document.getElementById('sectioncourbe').style.display = "block";
document.getElementById('section_courbe_taille').style.display = "block" ;
document.getElementById('courbe_taille').src = 'data:image/png;base64,'+(image_taille);
document.getElementById('sectioncourbe').style.display = "block";
document.getElementById('section_courbe_taille').style.display = "block" ;
document.getElementById('courbe_taille').src = 'data:image/png;base64,'+(image_taille);