == "")  {
    alert("Enter your name please");
    document.contact.name_contact.focus();
    return false;
  }
  else
  if(document.contact.mail_contact.value == "") {
    alert("Enter your e-mail please");
    document.contact.mail_contact.focus();
    return false;
  }
  else
  if(document.contact.mail_contact.value.indexOf('@') == -1) {
    alert("This is not a correct e-mail adresse");
    document.contact.mail_contact.focus();
    return false;
  }
  else
  if(document.contact.comment_contact.value == "") {
    alert("Please enter a comment.");
    document.contact.comment_contact.focus();
    return false;
  }
  return true;
}


$(document).ready(function(){

  $("#detailJassEn").click(function(){
    window.location="../jass.html";
  });
  $("#detailJassFr").click(function(){
    window.location="../jass.html?fr";
  });
  $("#detailJassDe").click(function(){
    window.location="../jass.html?de";
  });
  $("#detailVerbsIt").click(function(){
    window.location="italianVerbs.html";
  });
  $("#screenS").click(function(){
    $("#info").fadeOut("slow",function(){
      $("#screenShoot").fadeIn("fast");
    });
  });
  $("#screenClosed").click(function(){
    $("#screenShoot").fadeOut("slow",function(){
      $("#info").fadeIn("fast");
    });
  });
  $("#screenNext").click(function(){
    GoNextImage(true)
    });
  $("#screenPrev").click(function(){
    GoNextImage(false)
    });


  $(".switch_thumb").toggle(function(){
    $(this).removeClass("swap");
    $("ul.display").fadeOut("fast", function() {
      $(this).fadeIn("fast").removeClass("thumb_view");
    });
  }, function () {
    $(this).addClass("swap");
    $("ul.display").fadeOut("fast", function() {
      $(this).fadeIn("fast").addClass("thumb_view");
    });
  });

    

  if((navigator.userAgent.match(/iPhone/i))||(navigator.userAgent.match(/iPod/i)))
  {
//TODO que faire si on detecte l'iPhone ou l'iPod?
//    proposer une version addaptée ou modifier sans demander?
}

});


function GoNextImage (nextOrNot){
  
  var imageFull = $(".scrShImg").attr("src") ;
  var imageValues =imageFull.substring(imageFull.lastIndexOf(".image")+6,imageFull.lastIndexOf("."));
  var imageRoot =imageFull.substring(0,imageFull.lastIndexOf(".image")+6);
  var imageEnd =imageFull.substring(imageFull.lastIndexOf("."));
  var imageNo=imageValues.substring(0,imageValues.lastIndexOf("on"));
  var imageNumber=imageValues.substring(imageValues.lastIndexOf("on")+2);
  var nextImage = imageNo;
  nextImage = parseInt(nextImage); //convertit un string en nombre
  if (nextOrNot){nextImage += 1}
  else {nextImage -= 1}
  if (nextImage == 0){nextImage = imageNumber;}
  if (nextImage > imageNumber){nextImage = 1 ;}
  var imageFullNew = imageRoot+nextImage+"on"+imageNumber+imageEnd ;
  //alert(imageFull+ " --> "+imageFullNew)
 // $(".scrShImg").fadeOut("slow", function() {
 //   $(this).attr("src",imageFullNew) ;
 //   $(this).fadeIn("fast");
 // });
$(".scrShImg").attr("src",imageFullNew) ;
}