function sub1on(o) {o.className=='sub1of'?o.className='sub1on': o.className=o.className;}
function sub1of(o) {o.className=='sub1on'?o.className='sub1of': o.className=o.className;}
function sub2on(o) {o.className=='sub2of'?o.className='sub2on': o.className=o.className;}
function sub2of(o) {o.className=='sub2on'?o.className='sub2of': o.className=o.className;}
function lukk() {sub1of(sub1); sub2of(sub2);}