function buttonon1() { 
box1.style.background='#D0CA8A';
box2.style.background='#E5E2BD';
box3.style.background='#E5E2BD';
box4.style.background='#E5E2BD';
box5.style.background='#E5E2BD';
box6.style.background='#E5E2BD';
return true;
}

function buttonon2() { 
box2.style.background='#D0CA8A';
box3.style.background='#E5E2BD';
box4.style.background='#E5E2BD';
box5.style.background='#E5E2BD';
box6.style.background='#E5E2BD';
box1.style.background='#E5E2BD';
return true;
}

function buttonon3() { 
box3.style.background='#D0CA8A';
box4.style.background='#E5E2BD';
box5.style.background='#E5E2BD';
box6.style.background='#E5E2BD';
box1.style.background='#E5E2BD';
box2.style.background='#E5E2BD';
return true;
}

function buttonon4() { 
box4.style.background='#D0CA8A';
box5.style.background='#E5E2BD';
box6.style.background='#E5E2BD';
box1.style.background='#E5E2BD';
box2.style.background='#E5E2BD';
box3.style.background='#E5E2BD';
return true;
}

function buttonon5() { 
box5.style.background='#D0CA8A';
box6.style.background='#E5E2BD';
box1.style.background='#E5E2BD';
box2.style.background='#E5E2BD';
box3.style.background='#E5E2BD';
box4.style.background='#E5E2BD';
return true;
}

function buttonon6() { 
box6.style.background='#D0CA8A';
box1.style.background='#E5E2BD';
box2.style.background='#E5E2BD';
box3.style.background='#E5E2BD';
box4.style.background='#E5E2BD';
box5.style.background='#E5E2BD';
return true;
}