# Functions Called Correctly In A Mortgage Calculator

Oct 13, 2009

I've been trying to write a Javascript Mortgage Calculator for the past day and I believe I've got the structure right, although for some reason my functions must not be operating correctly or are not being called correctly. I'm almost afraid to say that it could be an error in the functions usage within the while loop. This Mortgage Calculator uses the principle of "bisection" to guess at the monthly payment necessary to fulfill the standards of the mortgage in question. This means that the loop is used to consistently halve the value of a guess until the correct monthly payment is guessed. Here is the code:

<script type=text/javascript>
function calcMortgage (amountText, yearsText, interestText) {
// constant definitions
// variable declaration
var amount = Number(amountText);
var years = Number(yearsText);
[Code]...

## Mortgage Calculator Script

Nov 4, 2003

Where could I find a mortgage calculator script I could place on my website? I found a really cool one at www.dave.imarc.net/php free to use but I have a hard time understanding how to install it. I really don't even know what php is.

Could someone maybe guide me out of this programming lingo darkness?

## Creating A Monthly Mortgage Calculator

Oct 12, 2010

I am trying to create a monthly mortgage calculator, I have been able to make it show prompts for Amount of loan; Interest rate; and Term of loan (in months), but it will not display the results. Below is the code I have utilized to get this far.

[Code]....

## Calculator Not Working Correctly - Opens When The User Clicks A Button

Oct 9, 2010

I have a JavaScript calculator, here is the code:

<script type="text/javascript">
var problem=prompt('Enter the operator you wish to use..x,X,+,-,/ are valid..',"");
if (problem=="+")
{
[Code]...

It will open when the page comes up, but how do I put it so that it opens when the user clicks a button?

## Memory Functions On A Calculator?

May 22, 2010

I'm trying to make a calculator in HTML/Javascript but I'm having trouble with the memory buttons. Here is the code:

<html>
<title>Env X Software | Env X Online Calc</title>

[code]....

## Creating Calculator Using AppendDigit And Else If Functions?

Oct 20, 2010

I am new to Java and my teacher goes way too fast in class and am a day behind on this calculator. Our assignment is to make a Calculator using AppendDigit and Else if functions in the java code. Some of my other code in html may be messed up as well. I am just lost so here is the HTML:

Code:
<title>John's Calculator</title>
<style type="text/css">
.rt {text-align:right; font-family: Courier New;}
.numbttn {text-align: center; background-color:
silver; font-family: Courier New; width 4eM;}
body {background-color: silver} .....

And Here is the pathetic Javascript which I have barely started:
Code:
// cal Applet- John Falco- 20 October 2010
function clear TB() {
document.form.kpd.display.value="0";
}
function AppendDigit (x) {
if (x==".") {
if ((!HasDecimal))
}
else {
document.forms.kpd.display.value =
document.forms.kdp.display.value + X;
};

## Functions Are Not Launching When Called / Why Is So?

Jan 11, 2010

I don't know why this won't run. maybe i have the body that calls the function "show_prompt()" and "byebye()" wrong? [code]...

## JQuery :: .each() Functions Not Working Correctly?

Mar 28, 2011

I have a function with the following code:

function saveRecord(){
\$("#weekSheet tbody tr").each(function(){
\$('td').each(function(i,o){

[code]....

## 2 JS Functions Not Firing Correctly (one After The Other) Onclick

Sep 12, 2011

The context: I am trying to fire a Google Analytics Tracking Code, and a Website Optimiser Conversion Script on an Onclick, one after another, before following an external link. It's on an image button. It must work for JS disabled. The Problem: The first one was that the newest browsers were executing the external link before the tags were firing. I added return false; to stop this which it did. This however ignited an old problem I had - being the two scripts just would not fire one after another. The Code:

[Code]....

## Multiple Functions Called With OnClick

Oct 14, 2009

Ok, so basically what I've got is a button which when clicked, "opens" a section of the page. I also need the button to "jump" to this section of the page, because it's below the current content and won't be visible. What I've got so far is ...

Javascript
<script language="javascript">
function toggle() {
var ele = document.getElementById("toggleText");
var text = document.getElementById("displayText");
if(ele.style.display == "block") {
[Code]....

If I put two separate buttons, both functions will work. Basically I need them to be on the same function, not sure how to do that?

## JQuery :: None Of UI Functions Work When Called Inside Object?

Apr 2, 2009

I am using objects in JS and I am trying to add draggable() into a DIV that works when I move the function out of the object context.

Example:

Code:

That does not work. However, if I do this:

Code:

Then it will work... because the draggable() function is not within the object.

I need this to work within the object, because I will have several DIVs associated with objects and I need them to have draggable() in specific cases.

## JQuery :: .hover Functions Not Firing Correctly When Rolled Over Too Quickly?

Jun 22, 2010

I am building a sliding menu with .hover() and I have a series of three functions within handlerIn() and three within handlerOut(). If you quickly run your mouse over and then off of the hover area, without letting the animate() function complete, the handlerOut() functions don't fire correctly.

Here's the page: [URL]

And here's the code for one of the three (all three are the same):
//image sliders
\$('#build-nav').hover(function() {
\$('#build-trans').animate({top:'180px'},{queue:false, duration:300, complete:

[Code]....

## JQuery :: Ready Calling Multiple Functions - The First Function Gets Called But Not The Second?

Oct 3, 2011

I can't seem to get the syntax correct to get this to work. I'm sure it is something simple.I want to call multiple functions inside my document.ready function.The first function gets called but not the second.

function GetSuspectCollection() {
\$.ajax({[code].....

## Calculate Mortgage Payment

Feb 16, 2005

I'm trying to create a mortgage payment calculator in Javascript and am having problems. My algorithm seems correct but it's not giving the right results. Im using this code:

function do_calc_payment(){var term = document.calc_payment.term.value;var rate = document.calc_payment.rate.value;var amount = document.calc_payment.amount.value;var j = rate / (12*100);var m = term * 12;var payment = amount * ( j / (1 - (1 + j) ^ -m))var result = "\$"+Math.round((payment)*1000)/1000;if(isNaN(payment)){document.calc_payment.rate.value="";document.calc_payment.amount.value="";result="Not a Number";}if(payment.length>=15){result="Max Characters";}document.getElementById('new_payment').innerHTML = result;}

## Algorithm To Calculate Mortgage Payments..

Nov 2, 2004

Does anybody know of an algorithm to calculate mortgage payments? e.g.

Amount: 100,000
Interest Rate: 4.5%
Term: 25 Years

Monthly Payments: x

I've looked at other js scripts to do this but it seems alot more involved then I thought, and because they use non descriptive variable names I can't work any of them out..

## Mortgage Calc Adding Extra Decimal Place To Interest Rate

Oct 12, 2009

I have a mortgage calc that is adding an extra decimal place to my interest rate. To see this in action go to: [URL]
Change the interest rate to 7.5
Click Calculate Payment
Click Create Amortization Chart
On the following screen you'll see a recap of your data and the interest rate will now say 7.55. Same thing happens if you enter 6.2. Next screen shows 6.22/. I've attached the html and js files in a zip.

## Getting Nested Functions To Work Within Functions?

Aug 20, 2009

I have written a number of functions designed to return frequency data on 1000 randomly chosen numbers using different math functions for the rounding. I would like to include all of these functions within the wrapper of another function so that only one call is needed to get returns from all of the 'inner' functions. However, while each of the functions works in isolation, the moment I wrap them in another function they stop working. :confused:

The following code is one of the functions 'frequencyWrapperOne' that has been wrapped in the function 'testWrapper'. A call to testWrapper does nothing.

function testWrapper()
{
function frequencyWrapperOne()
{

[Code]....

## Adding Functions To Properties Of Functions?

Apr 23, 2011

\$(something).split(something),this is a function with a function as a property for that function.

## Working On An Mpg Calculator ?

Oct 4, 2009

I am working on an Mpg calculator and I am stuck.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"

I have a mistake when it is suppose to calculate.

## Make A Calculator App?

Mar 25, 2011

I'm trying to make a calculator app; with a few differences. I have a text field with a numberpad below it, I got the numbers to show up in the text field, but am unsure as to how when I hit the enter button - it would store them in a variable?...I am also wondering as to how it would store current value and then allow me to input another value(maybe on the next page) and either subtract or add to it(the first value that is stored).I am also wondering how to get a decimal point in place(need it for currency).

Here is my code:

<html>
<script type = "text/javascript">

[code].....

## Creating A Less Than Or More Than Calculator?

Dec 2, 2011

I have the last assignment that she wants us to do and I had to pull up another assignment that she wanted us to build upon( which is one of those coding without anything advance)

<html>
<title>

[code]....

now she wants us to do max <beta and then name the variables with if a<b and I don't know if I put that in the concatenation or what to name my variables!

## Price Calculator

Jan 4, 2007

I am trying to create a price calculator that automatically calculates the price of custom made picture frame. I got an equation that finds the square area of the frame by multiplying the perimeter (2*length*width) by the thickness (which the user can choose from 1.5", 2" or 3"). Then it multiplies it by a decimal number (0.27 if the frame is 1.5" thick, 0.23 if its 2" thick, and 0.18 if its 3" thick). Then it adds a \$5 custom made fee to the final answer. But when I save it to an html file and load it in Internet Explorer, it doesn't calculate. Code:

## Field Calculator

Jul 26, 2007

I'm having some problems with a calculator that I'm working on and am stumped on a particular situation regarding adding additional script and how it should be written. I've searched the forum and the web and just cant locate a viable solution. Code:

## Basic Calculator

Dec 6, 2003

I know there is a million of them but here's a little calculator script I made just for kicks. Feedback is always appreciated, good or bad.

I think I did a pretty good job of mirroring the windows calculator functionality.

Basic keys are mapped (optionally) to the keyboard.

<html>
<title>Web Calculator</title>
<style type="text/css">
table
{
text-align:center;
background-color:#e5e5c5;
}

.button
{
width:55px;
font-weight:bold;
background-color:lightblue;
color:#333399;
}

.functbut
{
width:55px;
font-weight:bold;
background-color:lightblue;
color:red;
}

.back
{
width:115px;
font-weight:bold;
background-color:lightblue;
color:red;
}

{
color:#333399;
}

#display
{
text-align:right;
}
</style>
<script type="text/javascript">
var find=document.getElementById;
var temp=0;
var total=0;
var which=0;
var m=0;

function Mplus()
{
m=parseFloat(find('display').value) + m;
find('memory1').value="M+*";
}

function Mclear()
{
m=0;
find('memory1').value="M+";
}

function Mrecall()
{
find('display').value=m;
}

function Mreplace()
{
m=find('display').value;
}

function showMe(num)
{
if(temp==0)
{
find('display').value=num;
temp=1;
}
else
{
find('display').value+=num;
}
}

function calcEm(num)
{
str=parseFloat(find('display').value);
if(which==0)
{
total=find('display').value;
temp=0;
which=num;
}
else if(which==1)
{
find('display').value=parseFloat(total)+ str;
total=find('display').value;
which=num;
temp=0;
}
else if(which==2)
{
find('display').value=parseFloat(total) * str;
total=find('display').value;
which=num;
temp=0;
}
else if(which==3)
{
find('display').value=parseFloat(total) / str;
total=find('display').value;
which=num;
temp=0;
}
else if(which==4)
{
find('display').value=parseFloat(total) - str;
total=find('display').value;
which=num;
temp=0;
}

}

function clearAll()
{
find('display').value=0;
which=0;
temp=0;
total=0;
}

function clearDisplay()
{
find('display').value="0"
temp=0;
}

function fractIt()
{
find('display').value=(1) / str;
}

function getPerc()
{
var d=find('display').value=str / 100;
calcEm(0);
}

function backSpace()
{
find('display').value=find('display').value.substring("0",find('display').value.length-1);
}

function getRoot()
{
find('display').value=Math.sqrt(find('display').value);
}

function invertIt()
{
var w=find('display').value.indexOf("-");
if(w==-1)
{
find('display').value="-" + find('display').value
}
else
{
find('display').value=find('display').value.substring("1",find('display').value.length);
}
}

function keyHandler()
{
keys=new Array();
keys=("1");
keys=("2");
keys=("3");
keys=("4");
keys=("5");
keys=("6");
keys=("7");
keys=("8");
keys=("9");
keys=("0");
keys=("equal");
keys=("plus");
keys=("dot");
keys=("minus");
keys=("times");
keys=("divide");
keys=("dot");
keys=("back");
keys=("clear");

kc=window.event.keyCode;

if(keys[kc]!=undefined)
{
cColor('#333399');
setTimeout('cColor("lightblue")',100);
find(keys[kc]).click();
}
return false;
}
function cColor(bcolor)
{
find(keys[kc]).style.background=bcolor;
}

function keyOnOff()
{
var b=find('keychoice').checked
if(b==true)
{
document.onkeydown=keyHandler;
}
else
{
document.onkeydown="";
}
}
function checkHandler()
{
var e=find('keychoice').checked
if(e==false)
{
e=true;
}
else
{
e=false;
}
keyOnOff();
}

</script>
<body>
<table cellspacing="0" border="1">
<tr>
<td colspan="6"><input type="text" size="43" id="display" value="0."></td>
</tr>
<tr>
<td colspan="2"><input type="button" value="Backspace" id="back" class="back" onclick="backSpace()"></td>
<td colspan="2"><input type="button" id="ce" value="CE" class="back" onclick="clearDisplay()"></td>
<td colspan="2"><input type="button" id="clear" value="C" class="back" onclick="clearAll()"></td>
</tr>
<tr>
<td><input type="button" class="functbut" value="MC" onclick="Mclear();"></td>
<td><input type="button" class="button" id="7" value="7" onclick="showMe(&#397;')"></td>
<td><input type="button" class="button" id="8" value="8" onclick="showMe(&#398;')"></td>
<td><input type="button" class="button" id="9" value="9" onclick="showMe(&#399;')"></td>
<td><input type="button" class="functbut" id="divide" value="/" onclick="calcEm(3)"></td>
<td><input type="button" class="button" id="sqrt" value="sqrt" onclick="getRoot();"></td>
</tr>
<tr>
<td><input type="button" class="functbut" value="MR" onclick="Mrecall();"></td>
<td><input type="button" class="button" id="4" value="4" onclick="showMe(&#394;')"></td>
<td><input type="button" class="button" id="5" value="5" onclick="showMe(&#395;')"></td>
<td><input type="button" class="button" id="6" value="6" onclick="showMe(&#396;')"></td>
<td><input type="button" class="functbut" id="times" value="*" onclick="calcEm(2)"></td>
<td><input type="button" class="button" id="perc" value="%" onclick="getPerc()"></td>
</tr>
<tr>
<td><input type="button" class="functbut" value="MS" onclick="Mreplace();"></td>
<td><input type="button" class="button" id="1" value="1" onclick="showMe(&#391;')"></td>
<td><input type="button" class="button" id="2" value="2" onclick="showMe(&#392;')"></td>
<td><input type="button" class="button" id="3" value="3" onclick="showMe(&#393;')"></td>
<td><input type="button" class="functbut" id="minus" value="-" onclick="calcEm(4)"></td>
<td><input type="button" class="button" id="x" value="1/x" onclick="fractIt()"></td>
</tr>
<tr>
<td><input type="button" class="functbut" value="M+" id="memory1" onclick="Mplus();"></td>
<td><input type="button" class="button" id="0" value="0" onclick="showMe(&#390;')"></td>
<td><input type="button" class="button" id="flop" value="+/-" onclick="invertIt()"></td>
<td><input type="button" class="button" id="dot" value="." onclick="showMe(this.value)"></td>
<td><input type="button" class="functbut" id="plus" value="+" onclick="calcEm(1)"></td>
<td><input type="button" class="functbut" id="equal" value="=" onclick="calcEm(0)"></td>
</tr>
<tr>
id="keychoice" onclick="checkHandler();keyOnOff();"></td>
</tr>
</table>

</body>
</html>

Happy Calculating...

## Shipping Calculator

Jan 17, 2006

I'm attempting to create a shopping cart shipping calculator using the total \$ provided by the cart itself (%total%). Basically the script needs to take the %total%, compare it to a bunch of arrays in the javascript, and provide the shipping charge as a percentage of the total. For example:

The cart total ends up being \$15 (or %total%).

The set rates for shipping are:

Standard Shipping
\$1 - \$4.99 : 7.95% (of total)
\$5 - \$9.99 : 9.95%
\$10 - \$19.99 : 11.95%

Overnight Shipping
\$1 - \$4.99 : 9.95% (of total)
\$5 - \$9.99 : 11.95%
\$10 - \$19.99 : 19.95%

Two radio buttons would show the 2 shipping options and the shipping charges like this:
O Standard: \$1.79
O Overnight: \$2.99

## Make Calculator To Be A Pop Up

Feb 19, 2009

I have a simple calculator written using javascript and html. I would like to make it such that when a link to the calculator is clicked, a pop up window with this calculator appears rather than referring a user to anew page.