function displayUne(num) {
    var photo = document.getElementById("photo");
    var titre_chaine = document.getElementById("titre_chaine");
    var lien_photo = document.getElementById("lien_photo");
    var lien_titre_article = document.getElementById("lien_titre_article");
    
    for(i=1; i<=total_thumb; i++)
        disableThumb(i);
    
    enableThumb(num);
                
    photo.src = blocUne[num]["photo"];
    //titre_chaine.style.color = blocUne[num]["couleur_chaine"];
    titre_chaine.style.borderColor = blocUne[num]["couleur_chaine"];
    titre_chaine.innerHTML = blocUne[num]["titre_chaine"];
    lien_photo.href = Remplace(blocUne[num]["lien_article"], "&amp;", "&");
    lien_titre_article.href = Remplace(blocUne[num]["lien_article"], "&amp;", "&");
    lien_titre_article.innerHTML = blocUne[num]["titre_article"];
    
    thumb_selected = num;
}

function enableThumb(num) {
    thumb = document.getElementById("photo_thumb_"+num);
    thumb.className = "photo_thumb_on";
}

function disableThumb(num) {
    thumb = document.getElementById("photo_thumb_"+num);
    thumb.className = "photo_thumb_off";
}

function initBlocUne() {
    alea = Math.ceil(Math.random()*total_thumb);
    displayUne(alea);
    thumb_selected = alea;
}

function rotationBlocUne() {
    new_num = thumb_selected + 1;
    if(new_num > total_thumb)
        new_num = 1;
    displayUne(new_num);
}

function litBloc(bool) {
    if(bool) {
        clearInterval(rotation);
    } else {
        rotation = setInterval("rotationBlocUne()",3000);
    }
}

function Remplace(str,find,rep){
  var reg = new RegExp(find,"gi")
  return(str.replace(reg,rep));
}
// -->