function numberFormat(nvalue,n,k,t) 
{
  nvalue_str = String(Math.round(eval(nvalue)*Math.pow(10,n)));
  nvalue_start = k+nvalue_str.substr(nvalue_str.length-n,n);
  nvalue_start_t = nvalue_str.substr(0,nvalue_str.length-n);
  while (nvalue_start_t.length>3) 
  {
   nvalue_start = t+nvalue_start_t.substr(nvalue_start_t.length-3,3)+nvalue_start;
   nvalue_start_t = nvalue_start_t.substr(0,nvalue_start_t.length-3);
  }
  fvalue = nvalue_start_t+nvalue_start;
  if (fvalue.charAt(0)==k) {fvalue="0"+fvalue;}
  return fvalue;
}