vbfh57mn=xppr('fh57m_0.gif');vbfh57mo=xppr('fh57m_1.gif');vbfh57mc=xppr('fh57m_2.gif');vbnh57mn=xppr('nh57m_0.gif');vbnh57mo=xppr('nh57m_1.gif');vbnh57mc=xppr('nh57m_2.gif');vbhh57mn=xppr('hh57m_0.gif');vbhh57mo=xppr('hh57m_1.gif');vbhh57mc=xppr('hh57m_2.gif');var btIdPref='vb';function xppr(im){var i=new Image();i.src='nams-bits-row4-files/bt'+im;return i;};function xpe(id){x=id.substring(0,id.length-1);if(document[btIdPref+x])document[btIdPref+x].src=eval(btIdPref+id+'.src');return false;};