function gjjloan1(obj)
{
  var sqje;
  var sqnx;
  gryjce=obj.sqje.value;
  if(gryjce<=0)
  {
    alert('贷款申请金额不能为空,请输入');
    obj.sqje.value='';
    return;
  }
  dknx=math.round(obj.sqnx.value);
  if(dknx<=0)
  {
    alert('贷款申请年限不能为空,请输入');
    obj.sqnx.value='';
    return;
  }
  if(dknx>30)
  {
    alert('贷款申请年限不能大于30年,请重新输入');
    obj.sqnx.value='';
    return;
  }
  hkfs=document.getelementbyid("selects").value;
  var ylv_new=0;
  if (obj.dklv.value==""||number(obj.dklv.value)==0)
  {
    alert("请填写贷款利率");
    return;
  }
  else
  {
    ylv_new=number(obj.dklv.value)/100;
  }
  if(hkfs==1)
  {
    var dknx_new = dknx*12;
    var dked = obj.sqje.value;
    var month_money1 = getmonthmoney1(ylv_new,dked,dknx_new);
    obj.yjhk.value = math.round(month_money1*100)/100;//月均还款额
    var all_total1 = month_money1 * dknx_new;
    obj.bxhj.value = math.round(all_total1*100)/100;//本息合计
  }
  else
  {
    var dknx_new = dknx*12;
    var dked = obj.sqje.value;
    var all_total2 = 0;
    var month_money2 = "";
    for(j=0;j<dknx_new;j++)
    {
      huankuan = getmonthmoney2(ylv_new,dked,dknx_new,j);
      all_total2 += huankuan;
      huankuan = math.round(huankuan*100)/100;
      month_money2 += (j+1) +"月," + huankuan + "(元)\n";
    }
    obj.syhk.value = month_money2;
    obj.bxhj2.value = math.round(all_total2*100)/100;
  }
}
function getmonthmoney1(lilv,total,month)
{
  var lilv_month = lilv / 12;
  return total * lilv_month * math.pow(1 + lilv_month, month) / ( math.pow(1 + lilv_month, month) -1 );
}
function getmonthmoney2(lilv,total,month,cur_month)
{
  var lilv_month = lilv / 12;
  var benjin_money = total/month;
  return (total - benjin_money * cur_month) * lilv_month + benjin_money;
}