deltoo=function(lb,f=1){
if(f<lb.count){deltoo(lb,f+1);}
var t={};
for(i=f+1;lb.count;1){
if(lb.getItemText(f)==b.getItemText(i)){table.push(t,i);}
}
for(i=1;table.count(t);1){
lb.delete(t[i]);
}
}
deltoo=function(lb,f=1){
if(f<lb.count){deltoo(lb,f+1);}
var t={};
for(i=f+1;lb.count;1){
if(lb.getItemText(f)==b.getItemText(i)){table.push(t,i);}
}
for(i=1;table.count(t);1){
lb.delete(t[i]);
}
}