var nr = 0; var oldnr = 10;
var maxbuttons = 10;
var picover = new Array(maxbuttons);
var pic = new Array(maxbuttons+1);
for (i=0; i < maxbuttons; i++) {
picover[i] = new Image(); picover[i].src = "gfx/tcr/image"+i+"_1.png";
pic[i] = new Image(); pic[i].src = "gfx/tcr/image"+i+"_0.png";
}
pic[10] = new Image(); pic[10].src = "gfx/tcr/filler.png";

function rollover(nr) {document['butt'+nr].src = picover[nr].src;}
function rollout(nr) { if (nr!=oldnr) {document['butt'+nr].src = pic[nr].src;}}
function clickbutt(nr) {
document['butt'+oldnr].src = pic[oldnr].src; 
document['butt'+nr].src = picover[nr].src;
oldnr = nr;
}