T
Totti
Hi all, first of all i am not sure if it is proper to paste a code on
the news group, if it is not please forgive this time and just tell me
that it is not a proper way to solve problems!
My problem bears in a code i ve written as an excercise on javascript
that i m learning myself for the last 4 weeks or so, i am trying to
make a form that can calculate a loan, there are plenty of them on the
internet but i wanted to make one myself here is its code(i am pasting
the code so one can check it)
------------------------
<html>
<head>
<title>My Loan Calculator</title>
</head>
<body onload ="alert('Welcome to My Loan Calculator')";>
<script language="javascript">
function checkall()
{
var radio = -1;
if (document.MyForm.FirstName.value == "")
{ alert("Please enter your First Name.");
document.MyForm.FirstName.focus();
}
else if (document.MyForm.LastName.value == "")
{ alert("Please enter your Last Name.");
document.MyForm.LastName.focus();
}
else if (document.MyForm.income.value == "")
{alert("Please select an income range");
document.MyForm.income.focus();
}
else if (document.MyForm.age.value == "")
{alert("Please an Age range");
document.MyForm.age.focus();
}
else if (document.MyForm.amount.value == "")
{alert("Please check the Amount interval for empty or invalid
data");
document.MyForm.amount.focus();
}
else if (document.MyForm.interest.value == "")
{alert("Please check the Interest rate interval for empty or invalid
data");
document.MyForm.interest.focus();
}
else if (document.MyForm.years.value == "")
{alert("Please select the number of years");
document.MyForm.years.focus();
}
else
{ for (i=0; i<document.MyForm.marital.length; i++)
{ if (document.MyForm.marital.checked == true)
{radio=i;}
}
if (radio == -1)
{alert("Please select your Marital status");}
}
if (radio != -1)
{
var trows = document.getElementById('person').rows;
var row1 = trows[0].cells;
row1[2].innerHTML = 'Your First Name is:
'+document.MyForm.FirstName.value;
var row2 = trows[1].cells;
row2[2].innerHTML = 'Your Last Name is:
'+document.MyForm.LastName.value;
var row3 = trows[2].cells;
row3[2].innerHTML = 'Your Income Range is:
'+document.MyForm.income.value;
var row4 = trows[3].cells;
row4[2].innerHTML = 'Your Age is:
'+document.MyForm.age.value;
var row8 = trows[7].cells;
row8[2].innerHTML = 'Your Marital is:
'+document.MyForm.marital[radio].value;
<!-->It is Stopping here<-->
var interest1 = (document.MyForm.interest.value / 1200);
var payment = (12 * document.MyForm.years.value);
var x = (Math.pow((1 + interest1), payment));
var perMonth = ((amount * x * interest1)/(x-1));
var row5 = trows[4].cells;
row5[2].innerHTML = 'Your Monthly Payment is:
'+document.MyForm.round(perMonth).value;
var row6 = trows[5].cells;
row6[2].innerHTML = 'Your Total Interest is :
'+document.MyForm.ceil(perMonth * payment).value;
var row7 = trows[6].cells;
row7[2].innerHTML = 'You Total Payment is :
'+document.MyForm.ceil((perMonth * payment) - amount).value;
}
}
function round(x)
{
return Math.round(x*100)/100;
}
function ceil(x)
{
return Math.ceil(x);
}
</script>
<form name="MyForm" method="get" >
<table width= 75% height = 75% border="3" id="person">
<tr>
<td width = 15%>First Name:</td>
<td width = 15%>
<input type="text" name="FirstName" >
</td>
<td width=70%>Your First Name is: </td>
</tr>
<tr>
<td>Last name:</td>
<td>
<input type="text" name="LastName">
</td>
<td>Your Last Name is: </td>
</tr>
<tr>
<TD>Select your annual income range :</TD>
<TD>
<select name="income" size="5" >
<option value="0 - 10000"> 0 - 10000
<option value="10001 - 20000"> 10001 - 20000
<option value="20001 - 30000"> 20001 - 30000
<option value="30001 - 40000"> 30001 - 40000
<option value="40001 - 50000"> 40001 - 50000
<option value="50001 - 60000"> 50001 - 60000
<option value="60001 - 70000"> 60001 - 70000
<option value="70001 - 80000"> 70001 - 80000
<option value="80001 - 90000"> 80001 - 90000
<option value="90001 - 100000"> 90001 - 100000
<option value="100001 - UP"> 100001 - UP
</select>
<td>Your Income Range is: </td></TD>
</TR>
<tr>
<td>Age:</td>
<td>
<select name="age" size=2>
<option value="18-25">18-25</option>
<option value="26-35">26-35</option>
<option value="36-50">36-50</option>
<option value="51 and Older">51 and Older</option>
</select>
</td>
<td>Your Age is: </td>
</tr>
<tr>
<TD>Amount in $ :</TD>
<TD><input type="text" name="amount" size="15" >
<TD>Your Monthly Payment is :</TD>
</TD>
</TR>
<TR>
<TD>Interest in % :</TD>
<TD><input type="text" name="interest" size="15" >
<TD>Your Total Payment is :</TD>
</TD>
</TR>
<TR>
<TD>Years :</TD>
<TD>
<select name="years" size="3" >
<option value=1> 1
<option value=2> 2
<option value=3> 3
<option value=4> 4
<option value=5> 5
<option value=6> 6
<option value=7> 7
<option value=8> 8
<option value=9> 9
<option value=10> 10
<option value=11> 11
<option value=12> 12
<option value=13> 13
<option value=14> 14
<option value=15> 15
<option value=16> 16
<option value=17> 17
<option value=18> 18
<option value=19> 19
<option value=20> 20
<option value=21> 21
<option value=22> 22
<option value=23> 23
<option value=24> 24
<option value=25> 25
</select>
<TD>Your Total Interest is :</TD>
</TD>
</TR>
<tr>
<td>Marital Status:</td>
<td>
<input type="radio" name="marital" value="single" > Single
<br>
<input type="radio" name="marital" value="married" > Married
<br>
<input type="radio" name="marital" value="divorced">
Divorced
<br>
<input type="radio" name="marital" value="Widowed"> Widowed
</td>
<td>Your Marital is: </td>
</tr>
</table>
<p>
<TR>
<TD colspan="2" bgcolor = black align = center>
<input type="button" value="Compute" onClick="checkall();">
<input type=reset value="Clear Fields" name=reset >
<input type="button" value="Help"
onClick="window.location.href='help.html'">
</TD>
</TR>
</p>
</form>
</body>
</html>
-------------------------------------------------------------------------
Here is the problem, after the user enters everything she is asked to,
the script is supposed to calculate few things and print them out with
the other fields. I am sure my calculations are correct because i ve
tried calculating with simple java. therefore the problem is not in
the calculations actually it is stopping where i ve put a note, (<!--
missing something but i dont know what is it. would anybody please
help me after checking the code ? what am i doing wrong . thanks in
advance
the news group, if it is not please forgive this time and just tell me
that it is not a proper way to solve problems!
My problem bears in a code i ve written as an excercise on javascript
that i m learning myself for the last 4 weeks or so, i am trying to
make a form that can calculate a loan, there are plenty of them on the
internet but i wanted to make one myself here is its code(i am pasting
the code so one can check it)
------------------------
<html>
<head>
<title>My Loan Calculator</title>
</head>
<body onload ="alert('Welcome to My Loan Calculator')";>
<script language="javascript">
function checkall()
{
var radio = -1;
if (document.MyForm.FirstName.value == "")
{ alert("Please enter your First Name.");
document.MyForm.FirstName.focus();
}
else if (document.MyForm.LastName.value == "")
{ alert("Please enter your Last Name.");
document.MyForm.LastName.focus();
}
else if (document.MyForm.income.value == "")
{alert("Please select an income range");
document.MyForm.income.focus();
}
else if (document.MyForm.age.value == "")
{alert("Please an Age range");
document.MyForm.age.focus();
}
else if (document.MyForm.amount.value == "")
{alert("Please check the Amount interval for empty or invalid
data");
document.MyForm.amount.focus();
}
else if (document.MyForm.interest.value == "")
{alert("Please check the Interest rate interval for empty or invalid
data");
document.MyForm.interest.focus();
}
else if (document.MyForm.years.value == "")
{alert("Please select the number of years");
document.MyForm.years.focus();
}
else
{ for (i=0; i<document.MyForm.marital.length; i++)
{ if (document.MyForm.marital.checked == true)
{radio=i;}
}
if (radio == -1)
{alert("Please select your Marital status");}
}
if (radio != -1)
{
var trows = document.getElementById('person').rows;
var row1 = trows[0].cells;
row1[2].innerHTML = 'Your First Name is:
'+document.MyForm.FirstName.value;
var row2 = trows[1].cells;
row2[2].innerHTML = 'Your Last Name is:
'+document.MyForm.LastName.value;
var row3 = trows[2].cells;
row3[2].innerHTML = 'Your Income Range is:
'+document.MyForm.income.value;
var row4 = trows[3].cells;
row4[2].innerHTML = 'Your Age is:
'+document.MyForm.age.value;
var row8 = trows[7].cells;
row8[2].innerHTML = 'Your Marital is:
'+document.MyForm.marital[radio].value;
<!-->It is Stopping here<-->
var interest1 = (document.MyForm.interest.value / 1200);
var payment = (12 * document.MyForm.years.value);
var x = (Math.pow((1 + interest1), payment));
var perMonth = ((amount * x * interest1)/(x-1));
var row5 = trows[4].cells;
row5[2].innerHTML = 'Your Monthly Payment is:
'+document.MyForm.round(perMonth).value;
var row6 = trows[5].cells;
row6[2].innerHTML = 'Your Total Interest is :
'+document.MyForm.ceil(perMonth * payment).value;
var row7 = trows[6].cells;
row7[2].innerHTML = 'You Total Payment is :
'+document.MyForm.ceil((perMonth * payment) - amount).value;
}
}
function round(x)
{
return Math.round(x*100)/100;
}
function ceil(x)
{
return Math.ceil(x);
}
</script>
<form name="MyForm" method="get" >
<table width= 75% height = 75% border="3" id="person">
<tr>
<td width = 15%>First Name:</td>
<td width = 15%>
<input type="text" name="FirstName" >
</td>
<td width=70%>Your First Name is: </td>
</tr>
<tr>
<td>Last name:</td>
<td>
<input type="text" name="LastName">
</td>
<td>Your Last Name is: </td>
</tr>
<tr>
<TD>Select your annual income range :</TD>
<TD>
<select name="income" size="5" >
<option value="0 - 10000"> 0 - 10000
<option value="10001 - 20000"> 10001 - 20000
<option value="20001 - 30000"> 20001 - 30000
<option value="30001 - 40000"> 30001 - 40000
<option value="40001 - 50000"> 40001 - 50000
<option value="50001 - 60000"> 50001 - 60000
<option value="60001 - 70000"> 60001 - 70000
<option value="70001 - 80000"> 70001 - 80000
<option value="80001 - 90000"> 80001 - 90000
<option value="90001 - 100000"> 90001 - 100000
<option value="100001 - UP"> 100001 - UP
</select>
<td>Your Income Range is: </td></TD>
</TR>
<tr>
<td>Age:</td>
<td>
<select name="age" size=2>
<option value="18-25">18-25</option>
<option value="26-35">26-35</option>
<option value="36-50">36-50</option>
<option value="51 and Older">51 and Older</option>
</select>
</td>
<td>Your Age is: </td>
</tr>
<tr>
<TD>Amount in $ :</TD>
<TD><input type="text" name="amount" size="15" >
<TD>Your Monthly Payment is :</TD>
</TD>
</TR>
<TR>
<TD>Interest in % :</TD>
<TD><input type="text" name="interest" size="15" >
<TD>Your Total Payment is :</TD>
</TD>
</TR>
<TR>
<TD>Years :</TD>
<TD>
<select name="years" size="3" >
<option value=1> 1
<option value=2> 2
<option value=3> 3
<option value=4> 4
<option value=5> 5
<option value=6> 6
<option value=7> 7
<option value=8> 8
<option value=9> 9
<option value=10> 10
<option value=11> 11
<option value=12> 12
<option value=13> 13
<option value=14> 14
<option value=15> 15
<option value=16> 16
<option value=17> 17
<option value=18> 18
<option value=19> 19
<option value=20> 20
<option value=21> 21
<option value=22> 22
<option value=23> 23
<option value=24> 24
<option value=25> 25
</select>
<TD>Your Total Interest is :</TD>
</TD>
</TR>
<tr>
<td>Marital Status:</td>
<td>
<input type="radio" name="marital" value="single" > Single
<br>
<input type="radio" name="marital" value="married" > Married
<br>
<input type="radio" name="marital" value="divorced">
Divorced
<br>
<input type="radio" name="marital" value="Widowed"> Widowed
</td>
<td>Your Marital is: </td>
</tr>
</table>
<p>
<TR>
<TD colspan="2" bgcolor = black align = center>
<input type="button" value="Compute" onClick="checkall();">
<input type=reset value="Clear Fields" name=reset >
<input type="button" value="Help"
onClick="window.location.href='help.html'">
</TD>
</TR>
</p>
</form>
</body>
</html>
-------------------------------------------------------------------------
Here is the problem, after the user enters everything she is asked to,
the script is supposed to calculate few things and print them out with
the other fields. I am sure my calculations are correct because i ve
tried calculating with simple java. therefore the problem is not in
the calculations actually it is stopping where i ve put a note, (<!--
) i ve been working on it a day and a half without success i know i m
missing something but i dont know what is it. would anybody please
help me after checking the code ? what am i doing wrong . thanks in
advance