i have a form with arrays, I want to sum different arrays and display the total in a array field in the form itself.i have this code
<form>
do {
$x++;
[code]....
I am looking for a push in the right direction for a few problems i am running into; my first problem is I have to create a script element that contains the function amountTotal which should return the sum of all the values in the amount array. There are no parameters for this function, and I have to add the following commands to it.
1. declare a variable named total with an initial value of 0
2. create a for loop thatloops through all of the values in the amount array, at each iteration of the loop, add the current value of the array item to the value of the total variable.
3. and after the for loop is completed, return the value of the total variable.
The amount array has already been created and populated in a list.js file, I had to first create a script element pointing to it.
This is what i had for my link to the list.js file and funtion :
I have my entire code written but i am trying to break it up and fix my problems 1 at a time: when i open the code, it does'nt display correctly ( which is another problem) but I ran the debugger and it says my total is undefined. ( this is in another section of my code), but I guess my function is wrong somewhere.
Say i have 4 text form fileds like this:
|-Quanitity1-|
|-Quanitity2-|
|-Quanitity3-|
|-TotalQuanitity-|
As soon as a user types in an integer into one of the quantity boxes the total quantity gets updated. How exactly would i do this? I can make it update the total quantity after a user hit's a Validate button or any button, but i cant make it update in real time.
I need the value of my drop down box options to contain size information rather than price. However I would like to be able to calculate a price for the items based on what size the user selects as well as the quantity. Below is the code I came up with (which doesn't work obviously)What can I do to get this to work for me?
<head>
<script type="text/javascript">
<!--
[code]....
need urgent help with javascript arrays. I need to store the checked value of the radiobutton into an array and then display the result from that array.I have created an empty array to store the input from the textbox of the form using the JS insert() function and then used show() function to display the result... but I am unable to display which option the user has selected from the radiobutton.if you look at it in the browser, and type in a name in the name textbox and click submit....it displays the result (which was stored in the inputarray) but the radiobutton doesnt work...gives.."undefined" and should give either Male or Female, depending on what the user selects.
View 2 Replies View Relatedis this correct
var mid = math.floor((0 + array.length)/2)
from here you could use array.slice to divide the array into two equal sized arrays?
I have 5 Numeric fields in my from, I am using onkeyup to check for numeric values only, now I have a total field also. I would like to have a sum of the values entered in the 5 fields to be shown automatically on this total field.
View 2 Replies View RelatedI have a issue with a javascript code that I wrote. This script is a simply for calculating the summation of 2 text input boxes and printing it in another text input box within the form. The entire form is then sent using Form post.The total is written back to the form's total text input box using the code below:
document.getElementById ('total').value = total
This code works perfectly for displaying the values on screen. However, when I send the form (PHP Post), the " total " field is empty. I have searched all over for possible solutions. But no solution yet.
1. document.getElementById ('total').INNERHTML = total .This does not even work on screen and total field is not updated on screen. Needless to say, the PHP Post variable was also empty.
I'm very new with Javascript, and I've been inserting a little here and there in some of the web pages I'm developing. but now I'm stuck on something that is probably pretty simple: display the value of a form field at the bottom of the page. I suspect it has something to do with Class and the DOM, but I'm still learning how those are related. Process of events: user enters a number into a form field. a javascript multiplies their entry with another value and displays the result in large type at the bottom of the screen.
View 3 Replies View RelatedWhen I run the following code the script will not display the second id field from the form:
function enCrypt( code ){
var form = document.getElementById( 'myForm' );
document.write(form.cipher.value);
document.write(form.msgcode.value);
} // end function enCrypt
</script>
<form id = "myForm" action = "">
<p>Enter cipher : <input id = "cipher" type = "text" /></p>
<p>Enter message : <input id = "msgcode" type = "text" /></p>
<p>Result : <input id = "result" type = "text" /></p>
<input type = "button" value = "Encrypt"
onclick = "enCrypt()" />
I really hope someone can assist: I am trying to take a form field:
[Code]...
I want to validate a form. In the form is a text field named 'extra[]' where the user inputs a number. The number is what I want to validate.
However, the 'extra[]' field is dynamic and does not always appear in the form.
If it appears, there may be only 1 occurrence of it which means it's then not an array but there may also be multiple occurrences of it.
I have a script that validates (and work as it should) if the 'extra[]' field occurs multiple times and is thereby an array, but I can't figure out how to validate the 'extra[]' if there is only 1 and to not throw an error if it's not there at all. Code:
I am trying to open a window, with a url, and parameter from array form field. Here is the code:
<input type="text" name="parameter[1]" value="1223344"><input type="button" value="Check ID" + document.MainForm.parameter[1].value)">
I am getting that document.MainForm.parameter.1 is null or not an object.
How can I properly make javascript recorgenize the field?
I have an order form where a customer can select a number of artwork prints supplied by different artists and suppliers. The name, price, postage amount and other details for each of the prints are held in a table in a MySQL database. As postage amount may vary between prints and suppliers of the prints we must have the customer select postage per print - not the amount just yes or no. The customer may select as many of these prints as he desires - printa, printb, printc, printd etc. through to printz. Many of the prints are provided by separate individual suppliers and must therefore have postage paid for each ordered print and this is automatically added by the order form. However some prints are provided by the same supplier and only one postage fee needs to be chosen (yes or no), so these are not automatically added and the customer must choose to pay postage on only one of the prints (not all 3 if he orders 3 of them).
So for postage purposes I have a postage code on the table in the MySQL database. For example printa, printb and printc are all supplied by the same supplier so each have a linked postage code of A. Similarly others may also be linked using different postage codes e.g. printx and printy may have a postage code of B. So whenever a customer chooses a print that does not have a linked postage code then the postage fee is automatically selected for him and charged to the total. However where prints are linked to the same postage code we must allow the costomer to select postage (yes or no), but we must force him to select yes or no for at least one of the linked prints.
So to do this I need a javascript validation alert to force the customer to choose yes for postage for at least one of the prints, not necessarily all of them, where they have a linked postage code. To do that I can add the the postage linked code as an array for each print selected to a form hidden field so that my javascript can use the field as follows: <input type="hidden" name="postagearray[]" value="<? echo $postagecode; ?>">
[Code]..
I have a standard HTML form that asks the user for a dollar amount and a payment date. On the same page I want to display some acknowledgement text which displays to the user what they entered above.
For example, lets say the user entered 10.00 as the dollar amount, and 03/01/2011 as the payment date in separate HTML form text fields. Right before the submit button I would like to display to the user "By clicking on the submit button below, I agree to pay $10.00 to Company, Inc. on 03/01/2011".
I'm sure this can be done using jQuery... I'm just having a hard time finding an example.
I have a form with three fields. When the user changes the value of field1, the form displays either field2 or field3. This works fine for NEW records.However, I'm running into a problem when trying to EDIT an existing record. When the form is loaded, I need to test the value of field1 and display either field2 or field3. I've tried using the form onload event, but do not know how to access the value of field1.I'm using Javascript and div tags.This is what I have so far.
<script type="text/javascript">
function hide(obj)
obj1 = document.getElementById(obj);
[code]....
I want to validate an HTML form, that have array filed names. For example
<INPUT TYPE="TEXT" NAME="contact[name]">
<INPUT TYPE="TEXT" NAME="contact[email]">
I need this as a program require contact us form in this format (sunshop).
if(document.formname.contact[name].value.length==0) { alert('You must enter name'); return false; } But not working. Code:
[URL]. Users fill in a form which has items of furniture, so they enter a number next to each item of furniture. The HTML uses text fields. When the form is submitted, the form is submitted to a php script that emails the results to myself. I am trying to also have a javascript function which runs before the php script runs. This javascript works out the cubic footage of all the items. If a user put "3" in the sofa text field, and I have defined that a sofa is 45 cubic feet, then the javascript will multiply 3 * 45. It will do a similar thing for all items of furniture, then add them all up to give a total cubic feet. I want that total field to then sent as a variable to the php script, along with all the other variables.
My code so far (which doesn't work)
<script language="JavaScript">
function calculate(){
var sofa_3_seater = document.getElementById('sofa_3_seater').value*45;
var sofa_2_seater = document.getElementByID('sofa_2_seater').value*30;
var armchair_large = document.getElementByID('armchair_large').value*15;
var total=sofa_3_seater+sofa_2_seater+armchair_large;
document.getElementByID('total').value = total;
}</script>
I have used a hidden field for the total value:
<input type="hidden" name="total" value="">
I want the javascript result to change the value of the hidden field that is called total. Then I want it all to be posted to the PHP script and email everything to me, including this newly calculated total field!
Resolution:
<script type="text/javascript">
I have an array in a seperate.js file that I need to step through a FOR loop to grab all these values and add them together.
Here is a small sample of the array's:
Here is the loop step through that I have:
I am stuck on how to grab each amount index and add them together to save them as the amountTotal variable.
I have a Javascript that calculates and displays how long, in minutes and seconds a user has been in online(Google Gears development) mode on a given web page. I need however, to modify the script so that it calculates and displays how long the user has been online on the web site. For e.g. on page 1 for 2 minutes 12 seconds. Moves to page 2 - total time on page 1 and 2= 4 minutes 13 seconds. My script (see below) starts a second counter then converts that to minutes and seconds. I have tried passing the secVar0 variable in the url but that comes back "undefined".
Code:
if(request.responseText != "" && request.responseText.indexOf("404 Page not found") == -1)
{
c=0;
[Code]....
I have a Javascript that calculates and displays how long, in minutes and seconds a user has been in online(Google Gears development) mode on a given web page. I need however, to modify the script so that it calculates and displays how long the user has been online on the web site. For e.g. on page 1 for 2 minutes 12 seconds. Moves to page 2 - total time on page 1 and 2= 4 minutes 13 seconds. My script (see below) starts a second counter then converts that to minutes and seconds. I have tried passing the secVar0 variable in the url but that comes back "undefined".
[Code]...
I would like to display total online viewers on my website
View 7 Replies View RelatedI have 9 select menus that are populated by a php for loop. Each has a numeric value that is displayed base on the selection (which I have working).I can not figure out how to sum all of these values and display them in a <div> tag.what I have thus far:
// Part of a function that creates drop down boxes
<select name="$name" onchange="document.getElementById('cost_$name').firstChild.nodeValue = this.options[this.selectedIndex].getAttribute('cost_$name')">
[code]....
I've been given two arrays:
arr1 = [1,8,9,12]
arr2 = [2,3,10,11,13]
My task was to merge the two arrays into a third array. Done, no problem, merged then sorted a new array. I understand there is a way to merge the two without using "merge" then "sort" functions. My reference material doesn't go into it, and I can't find an example of how this would work. I think there would be a way to do it using a for loop and then "push", but I could be way off.
Can anyone tell me how they could see merging two without using the merge then sort? And what would be the advantage to doing it this alternate way as opposed to using merge? Is there a case where it would be preferable? I'm so new at this that I can't fathom doing anything other than merge.
(the "code" below is pseudo code, just to get the idea across)
Here's what I currently have:
var bill = new array[20];
var sam = new array[20];
var nancy = new array[20];
var Oscar = new array[20];
I'm assigning objects to them (ie Oscar[5] = new objLabel() This seems like a kluge, however. Here's what I'd like (again, pseudo-code)
var Objects = {bill:null; sam:null; nancy:null; Oscar:null};
var theObject = new Array of Objects[20];
// yes: i know that's wrong... and that's the part I'm having trouble with
so that I can do something like:
[Code]....
Just seems to me that keeping a single array of multiple objects is likely to be less error-prone than multiple arrays of single objects... But I don't have the syntax right... or can it be done in JS? If it's doable, would someone be kind enough to show me how to declare and access that example?
I have 2 arrays and I would like to compare the 2 arrays. If an element in array 1 is NOT in array 2 then I would like to display that element. In this case, I should only display the letter "c" but it doesn't work and I don't know why??
Here's my code:
Code:
<html><head>
<script type="text/javascript">
function getValue(id){
var x=new Array("a","b","c","d","e");
var y=new Array("a","b","3","d","e");
var str="";
for (var i=0; i<x.length; i++){
for (var j=0; j<y.length; j++){
if (x[i] == y[j]){
break;
}else{
//Check if reach the last element in the array 2
//If yes, then display that element in array 1 b/c not in array 2
if (y[j] == y.length-1){
str += x[i];
}}}}
document.getElementById(id).innerHTML = str;
}function init(){
getValue("info");
}
</script>
</head>
<body onload="init()">
<h2 id="info"></h2>
</body>
</html>