vbt3t7sn=xppr('t3t7s_0.gif');vbt3t7so=xppr('t3t7s_1.gif');vbt3t7sc=xppr('t3t7s_2.gif');vbp3t7sn=xppr('p3t7s_0.gif');vbp3t7so=xppr('p3t7s_1.gif');vbp3t7sc=xppr('p3t7s_2.gif');vbo3t7sn=xppr('o3t7s_0.gif');vbo3t7so=xppr('o3t7s_1.gif');vbo3t7sc=xppr('o3t7s_2.gif');vbw3t7sn=xppr('w3t7s_0.gif');vbw3t7so=xppr('w3t7s_1.gif');vbw3t7sc=xppr('w3t7s_2.gif');vb43t7sn=xppr('43t7s_0.gif');vb43t7so=xppr('43t7s_1.gif');vb43t7sc=xppr('43t7s_2.gif');vbz3t7sn=xppr('z3t7s_0.gif');vbz3t7so=xppr('z3t7s_1.gif');vbz3t7sc=xppr('z3t7s_2.gif');vbu3t7sn=xppr('u3t7s_0.gif');vbu3t7so=xppr('u3t7s_1.gif');vbu3t7sc=xppr('u3t7s_2.gif');var btIdPref='vb';function xppr(im){var i=new Image();i.src='index-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;};