function HideFrame() {
if(accueil1.style.display=="block") {
   accueil1.style.display="none";
}
else {
   accueil1.style.display="block";
  }
};

Shadowbox.init({
    language: "fr",
    players: ['img','html','iframe'],
    autoDimensions: true
});	

function Shado(url, largeur, hauteur){
    Shadowbox.open({
        content: url,
        player: "iframe",
        width: largeur,
        height: hauteur
    });
};