vbqpvwtn=xppr('qpvwt_0.gif');vbqpvwto=xppr('qpvwt_1.gif');vbqpvwtc=xppr('qpvwt_2.gif');vbmpvwtn=xppr('mpvwt_0.gif');vbmpvwto=xppr('mpvwt_1.gif');vbmpvwtc=xppr('mpvwt_2.gif');vb5pvwtn=xppr('5pvwt_0.gif');vb5pvwto=xppr('5pvwt_1.gif');vb5pvwtc=xppr('5pvwt_2.gif');vbapvwtn=xppr('apvwt_0.gif');vbapvwto=xppr('apvwt_1.gif');vbapvwtc=xppr('apvwt_2.gif');vbspvwtn=xppr('spvwt_0.gif');vbspvwto=xppr('spvwt_1.gif');vbspvwtc=xppr('spvwt_2.gif');var btIdPref='vb',pressedItem='qpvwt';function xppr(im){var i=new Image();i.src='ust-files/bt'+im;return i;};function xpe(id){x=id.substring(0,id.length-1);xe=id.substring(id.length-1,id.length);if(pressedItem==x&&(xe=='n'||xe=='o'))return;if(xe=='c'){if(pressedItem!=-1)document[btIdPref+pressedItem].src=eval(btIdPref+pressedItem+'n'+'.src');pressedItem=x;};if(document[btIdPref+x])document[btIdPref+x].src=eval(btIdPref+id+'.src');};