var img = new Array();

img[1] = new Image();
img[1].src = "images/rub11-fr.gif"
img[2] = new Image();
img[2].src = "images/rub12-fr.gif"
img[3] = new Image();
img[3].src = "images/rub13-fr.gif"
img[4] = new Image();
img[4].src = "images/rub14-fr.gif"
img[5] = new Image();
img[5].src = "images/rub15-fr.gif"


function image(num,nom){
document[nom].src = img[num].src;
}