function w_opn(dest,wnam) {
focu = window.open(dest,wnam,'width=640,left=20,top=20,resizable=yes,scrollbars=yes,status=no,toolbar=no,location=no,directories=no'); 
focu.focus() ;
}

function w_pic(dest,wnam) {
focu = window.open(dest,wnam,'width=350,height=285,left=250,top=250,resizable=no,scrollbars=no,status=no,toolbar=no,location=no,directories=no'); 
focu.focus() ;
}

function retour() {
history.go(-1)
}

function disableRightClick(e)
{
  var message = "Click droit désactivé";
  
  if(!document.rightClickDisabled) // initialize
  {
    if(document.layers) 
    {
      document.captureEvents(Event.MOUSEDOWN);
      document.onmousedown = disableRightClick;
    }
    else document.oncontextmenu = disableRightClick;
    return document.rightClickDisabled = true;
  }
  if(document.layers || (document.getElementById && !document.all))
  {
    if (e.which==2||e.which==3)
    {
      alert(message);
      return false;
    }
  }
  else
  {
    alert(message);
    return false;
  }
}
disableRightClick();