function lauchLightBox(){
  

  bw = $("body").css("width");
  bh = $("body").css("height");
  $("#lightbox").css("width",bw);
  $("#lightbox").css("height",bh);
  
  $("input#mailnews").click(function () {
    if($(this).val() == "Saissisez votre mail ici"){
      $(this).val("");
    }                
  });
  
  //$("#lightbox, #lightbox-panel").fadeIn(300);  l'opacité ne marche pas sous ie!!
  $("#lightbox, #lightbox-panel").css("display","block");  
 
  $("a#close-panel").click(function(){  
    $("#lightbox, #lightbox-panel").fadeOut(300);
    $.ajax({
                  type: "POST",
                  url: "/horaire-priere/newsletter.php",
                  data: 'nonews=0'
    });  
  });
  
  $("input#oknews").click(function(){
    var email = $("input#mailnews").val();
    var dataString = 'mailnews=' + email;  
    $.ajax({
                  type: "POST",
                  url: "/horaire-priere/newsletter.php",
                  data: dataString,
                  success: function(result) {
                    if(result!=''){
                      alert(result);
                    }else{
                    $("#lightbox, #lightbox-panel").fadeOut(300);                     
                  }
                }
    });  
  })

    
  
}