vbiucotn=xppr('iucot_0.gif');vbiucoto=xppr('iucot_1.gif');vb1ucotn=xppr('1ucot_0.gif');vb1ucoto=xppr('1ucot_1.gif');var btIdPref='vb';function xppr(im){var i=new Image();i.src='http://pinecrestschools.com/thousandoaks/images/pine_buttons-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;};