function diapo_txt(nom){
window.document.getElementById('photo').src="images/"+nom+".jpg";
}
function diapo_idee(nom){
window.document.getElementById('photo1').src="images/diapo-idees/big/"+nom+".jpg";
}
function diapo_sav(nom){
window.document.getElementById('photo2').src="images/diapo-sav/big/"+nom+".jpg";
}