img1= new Image();
img2= new Image();
img3= new Image();
img4= new Image();
img5= new Image();
img6= new Image();
img7= new Image();
img8= new Image();


img1.src="images/edito.jpg";
img2.src="images/edito_r.jpg";
img3.src="images/guide.jpg";
img4.src="images/guide_r.jpg";
img5.src="images/annexe.jpg";
img6.src="images/annexe_r.jpg";
img7.src="images/auteur.jpg";
img8.src="images/auteur_r.jpg";


function affiche(num){
if(num==1) document.images['edito'].src=img1.src;
else if(num==2) document.images['edito'].src=img2.src;
else if(num==3) document.images['guide'].src=img3.src;
else if(num==4) document.images['guide'].src=img4.src;
else if(num==5) document.images['annexe'].src=img5.src;
else if(num==6) document.images['annexe'].src=img6.src;
else if(num==7) document.images['auteur'].src=img7.src;
else if(num==8) document.images['auteur'].src=img8.src;

}