function Roll(nav1,nav2,state1,state2) {
 document.images[nav1].src = '/i/b_'+nav1+'_'+state1+'.gif';
 document.images[nav2].src= '/i/q_'+nav2+'_'+state2+'.gif';
}

function mRoll(nav,state) {
 document.images[nav].src = '/i/b_'+nav+'_'+state+'.gif';
}