Calculate While I Type
Jun 29, 2006
I believe that this has been answered somewhere but I cannot find it. I have 51 textboxes on page. In 50 I can enter value. 51st should tell me what is average of entered numbers.
As user types I want script to iterate trough form count and sum non-empty fields and than divides this two numbers.I need to sum values from fields that have value (not emty fields) and to divide this number by number of non empty fields. This should occur on every change in any of those 50 textboxes so to have live preview of average.
I'm really new to JS and I don't know even how to sum these numbers.
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Feb 22, 2010
I need to add an event for all elements that are not text entry.I have tried this
$(':not(input:text, input:textarea)')
$(':not(:text, :textarea)')
I tried to get it to work for just not type=text
$(':not(:text)')
$(':not(input:text)')
I can't seem to figure it out.
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May 23, 2011
I have to change text input type to password input type and i am using jquery script. This script work for FF, Chrome and Safari browser but not worked on ie7, ie8.
Script is as:-
How can i update my script, so that it works cross the browser.
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Sep 22, 2004
I want to add onto my ebay auction a calculation which would show the unit price of a box of 5 electrical sockets.
So say it is currently on auction at £5.62 and I charge £1.99 Postage & packing thats a total of £7.61 with a unit price of £1.52. Then £1.52 is the figure I want to output and show on screen.
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Nov 20, 2002
I'm just starting out in JS and would like to know how to solve this.
I have an HTML form with 3 checkboxes, like a would-be order form. For example, on checkbox 1, the product is a toy car that costs $5.00, second box is a cigar cutter for $50, etc. I to have a button that when clicked, enters the total price (no taxes or subtotals) into a textbox field below in the same page.
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Mar 6, 2010
I have some data thats in a number, lets say 5455
.
Id like to get the TAX from an input, say like 2.5 percent. code...
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Jul 9, 2010
I want to calculate X and Y of a div, but I get an infinite loop, can you tell me please what's the problem with my code? code...
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May 9, 2010
I built 2 steps script - in the first page the visitor choose the date he want to schedual his appoitment and his location:
PHP Code:
<select name='zone'>
<option value='-4' selected> USA - EST</option>
<option value='-7'>USA - PST</option>
[code]....
In the second page he need to choose the time he want for his appointment (the time is in GMT+3 -> my local time). in this page the script also get the time zone and the date that he choose in the previous page (using POST - PHP). the date saved in variable. I used unix time (MKTIME function) I want that every time my visitor choose time (from drop-down box) a new cell/DIV will appear with his local time.for example - when he choose date: 10 May 2010, time zone: Austrlia - East Coast (+8 Hours) and time 22:00, New DIV will appear with the date "11 May 2010, 03:00AM" (there are 5 hours different).what is the JS what caculate and show the visitor local time?(I have, in PHP, only his time zone and the date that he coose in the first page)
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Apr 11, 2010
I have tried many time to make the calculation to appear at the total text box.
here is my coding..
<html>
<head>
<title>
PRESENTATION EVALUATION FORM
[Code]....
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Apr 8, 2011
I'm working on creating a custom calculator to determine the amount of money / credits users may earn from referrals. I've tested onChange, and it will work only when I have changed to a new field or clicked off that field. How do I make this calculate live?
So if the current value is 5 and I change it to 6, it will automatically recalculate the new value.
You can see what I'm working on here:
[URL]
Note: The one I'm testing is the 1st Level field. For now i'm just having it display the date.
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Feb 15, 2007
Can someone explain to me how I should code to calculate this?
I want to let the user add 4 different numbers (this is done) and then I want to + these numbers with each other.
This is the code I got: var medel = tal1+tal2+tal3+tal4 ;
Let say the user enters 1+2+3+4. Then the result should be 10. But I get this number as result: 1234
What have I done wrong?
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Jul 26, 2011
I am making what I call a PM (Preventive Maintenance) Kit list. My users will use this list to generate a printable sheet to tell me what they used out of there kit. The list includes pricing per part and I would like the list to calculate the costing as they enter each item. So a total per line and an overall total cost.
I have included a snap shot of the page and below is the code. I can do this sort of thing on a small scale with just adding two lines but I am not sure how to modify it to handle this scale. You can see the script towards the bottom of the page. That is my lame attempt to make the per line costing happen but NOTHING happens.
<?php
require "../config/bpts_config.php";
// Start the session
//session_start();
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
<html>
[Code]...
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Mar 31, 2009
This is my coding that I try but I still cannot get the function to calculate cgpa.
<script language="Javascript" type="text/javascript">
/*Gred*/
function DisplayGred (GredPair) {
var Gred = GredPair.split('|');
var jam_kredit = document.getElementById('jam_kredit').value; (user input pay amount student pay for course)
document.getElementById('pointer').value = Gred[1]; (display course fee when item is selected)
}
function CalculateCGPA () .....
This is the interface look alike, the code subject, subject name and credit hours are retrive from the database, so how to calculate it?
</p>
<form id="form1" name="form1" method="post" action="">
<table width="552" height="82" border="0" class="tborder">
<tr bgcolor="#006699" class="text2">
<td width="17" bgcolor="#000099"><div align="center" class="style3"><strong><font size="2">Bil</font></strong></div></td> .....
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May 13, 2005
I want to have 1 option box with values 10 100 1000 10000 etc in it , then i want to be able to select eg 100 and underneath it will show 100x25 which would be 2,500 so i want 1 box that has values of ten , hundred , thousand etc and they multiply by 25 and show underneath .
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Jul 19, 2011
I have 3 textbox controls on my web page that are numeric currency fields in which a user can enter a numeric value, either positive or negative into TB1 and TB2 (both of these fields go thru edit checks to make sure a numeric value is entered and then return a currency value ie; $2500.00). TB3 is calculated resulting in TB3 = TB1 (($6500)) - TB2 ($2500).
My problem is that if a user enters a negative value for TB1, it returns a "NaN" and the value in TB3 turns out to be the same value as in TB2. Essentialy the calulation ends up being 0 - 2500 = 2500 (see screenshot). I've attached 2 functions below.
Code:
function cal_Overage_Shortage() {
if (make2Number("TB_LowPoint") <= 0) {
document.getElementById("TB_OverageShortage").value = GetValueTextbox("TB_LowPoint") + GetValueTextbox("TB_RequestedLowPoint");
[Code]....
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Apr 28, 2009
Using this formula for parts per million, can somebody please show a SIMPLE example of how to calculate all formulas for ppm?i tried everything..like in kilograms, etc...anyway, the link:[URL]
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Jul 23, 2005
For my website i would like to display the age of my son in years,
months, days and hours.
For now i manage to get a result for totals. Like the total number of
days.
This is the beginning:
starttime = Date.parse("Aug 10,2003, 07:07")
sdt = new Date(starttime)
starttime= Math.ceil((starttime) / 1000 / 60 / 60 / 24 )
ndt = new Date()
y = sdt.getYear()
m = sdt.getMonth() + 1
d = sdt.getDate()
h = starttime
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Oct 6, 2010
automatically calculate a total. The script pulls a price, which is given from a database to a hidden form field. Then once the quantity is changed the bottom form field automatically updates the price. Here's my script if someone could possibly point out why this might not be working (or is my logic flawed.)
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Shopping Cart</title>
<script type="text/javascript">
/* <![CDATA[ */
function calcTotal(){
[Code]...
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Mar 24, 2009
i have a problem with the arrays.i have entered all the relevant arrays to calculate a list of cheap quotations but when clicking on the submit button it doesnt do nothing.when clicking on the submit button i want it to bring up the list of quotations based on the data entered in the form..
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May 9, 2010
Please can u help? how would i get the total work hours between two times (8:30 to 5:30) from a web form.I tried just minusing one from the orther but it came back with "Nan"
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Jul 7, 2010
writing a function that will dynamically calculate filed values.I have a PHP-generated form which may have a varying number of fields. I need to:
1. calculate the line total for each row -- unitprice * units = linetotal
2. calculate total of all linetotals.
I have named my fields as follows:
unitprice[1], unitprice[2]... , units[1], units[2], ...
I have the following calculate function:
function calculateOld() {
// get both values
unitprice = document.forms["invoice"].unitprice.value;[code].....
This does calculate what I need but only if I have up to two rows. I need to make the function dynamically count how many rows there are, and calculate the linetotal for each row. And here's where my limited JS knowledge brings me to a halt.I have been thinking about what this new and dynamic function should look like, but that's the best I could produce...
function calculate() {
var unitprice[i]= document.forms["invoice"].unitprice[i].value;
var units[i]= document.forms["invoice"].units[i].value;[code]....
how things are done, don't just give me the code.
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Oct 15, 2010
I can get the number of contributers to add up but not the total amount of dollars they contributed. I am not sure if my function is wrong or if I am just confused with what variable to output for the dollar amount total.
[Code]...
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Nov 23, 2010
I am trying to calculate age based on the date of birth input into a text field.
the date field should allow users to enter a one or two digit month, one or two digit date and a two or four digit year. Users should be able to enter any of the following date formats: 11-2-10, 1-25-2010, or 01/25/2010. On some days it works and others it wont, like 11-1-91 returns that the user is under 18.
function checkAge(){
var stDate = document.getElementById("birth").value;
var dayPartToDate = parseInt(stDate.substring(0,2),10);
var monPartToDate = parseInt(stDate.substring(3,5),10);
[Code]....
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Jan 26, 2011
I have tried to work on this code for the last 2 weeks, can not figure out what is wrong with my code,please have a look for me, it will greatly appreciated from me; here my details;I work on <script type="text/javascript" language="javascript"> from dreamweaver:)to set my code to calculate, different Fiji tour (4 options, choose 1 in options)Payment (4 options, choose 1 in options)The cost of tour - discount base on tour cost. (discount has 4 different calculate)Need to be alert if they not choose 1 in each type.Second cost if they choose to fly out , will cost plus $400 on top the above cost. This is an optional, so they don;t need to buy if they want.I have attached my code, please have a look,
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Mar 5, 2011
Calculating the difference between two dates in JavaScript is relatively straightforward, provided you choose the right Date methods to work with. Whichever way you get there. code...
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Apr 12, 2011
I want to calculate the percentage of a number, but I'm getting a really weird result. In the following code f is equal to 3 and x.length is equal to 8. The part that isn't working is emphasised in bold. Basically 3/8 * 100 should result in 37.5 but the result I am getting with the following code is 7934570.3125. How do you calculate this percentage in Javascript?
function displaymember()
{
var m = 1;
[code]...
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