var menu_on = new Array(5);
var menu_off = new Array(5);
for(a=1; a<6; a++) {
	menu_off[a] = new Image;
	menu_on[a] = new Image;
	menu_off[a].src = "images/w2_bb_"+(a+5)+".gif";
	menu_on[a].src = "images/w2_bb_on_"+(a+5)+".gif";
}

function img_rep(img, menu, state) {
	if(state) document.images[img].src=menu_on[menu].src;
	else document.images[img].src=menu_off[menu].src;
}