btt = new Array
btt[0] = new Image()
btt[0].src="/img/menu_1a.gif"
btt[1] = new Image()
btt[1].src="/img/menu_2a.gif"
btt[2] = new Image()
btt[2].src="/img/menu_3a.gif"
btt[3] = new Image()
btt[3].src="/img/menu_4a.gif"
btt[4] = new Image()
btt[4].src="/img/menu_5a.gif"

function pic(nn,mm){
newsrc = "/img/menu_"+nn+".gif";
document.images[mm].src = newsrc;
}

function pic1(nn,mm){
if (browser) {
newsrc = "/img/menu"+nn+".gif";
document.images[mm].src = newsrc;
}}