JavaScript - New To Programming A Script Writing In Need Of Assistance Plz

I am trying to create a form where you are able to calculate what a total car cost would be based on a 6.25% of the CarAmount. Then I would like to be able to add $125 that with is TitleProcess and then $99 to that which is the LicenseFee. Right now I have not been able to get the tax to work on this code. If someone could get this all to work that would be great, or else even if you program your own code.

Thank you so much!

<form action="POST" name="myform">
<table border="1" bgcolor="#006666">
<tr>
<td align="center" colspan="2">
<script
language="JavaScript"><!--
function CarLoanCalculator()
{
form = document.myform
CarAmount= form.CarAmount.value

DownPayment= "0"
AnnualInterestRate = 625/100
TitleProcess= 125
MonthRate=AnnualInterestRate/12
NumPayments=TitleProcess*12
Prin=CarAmount-DownPayment

MonthPayment=Math.floor((CarAmount*AnnualInterestRate)+TitleProcess))
form.NumberOfPayments.value=NumPayments
form.MonthlyPayment.value=MonthPayment
}
// --></script>
<font color="#FFFFFF"
size="2" face="arial narrow"><b>Car Loan Calculator</b> <br>
Enter Your Details &amp; Click the Calculate Button</font></td>
</tr>
<tr>
<td>
<table border="0" cellpadding="2">
<tr>
<td align="right"><font color="#FFFFFF"
size="2" face="arial narrow">Car Loan Amount $ </font></td>
<td><font color="#FFFFFF" size="2"
face="arial narrow">
<input type="text"
size="10" name="CarAmount" value=""
onBlur="CarLoanCalculator()" onChange="CarLoanCalculator()">
<br>
</font></td>
</tr>
<tr>
<td align="right"><font color="#FFFFFF"
size="2" face="arial narrow">Annual Interest Rate </font></td>
<td><font color="#FFFFFF" size="2"
face="arial narrow">
<input type="text"
size="3" name="InterestRate" value="6.25"
onBlur="CarLoanCalculator()" onChange="CarLoanCalculator()">
% <br>
</font></td>
</tr>
<tr>
<td align="right"><font color="#FFFFFF"
size="2" face="arial narrow">Term of Car Loan </font></td>
<td><font color="#FFFFFF" size="2"
face="arial narrow">
<input type="text"
size="3" name="NumberOfTitleProcess" value="125"
onBlur="CarLoanCalculator()" onChange="CarLoanCalculator()">
TitleProcess<br>
</font></td>
<td><font color="#FFFFFF" size="2"
face="arial narrow">
<input type="button"
name="morgcal" value="Calculate"
language="JavaScript" onClick="CarLoanCalculator()">
</font></td>
</tr>
<tr>
<td colspan="3"><font color="#FFFFFF"></font></td>
</tr>
</table>
</td>
</tr>
<tr>
<td>
<table border="0" cellpadding="2">
<tr>
<td align="right"><font color="#FFFFFF"
size="2" face="arial narrow"> Number of Car Payments </font></td>
<td><font color="#FFFFFF" size="2"
face="arial narrow">
<input type="text"
size="7" name="NumberOfPayments">
<br>
</font></td>
</tr>
<tr>
<td align="right"><font color="#FFFFFF"
size="2" face="arial narrow">Monthly Payment $ </font></td>
<td><font color="#FFFFFF" size="2"
face="arial narrow">
<input type="text"
size="7" name="MonthlyPayment">
<br>
</font></td>
</tr>
<tr>
<td align="center" colspan="2">&nbsp;</td>
</tr>
</table>
</td>
</tr>
</table>
<div align="center"></div>
</form>

Hello everyone.

First, if you do not understand something I have tried to explain, PLEASE ask, don't just skip the question! Thank you!

I will start by explaining what I am doing and why I am running into a problem. Perhaps one of you kind people can help me figure out how to fix it.

I have a grid set up for logic puzzle solving. The grid is made up of 3 rows of primary squares, each containing 16 sub-squares.

The top row has 3 primary squares.
the 2nd row has 2 primary squares.
the 3rd row has 1 primary square.
That gives a total of 96 sub-square, or grid coordinates.

Each sub square has an image in it that can be altered by clicking the square. The image begins as a blank gif. With the first click, it becomes an X, with a second click, it becomes an O, and the third click returns it to blank.

With me so far? Hope so!

Now for the tricky part. The grid is made up using a table, with each TD having it's own identifier, as in:
Code:

a1b1 a1b2 a1b3 a1b4 | a1c1 a1c2 a1c3 a1c4 | a1d1 a1d2 a1d3 a1d4
a2b1 a2b2 a2b3 a2b4 | a2c1 a2c2 a2c3 a2c4 | a2d1 a2d2 a2d3 a2d4
a3b1 a3b2 a3b3 a3b4 | a3c1 a3c2 a3c3 a3c4 | a3d1 a3d2 a3d3 a3d4
a4b1 a4b2 a4b3 a4b4 | a4c1 a4c2 a4c3 a4c4 | a4d1 a4d2 a4d3 a4d4
-----------------------------------------
d1b1 d1b2 d1b3 d1b4 | d1c1 d1c2 d1c3 d1c4				
d2b1 d2b2 d2b3 d2b4 | d2c1 d2c2 d2c3 d2c4				
d3b1 d3b2 d3b3 d3b4 | d3c1 d3c2 d3c3 d3c4				
d4b1 d4b2 d4b3 d4b4 | d4c1 d4c2 d4c3 d4c4				
-----------------------------------------
c1b1 c1b2 c1b3 c1b4								
c2b1 c2b2 c2b3 c2b4								
c3b1 c3b2 c3b3 c3b4								
c4b1 c4b2 c4b3 c4b4

Each sub-square also contains the image that is changed, and the image has it's own unique identifier, to go alone with the grid:

Code:

1-0-0 | 1-0-1 | 1-0-2 | 1-0-3 | 1-1-0 |1-1-1 | 1-1-2 | 1-1-3 | 1-2-0 | 1-2-1 | 1-2-2 | 1-2-3 |
----------------------------------------------------------------------------------------------
2-0-0 | 2-0-1 | 2-0-2 | 2-0-3 | 2-1-0 | 2-1-1 | 2-1-2 | 2-1-3 | 2-2-0 | 2-2-1 | 2-2-2 | 2-2-3 |
----------------------------------------------------------------------------------------------
3-0-0 | 3-0-1 | 3-0-2 | 3-0-3 | 3-1-0 | 3-1-1 | 3-1-2 | 3-1-3 | 3-2-0 | 3-2-1 | 3-2-2 | 3-2-3 |
----------------------------------------------------------------------------------------------
4-0-0 | 4-0-1 | 4-0-2 | 4-0-3 | 4-1-0 | 4-1-1 | 4-1-2 | 4-1-3 | 4-2-0 | 4-2-1 | 4-2-2 | 4-2-3 |
-------------------------------------------------------------
5-0-0 | 5-0-1 | 5-0-2 | 5-0-3 | 5-1-0 | 5-1-1 | 5-1-2 | 5-1-3 |
-------------------------------------------------------------
6-0-0 | 6-0-1 | 6-0-2 | 6-0-3 | 6-1-0 | 6-1-1 | 6-1-2 | 6-1-3 |
-------------------------------------------------------------		
7-0-0 | 7-0-1 | 7-0-2 | 7-0-3 | 7-1-0 | 7-1-1 | 7-1-2 | 7-1-3 |
-------------------------------------------------------------
8-0-0 | 8-0-1 | 8-0-2 | 8-0-3 | 8-1-0 | 8-1-1 | 8-1-2 | 8-1-3 |
------------------------------
9-0-0 | 9-0-1 | 9-0-2 | 9-0-3 |							
------------------------------
10-0-0 | 10-0-1 | 10-0-2 | 10-0-3 |							
----------------------------------
11-0-0 | 11-0-1 | 11-0-2 | 11-0-3 |							
----------------------------------
12-0-0 | 12-0-1 | 12-0-2 | 12-0-3 |

Here is a sample of a TD including the image and other ID's:

Code:

<TD style=" border-bottom: 3px solid black;" class="gridoff" onMouseOver="className='gridon';" onMouseOut="className='gridoff';" id="gridtdD4C2">

<DIV align="center">
<IMG src="/testproject/n.gif" height="20" width="20" id="8-1-1" name="D4C2" onClick="flipBox(this);" class="gridbox">
</DIV>

</TD>

As you can see, the image ID is 8-1-1, which if you compare the two tables, is equal to D4C2.

So far, everything is working perfect, as long as I have a grid that is 3x3x4, or, 3 squares across the top, 2 squares in the middles, and 1 square on the bottom, with 16 sub-squares in each.

Now, the problem is, I do not always need a 3x3x4, sometimes I will need a 3x3x5, or a 4x4x4, or a 4x4x5 grid. I have made all the grids, and given them all the right ID's for both the TD, the IMG, as well as the <input> tags.

When I test out a 3x3x5 grid, the first 4 columns in each square work fine, the 5th will only change to an X once, and cannot be changed again.
Similarly, the first 4 rows in each square work, but not the 5th, with the same problem. Again, I have made sure that each of my ID's are correct, so that isn't the issue. The only thing I can figure it would be is the javascript.

So, here it is, the script that does all the changes:

Code:

<SCRIPT LANGUAGE="JavaScript">
function checkDoubles(val) {
// A4C5 = check A4C1, A4C2, A4C3, A4C4, A1C5, A2C5, A3C5, A5C5
	var part1 = val.substr(0,1);
	var part2 = val.substr(1,1);
	var part3 = val.substr(2,1);
	var part4 = val.substr(3,1);
	var part12 = val.substr(0,2);
	var part34 = val.substr(2,2);
	var isdouble = "false";
	// check A4C*		
	for(i=1;i<5;i++) {
		var checkthisbox = part12 + part3 + i;
		if(checkthisbox!=val) {
			if(document.getElementById(checkthisbox).value==3) {
				alert("You can not set more than one box in any row to true at the same time!  If you wish to set this box to true you must first remove the other true statement in this row.");
				var isdouble = "true";
			}
		}
	}	
	// check A*C5		
	for(i=1;i<5;i++) {
		var checkthisbox = part1 + i + part34;
		if(checkthisbox!=val) {
			if(document.getElementById(checkthisbox).value==3) {
				alert("You can not set more than one box in any column to true at the same time!  If you wish to set this box to true you must first remove the other true statement in this column.");
				var isdouble = "true";
			}
		}
	}		
	return isdouble;
}

function flipBox(img) {
	var tmpname;
	if(img.src=="http://localhost/testproject/n.gif") {
		img.src = "http://localhost/testproject/x.gif";
		tmpname = img.name;
		document.mainform.elements[tmpname].value = 1;
		document.getElementById(img.name).value = 1;
	} else if(img.src=="http://localhost/testproject/x.gif") {
		var finaltest = checkDoubles(img.name);
		if(finaltest=="false") {
			img.src = "http://localhost/testproject/o.gif";
			tmpname = img.name;
			document.mainform.elements[tmpname].value = 3;
			document.getElementById(img.name).value = 3;		
		} else {
			img.src = "http://localhost/testproject/n.gif";
		}		
	} else if(img.src=="http://localhost/testproject/o.gif") {
		img.src = "http://localhost/testproject/n.gif";
		tmpname = img.name;
		document.mainform.elements[tmpname].value = 0;
		document.getElementById(img.name).value = 0;		
	}	
	showVals();
}
</SCRIPT>

I know nothing about javascript, so I have no idea why the grid is not working as it should. For some reason, 1-0-0 through 1-0-3 (A1B1 to A1B4) work, but 1-0-4 (A1B5) nor 5-0-4 (which would be A5B5 grid coord).

It makes no sense to me. If you could please look over the script and tell me if you can see why it's letting the original part of the grid to work, but not the additional parts I add?

Thank you!

Yes, I have read the sticky about homework.. and before you call me a lazy sack, I will have to blame it all on my teacher... He knows almost nothing about the Java, and yet, he is teaching a computer programming class...

This assignment is due soon, and I have no idea how you even start this..Really appreciate it if some1 can do this for me..

Assignment: Create a new 'Array' Project and create a java file that does the following.
-Print your arrays going across the screen(horizontally)
-Creating the arrays should be done in main
-All other tasks should be in separate methods
-Your arrays should be passed as a parameters
-All methods should have a void return type

1.a)Create an array of 100 integers called nums. (All 1000 grades will automatically be initialized to 0)
b) Fill the array with 1000 random numbers between 10 and 99.
c) Print the grades forwards
d) Print the grades backwards.
e) Find the average of the grades and print the average

2 a) Create an array of 6 Strings called names (all 6 names will automatically be initialized to null.)
b) Fill your array with 6 names (you will have to do this individually).
c) Print all names that start with a vowel.

Thank to so much if someone really help me with this!

Hi folks. There have been several requests on this forum for subtotal/tax/total forms, but I know so little about Java scripts that I haven't been able to adapt your provided solutions to my needs. I know it seems like a cop-out to just ask someone else to do it for me, but I need to get this form functioning as soon as possible, since I'll be running business through this site (which, until now, I've designed on my own). I would like to learn JS eventually, or at least have a working knowledge of it, but I'm short on time right now.

I know that a Java script should be able to do what I need it to, so if there's anyone out there who can help, I would be incredibly grateful. I hope it's not too much trouble.

Here's the web page. I've kept my html nice and clean, so hopefully it's very easy to read: link

What I need is to multiply the price of either size options by the quantity, add the sales tax and shipping, and the total will update automatically. The paper choice will not affect the price. Ideally, I would like the "submit request" button to send an email with all supplied information to my email address, and also send a copy to the supplied customer address. (I think that's considered a get/put script?) Again, if there's anyone who can help with this, I would be very grateful.

Thanks,
Jon

hey guys "

I have question about writing a java script code equivalent to the following figure :




I've written the code like this ,


<html>
<body>

<script type="text/javascript">
var x;

x = 12;

while (x != 0)
{
document.write(" x = " + x +"<BR>");
x = x - 3;

}
document.write("DONE");

</script>

</body>
</html>


is my answer right or wrong ?? <