function hideshow(ObjetId,Album,TTphotos)
  {
  var casePhoto;
  var Album;
  var btnPhoto;
  var HideShow;

  if (TTphotos != "")
    {
    for (i=0;i<TTphotos;i++)
      {
      casePhoto = document.getElementById("case_"+Album+"_"+i) ;
      btnPhoto = document.getElementById("btn_"+Album+"_"+i) ;

      casePhoto.style.display = "none" ;
      btnPhoto.style.color = "#000000" ;
      btnPhoto.style.background = "#FFFFFF" ;
      }
    }

  if (Album != "")
    {
    casePhoto = document.getElementById("case_"+Album+"_"+ObjetId) ;
    btnPhoto = document.getElementById("btn_"+Album+"_"+ObjetId) ;

    if (casePhoto.style.display == "none")
      {
      casePhoto.style.display = "" ;
      btnPhoto.style.color = "#FFFFFF" ;
      btnPhoto.style.background = "#000000" ;
      }
    else
      {
      casePhoto.style.display = "none" ;
      btnPhoto.style.color = "#000000" ;
      btnPhoto.style.background = "#FFFFFF" ;
      }
    }
  else
    {
    HideShow = document.getElementById(ObjetId) ;
    if (HideShow.style.display == "none")
      {
      HideShow.style.display = "" ;
      }
    else
      {
      HideShow.style.display = "none" ;
      }
    }
  }
  
function cacher(ObjetId)
  {
  var HideShow;
  HideShow = document.getElementById(ObjetId) ;
  HideShow.style.display = "none" ;
  }
  
function montrer(ObjetId)
  {
  var HideShow;
  HideShow = document.getElementById(ObjetId) ;
  HideShow.style.display = "" ;
  }