# Numbers In A Form

Aug 31, 2003

Another quick question. I have the script to add each field up I need, but if the ending 0 after a decimal is present it doesnt show. How do I keep the leading zero and how do I keep just 2 digits after the decimal?

For example:

1 + 1.50 = 2.50

But javascript displays it as 2.5

Now sometimes when I do math I get:

2.3454545

In this case I just want 2.34. So if there is a ending zero I want to keep it, and if there is more than 2 numbers after the decimal I want to cut the rest off and leave the 2 there.

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## Adding Numbers In A Form?

Dec 2, 2011

I have an HTML form, that's part of a child window,and has two random numbers in it. How can i have it so when user inputs the sum in an empty box in the form, and clicks 'submit' the result is displayed in the main window? Also, it needs to check if answer is correct or wrong and show that in the main window at the same time.

## Add 2 Numbers As The Form Input?

Aug 11, 2009

I am trying to add these 2 numbers as the form input. When I add 5 and 5 it returns 55 instead of 10.

Code:

var a = document.f.children.value;
var b = document.f.totalguest.value;
var c = a+b;

## Adding Numbers That Have Been Entered In A Form

Aug 25, 2011

I have the following code that I wrote myself (except for the function isNumberKey). However, I don't know how to actually add the numbers together. My plan is to store the value entered in the forms as a variable, then manipulate the variables to get my final number. The final number would be stored in variable named Total and would be displayed after Total: at the bottom of my page.

<HTML>

## Validate Zip Code Of Form To Allow Numbers Only

May 27, 2011

This is an assignment I have for a course I am taking. The objective is to validate the zipcode of a form to ensure that it only contains numbers. I cannot get this to work. The teacher wants us to use the for loop to do this, otherwise I would use a different function.
Code:
<!DOCTYPE html>
<html lang="en">
<meta charset="utf-8">
<head> .....

## Check If Textfield Has Numbers Then Submit Form?

Jun 1, 2011

I have a form with a text box where users can enter a 10 digit code. The 10 digit code can be just numbers/letters (eg. 0123456789 or abcdefghij) or it can be a mixture (eg. 0a1b2c3d4e). What I would like is if the user enters a code which is a mixture of numbers and letters then the submit url goes to mixed.php If the user enters a code which just has letters or numbers then the submit url goes to sole.php change the url from selecting radio buttons.

## Form Validation - Check That Only Numbers Entered

Mar 19, 2010

I am using this code to validate a form to check that only numbers have been entered but when I enter alphabets the javascript raises an error but still submits the form.

<script type='text/javascript'>
function isNumeric(elem, helperMsg){
var numericExpression = /^[0-9]+\$/;
if(elem.value.match(numericExpression)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}}
</script>
<form>
Numbers Only: <input type='text' id='numbers' action= "desktop.html"/>
<input type='button'
onclick="isNumeric(document.getElementById('numbers'), 'Numbers Only Please')"
value='Check Field' />
</form>

## Validation For Html Form Adding 2 Numbers?

May 26, 2009

I am trying to create an html form for adding 2 numbers and also trying to validate using java script. what I want is instead of getting an alert msg as a result

I want the result to be displayed in the sum:text box --- not as an alert I want to validate the input fields ,if null -- throw an alert msg

<!DOCTYPE html PUBLIC "-W3CDTD HTML 4.01 TransitionalEN" "http:www.w3.org/TR/html4/loose.dtd">
<html>
<head>

[Code].....

## Validate Numbers Only And Email Format In Contact Form?

Aug 18, 2011

i using for my contact form

[URL]

The above code was copied from a Youtube tutorial about JavaScript.

I would like to ask, what additional code should be added in the existing code in order to validate the numbers only and an email format before the form to be submitted?

## JQuery :: Dynamically Generate Specific Numbers Of Form Input Fields?

Sep 22, 2010

I am not new to jQuery but I just want to ask the best way to approach this. Basically I have a textfield in which the user is going to type in a number (for example 20) and after this textfield lose focus jQuery will be triggered to create whatever number of textfields the user put before (in this case 20).

So, to illustrate: How many users do you have: [ 2 ](and after the field above lose focus, the below will be generated)

Fullname: [ ]
Fullname: [ ]

## Include Numbers And Alphabets Instead Of Numbers Only?

Apr 7, 2009

I need to modify the script showed at: [URL]

Right now it allows entering "numbers only", I need it so that it allows numbers and alphabets only, no special characters or spaces.

And yes, one more question, does the first part of the code need to be added in the <head> of the document or <body> ?

The code at the above URL is as follows:

<script type="text/javascript">
// initialise variable to save cc input string
var cc_number_saved = "";
</script>

[Code].....

## Phone Number Form - Error-check It So That Only Numbers Can Be Entered Into The Phone Number Input Field?

Sep 26, 2011

I am working on a Phone Number Form. The link of script: [url]

Questions:

(1)I wanted to know if code this script so that instead of the phone number appearing as: (123)456-7890

So that it appears as: (123) 456-7890 with a blank space after the ")"

(2)If that's simple, is there a way to error-check it so that only numbers can be entered into the phone number input field?

## JS And Numbers

Nov 26, 2004

I am writing a script and everything works fine, except when I calculate my figure i want to display only 2 decimal points.

ie. 10 = 10.00
ie. 10.56789 = 10.56

I have no idea on how to do this and I cannot use Cold Fusion.

Is there a built in JS Function?

## Strings And Numbers...?

Feb 3, 2006

I'm having difficulties arithmetically manipulating form element values.

I've entered data into the form, and I fetch them using a js, as:

p7Left = Number(document.form1.elements["p7_left"].value);
p7Right = Number(document.form1.elements["p7_right"].value);
...
...
scoreLeft = Number(document.form1.elements["left_score"].value);
scoreRight = Number(document.form1.elements["right_score"].value);

Then I add these as follows:

scoreLeft = Number(scoreLeft + p&Left + ...... +);

This does what I want; without the operator 'Number' I get a concatination
of the various variables (as expected). Is there some way of globally
defining all variables as numbers instead of strings?

## Row Numbers In Firefox

Mar 11, 2006

How do I find the row & column number of the table for a checkbox on
its Onclick event

The following HTML sample works perfect in IE. On click of the
checkboxes, I am displaying the row number and its column number. How
do I manage the same in Firefox? Code:

## Rounding Off Numbers

Jul 20, 2005

Is there a script that will round off a number to a certain number of
decimal places?

## JQuery :: Way To Sum Numbers

Aug 5, 2010

How to sum numbers for example:

29.90 and 10.20?

It should be 40.10 but jquery returns 40.099999999999994

My code...

## Spinner To Contain Numbers Only?

Nov 11, 2011

I have create a spinnrer (numeric up and down field) in my form. Below is the code for it:

Code:
<form action="create_session.php" method="post" name="createsession"> <!-- This will post the form to its own page"-->
<table cellpadding="0" cellspacing="0" border="0">
<tr>[code]............

Now what my question is how can I get the spinner to only allow numbers to be inputted in the spinner and not letters. Also how can I get it to only allow 2 digits to be entered in the spinner?. I know it will require an if statement but I don't know how to do it.

## Add Two Numbers Using Do While Loop?

Sep 15, 2010

i'm trying to achieve is to add two numbers using do while loop. below is the code however result wont show up. i cant seem to determine the error.

<script = "text/javascript">
function myanswer(x,y){
x=parseInt(x);

[code].....

## How To Display The Sum Of The 20 Numbers

Sep 20, 2010

iwant to ask on how to display the sum of the 20 numbers i allready get the everage but i want to display the sum together of the everage this my code..

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

[code]....

## Sorting Numbers

Jun 13, 2007

I am tring to sort some six numbers..the problem is that it doesnt work when
I use "document.getElementById" instead of "document.write()
my program is supposed to write six numbers every second..line by line
Could you get it work ?

<html>
<body>
<script>
setInterval("sortN()",1000);

function sortN()
{
for(var m=1;m<=6;m++)
{
arr[m] = Math.floor(Math.random()*49)+1;
document.getElementById("kut").innerHTML+=arr.sort(sortN)+".."+"<br>";
} }
</script>
<div id="kut"></div>
<input type="button" value="baslat"onclick="sortN()">
</body>
</html>

## Only Numbers - Critical

Sep 18, 2006

Somebody can help me with a function about "only number"?

I need to find a function that doesn't allows the user informs numbers.

## Using Cookies To Add Numbers?

Feb 5, 2010

I'm trying to write a Javascript program that adds numbers by using cookies. Here is my code:

<!DOCTYPE html PUBLIC "-W3CDTD XHTML 1.0 TransitionalEN" "http:www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http:www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

[Code]...

## Sum Of 10 Random Numbers?

Oct 12, 2010

I'm using a forLoop to generate 10 random numbers, how would I go about added them all together? code...

## Join Two Numbers Together?

May 4, 2009

How can you join two numbers together in javascript, like you would join two strings?For example, if you have two variables, with 1 stored in each, how can I join them together, so I get 11, instead of 2?

## Only Allowing Numbers

Jul 24, 2006

iw ant to have a function so that user can only enter numbers in the text box and + ( only once in the beggininging). if user wants to add + he can only enter + once as the first character like +123 or 123 bt cannot enter 1+2 or 123+ or +123+

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