var num = 0 ;

var sb_photo_home_possible = new Array() ;

sb_photo_home_possible[num++] = "cloture" ;
sb_photo_home_possible[num++] = "maison" ;
sb_photo_home_possible[num++] = "neige" ;
sb_photo_home_possible[num++] = "pierres" ;
sb_photo_home_possible[num++] = "route" ;
//sb_photo_home_possible[num++] = "fleur" ; // photo couleur, hors-serie.

var num_aleatoire = Math.floor(Math.random() * num);

var url_photo = "photos_home/" + sb_photo_home_possible[num_aleatoire] + ".jpg" ;

document.write("<img src=\"" + url_photo + "\"  width=\"425\" height=\"480\" border=\"0\"><br>");