function GetGovLoan_Max(Year)
{
var value;

if (Year==1)    value =864.83;
if (Year==2) 	value =433.2707;
if (Year==3) 	value =294.2622;
if (Year==4) 	value =224.8074;
if (Year==5) 	value =183.1741;
if (Year==6) 	value =157.5020;
if (Year==7) 	value =137.7493;
if (Year==8) 	value =122.9656;
if (Year==9) 	value =111.4944;
if (Year==10) 	value =102.3418;
if (Year==11) 	value =94.8756;
if (Year==12) 	value =88.6739;
if (Year==13) 	value =83.4449;
if (Year==14) 	value =78.9802;
if (Year==15) 	value =75.1267;
if (Year==16) 	value =71.7697;
if (Year==17) 	value =68.8217;
if (Year==18) 	value =66.2143;
if (Year==19) 	value =63.8937;
if (Year==20) 	value =61.8168;
if (Year==21) 	value =59.9487;
if (Year==22) 	value =58.2609;
if (Year==23) 	value =56.7297;
if (Year==24) 	value =55.3356;
if (Year==25) 	value =54.0619;
if (Year==26) 	value =52.8947;
if (Year==27) 	value =51.8222;
if (Year==28) 	value =50.8341;
if (Year==29) 	value =49.9215;
if (Year==30) 	value =49.0770;

return value
}

function GetComLoan_Max(Year)
{
var value;
if (Year==1) 	value =874.583;
if (Year==2) 	value =438.4900;
if (Year==3)    value =299.4845;
if (Year==4)   	value =230.0665;
if (Year==5) 	value =188.4834;
if (Year==6) 	value =162.4912;
if (Year==7) 	value =142.8003;
if (Year==8) 	value =128.0803;
if (Year==9) 	value =116.6740;
if (Year==10) 	value =107.5872;
if (Year==11) 	value =100.1871;
if (Year==12) 	value =94.0518;
if (Year==13) 	value =88.8893;
if (Year==14) 	value =84.4909;
if (Year==15) 	value =80.7036;
if (Year==16) 	value =77.4127;
if (Year==17) 	value =74.5303;
if (Year==18) 	value =71.9882;
if (Year==19) 	value =69.7325;
if (Year==20) 	value =67.7200;
if (Year==21) 	value =65.9159;
if (Year==22) 	value =64.2915;
if (Year==23) 	value =62.8232;
if (Year==24) 	value =61.4913;
if (Year==25) 	value =60.2793;
if (Year==26) 	value =59.1731;
if (Year==27) 	value =58.1610;
if (Year==28) 	value =57.2325;
if (Year==29) 	value =56.3789;
if (Year==30) 	value =55.5926;

return value
}

function OnMaxLoanCalculate(){
	var myinput = document.forms.max_loans;
	if (myinput.month_income.value=="")
        {
             alert("请输入月收入");
             return;
        }
        else
             if (isNaN(myinput.month_income.value))
             {
                 alert("请输入数字");
		 return;
	     }


	if (myinput.month_deposit.value=="")
        {
             alert("请输入月存款");
             return;
        }
        else
             if (isNaN(myinput.month_deposit.value))
             {
                 alert("请输入数字");
		 return;
	     }

	if (myinput.month_outcome.value=="")
        {
             alert("请输入月支出");
             return;
        }
        else
             if (isNaN(myinput.month_outcome.value))
             {
                 alert("请输入数字");
		 return;
	     }

	if (myinput.back_time.value=="")
        {
             alert("请输入还贷时间");
             return;
        }
        else
             if (isNaN(myinput.back_time.value))
             {
                 alert("请输入数字");
		 return;
	     }

	myinput.back_time.value=parseInt(myinput.back_time.value);
	if (myinput.back_time.value>30)
		myinput.back_time.value=30;
	else
		if (myinput.back_time.value<1)
			myinput.back_time.value=1;

	var availmoney;

	availmoney = myinput.month_income.value
	            -myinput.month_outcome.value
	            -myinput.month_deposit.value;
	if (availmoney<0)
	{
		alert("您输入的月收入、月存款、月支出有问题");
		return;
	}

	var myValue;

	if (myinput.buy_mode[0].checked)
		myValue=GetGovLoan_Max(myinput.back_time.value);
	else
		myValue=GetComLoan_Max(myinput.back_time.value);

	myinput.max_loan.value = availmoney*10000/myValue;
	if (myinput.buy_mode[0].checked)
	{
		if ( parseInt(myinput.max_loan.value) > 100000)
		  myinput.max_loan.value = 100000;
	}
	else
	{
//		if ( parseInt(myinput.max_loan.value) > 500000)
//		  myinput.max_loan.value = 500000;
	}
	myinput.max_loan.value = parseInt(myinput.max_loan.value*100)/100;
}