const ntotal=28;
const ngrps=2;
const wd=[230,250,200,250,180,220,180,250,200,200,180,250,250,250,250,250,200,270,180,180];
const ctt=[];
for(i=0;i<ntotal;i++) ctt[i]="";
const lf=[753,137,487,474,827,465,810,444,179,160,160,756,462,147,156,731,816,435,778,469];
const tp=[1331,1248,301,1552,1517,1097,636,1361,371,1465,45,1123,598,783,1007,914,56,80,360,810];
const grpoff=[600,0];