Form Calculations
Apr 12, 2005
I am making an order form that will serve as a very basic solution for a small company
I need to calculate the total either with on_change or with a button
currently I am using this code
<input type="button" name="add" value="calculate total"
onClick="document.orderm.gtotal.value =
parseInt(document.orderm.addshipping.value) +
parseInt(document.orderm.line1price.value) +
parseInt(document.orderm.line2price.value) +
parseInt(document.orderm.line3price.value)">
but if line3price is left empty I get NAN as total
how can I bipass line3price if this field is empty?
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Feb 25, 2011
I want to refresh the calculations on a form without submitting the form. I have tried two different JavaScript button codes, and I'm wondering if there is a reason for using one over the other, and if there is something else better for cross-browser use.
1) [ICODE] _doClick('$Refresh', this, '_self')
2) [ICODE] _doClick('$Refresh', this, null, null)
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Mar 24, 2011
I'm looking for some help with something I have been developing over the last day or so. Basically, I have a form with some input boxes in it, and I am trying to use some javascript to do a calculation with these input boxes. The problem is that when I go to click on the "calculate" button nothing happens. The fields where the value should go to I have made visible instead of hidden to make sure that something is going there but nothing is appearing.
I've checked various parts of my syntax with online checkers and other javascript examples and I'm stuck as to what has gone wrong. If anyone can shed some light on the problem and possible solutions that would be awesome.
[Code]...
Edit: I have edited the code to remove/change the things that "Philip M" kindly pointed out were not needed and a bit of re-designing the page. I still can't get the javascript to put the answer value in the correct place on the click of the button. I'm under the impression it has something to do with the button rather than the javascript code but I might be wrong.
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Dec 1, 2009
just wondering can i have a submit button to do some calculations before the whole form submits like this?
Code:
<form>
<options selected></options> <calcTotalSubmitButton>
<SubmitWholeForm>
</form>
how do i call the first submit button to submit what the user has entered, before submitting whole form?
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Sep 12, 2006
I want to make algorithms that take selections from arrays and put them together in new ways. here is a simple array I set up for notes of a piano keyboard: Code:
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Sep 11, 2003
I have a wapper here, and I'm going crossed eyed trying to figure this one out. I have a form with Radio Buttons for my customers to purchase a customizable club program. I have 5 sections each of which cost a certain amount. Then I have another section that lets the user pick what duration they would like, 3, 6, 9 and 12 months. Each option has a certain % taken off the retail price. 5%, 10%, 15%, 20% depending on the duration option. All calculations are done on the fly as customers click the radio buttons. I do have it set up and working, only I have the duration listed as many times as my sections. I would like to have only one duration section. I'm not sure if this is done in java or HTML....
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Nov 8, 2005
I got the following code running on a seperate page but how could I do it without forms? the page I wish to put it on page is one big form and therefore nested forms are a no no.
<script>
function calc() {
var inp = document.ccForm.inpt.value
var inp2 = document.ccForm.inpt2.value
var outp = 0
outp = inp * inp2
document.ccForm.outpt.value = outp
}
</SCRIPT>
<FORM ACTION="#" NAME="ccForm">
<INPUT TYPE=TEXT NAME="inpt" SIZE=10 VALUE="2.9" ONCHANGE="calc()">
<INPUT TYPE=TEXT NAME="inpt2" SIZE=10 VALUE="2.9" ONCHANGE="calc()">
<INPUT TYPE=TEXT NAME="outpt" SIZE=10 DISABLED>
</FORM>
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Jan 11, 2011
I have a script with the following:
I need to do the following:
When the amount boc changes value, it must change the $credit amount and effect the $total_crt amount (ex. 10 + 10 in credit value - $total_crt value) So whenever the client chooses a new value from the select box, it must change it emidiately with javascript, but only send to the database once an update button is pressed.
Here is a quick example of my code:
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Aug 5, 2009
I have a form which is used to calculate residential Floor Area Ratio (FAR). The form is structured into seven parts as follows:
Part A: Maximum FAR and Floor Area:
Part B: Gross Floor Area of the main floors of the main house:
Part C: Gross Floor Area of the basement or cellar:
Part D: Gross Floor Area of the attic:
Part E. Gross Floor Area of all accessory structures except detached garages: (including cabanas, guest houses, caretaker's cottages, pool houses, sheds, barns, or other structures except a detached garage)
Part F. Gross Floor Area of the garage: (not including basement garages)
Part G: Total Floor Area:
The Javascript involved in the calculations is as follows:
[CODE]
<SCRIPT LANGUAGE="JavaScript" TYPE="text/javascript">
function checkAllInputFields(){
IsValidEntry(entireForm.A1.value)
IsValidEntry(entireForm.A5.value)
[Code]....
I have attached the html file as a .txt file for reference, and I have attached a .txt document including all the values I used for testing.
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Jul 14, 2010
Dear expert (Ok, i am new to this and should maybe not address this as a letter )I hope someone can help me ... this is what i want to achieve (I am using frontpage)I want to create a table (this i can do!) that require a user input (number of guests).It then has SEVERAL options:- Select an option from a drop down list, and a price is then loaded from somewhere to create a total for that option and display it in the table (And keep that total for adding later)- Check a box, and if checked it creates a further calculation, displaying and storing the number for further calculation.a number of the above options, and a grand total on the bottom.I found more or less a page on a site that does what i am looking for, but after looking at the code, i have even LESS of an idea how it works Can someone PLEASE help me, or point me in the right direction?(I am not looking for someone to just write the code for me, as this will not teach me anything, and i want to learn)
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Jan 2, 2011
Decided to start learning JavaScript, started 2 days ago. Anyway, I'm trying to create a simple script spits out a styled result based on a user input. code...
The problem is that nothing is happening when I press the calculation button.
What I would like to happen is to display a div element for each value in the array which displays the entered value from VenCost2, the current Margin %, and the result of VenCost2 * margin%. I want this to display on the same page and underneath the calculation button, preferably not having to reload the page.
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Nov 27, 2005
I have 6 images (representing each side of a dice). I need to display two of these images randomly when the user clicks "Roll the Dice!". I have set up an array with all my images contained, and I have no problem getting two random images to display when the user clicks the button. This is the easy bit. Here's my code:
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Sep 19, 2005
I have some date calculations that add a time span to a date. The problem is, when I add a time span that is a whole number of days to a date, the result can be +/- 1 hour due to daylight savings. Is there anyway to disable this?
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Apr 3, 2009
I have a matrix of radio buttons:
<input type="radio" name="chcalt" id="radio33" value="1">
<input type="radio" name="chcalt" id="radio32" value="2">
<input type="radio" name="chcalt" id="radio31" value="3">
[Code].....
The colum totals would change to: 2, 0, 1 and the total would be 3
I basically need the total of each column and the total overall. The value should be taken from the actual "VALUE".
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Jan 13, 2006
I work for a small college and we were recently given permission to use a particular GPA calculator on their website. They sent us a javascript file, that I now have. I am trying to incorporate this into our website, but I don't really know much about javascript and I am having trouble making it work.
You can view the GPA calculator here to help clarify what I mean... If someone could just help point me in the right direction or if anyone know a site with tips that would be helpful to me..
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May 5, 2009
My requirement is to develop a simple form with checkboxes which when selected calculate a price based on the value assigned to the checkbox. The form and calculations is working great but i need a few final touches which i can't work out.
1. I want the total to be in plain text and not in a text box maybe just drop the total value in a DIV.
2. I want the form to start with a default value for example 200, i have tried adding a hidden checkbox with a value of 200 and setting it to checked as default but it doesnt display 200 in the total when i first load the page it only calculates it when i select the first box and i need it to be displayed as the total even if no options are selected.
[Code]...
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Jul 23, 2005
I have a form built and on the onclick event I validate all of the
fields and then if the form is ok, on the submit event I run a
javascript function to set a cookie and download a file from the
current window.
I have a cgi script provided by my web host to send the contents of the
form through email but they only show me how to use the cgi script to
send email through the submit event of the form.
ie. <form name="downloadform" method="post"
action="/cgi-bin/cgiemail/mailtemp.txt" onSubmit="return
Validate(this)">
Can I utilize the cgi script/link from my javascript function and still
send the contents of the form through the cgi email??
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Aug 25, 2010
I've been struggling trying to get a small order form to work the way I want it to. Here is a link to the live page: [URL] And here is the code in question:
[Code]...
I have two questions...
Question 1 How can I make this piece of script act a little smarter. Look at the order form, I'm catering for up to 4 people and providing lunch for them. If they select 3 people and the spaghetti bol for lunch, it's only adding $10 where it should be adding $30. Obviously this is simple multiplication but since the values in my form are prices it makes it a little tricky. I'm guessing an onselect on the first part of the form which changes the pricing of the other items would be the way to go, but how do I do this?
Question 2 The "Total Price" is placed before the <form> tag by the script. This is ok but it's not where I want it. How can I position this text elsewhere in the document?
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Mar 16, 2010
How does one cause a form element to appear ONLY if a certain form selection is made before it?
That is for example say there is a form element of type Radio called "format" so only if they select format value = normal then the form input fields called URL and Name are to appear as the next choices otherwise form input field Group and checklist Places are to appear as the next choices.
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Jul 23, 2005
How would I put this together so,
<input name="input1" type="text">
<input name="input2" value="whatever is typed into input1" type="text">
I would like to be able to type something in input1, and see it type
into input2
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Mar 2, 2006
I am having a problem with the submit() method that is driving me nuts. I'm using document.form.submit() with large text fields (approx. 2000 characters) and am getting a "Invalid Syntax" error. If I do the same thing with a text field of under 1500 characters, it works fine.
Is there some size limit here that I don't know about?
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Jun 3, 2011
I've have a function to take the value entered in a form text box, add 50 to it and put the result in another text box.
When I enter 650.5 I get 700.5 exactly how I'd expect. But when I enter -650.5 instead of getting -600.5 I get -650.050 as though it is failing to parse the float due to it being negative. My understanding of parseFloat was that it recognises negative numbers. Is there a nice simple way to get this to work?
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Oct 11, 2010
Is it possible to read a web page on some web site that contains a form. Then identify the fields in the forms. Then fills the fields with my data. and then submits the form as it submitted normally. I need to do this to automate for my final proyect , i need to fill many web pages remotly
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May 23, 2010
I would like to have a main form (written in PHP) that has a "lookup" button next to a text field. When the user clicks "lookup", it should open a new window that lets them search (child.page1). When they enter a name or DOB into the search form, it submits the form through PHP (via POST), to a results page (child.page2). This displays all persons in the database which have a name or DOB == to the search term(s), with a checkbox next to each match. They click the checkbox (or alternenatively, a link), and return the checkbox value to the main window.
I have everything working right now, except that (child.page2) doesn't recognize the main window. If the data is entered on (child.page1), it works fine. I'm not very familiar with javascript.. is this even possible? I've considered using frames, to keep the parent-child relationship evident to the computer, but figured I'd check to see if there's an easier way.
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May 4, 2009
I need to pass user input from a form to one database field. I'm relatively new to JS but the idea I had was to have several form elements and use JS to collect the users input and send all the values through a hidden element. What's happening is the variable names are being sent rather than the values. The code below is only passing to the next page. Limitations: I am editing an intranet site built by a 3rd party so a lot of the files we've been given are encrypted. I cannot change the method to post.
[Code]....
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Dec 9, 2010
Here is the issue I am having: In my project, I have a index.php page with a sidebar menu and a div id called œcontent.The user can select different menu items and perform searches from the database and make updates to their account. Im using ajax to load all of the menu items and all of the forms into the div id "content" on the index page. The Forms all load into the target div as they are suppose to with ajax.
However, on the mysettings page I have two forms and two different buttons, one called save and the other called update. When a user wants to edit their account information and makes changes to their account they clicks on either button and the form processes the information and updates or inserts data into the database correctly but the problem is that after that the form or page does not display the form back in the div id "content" like how it was loaded originally in the index.php page. The problem is that it reloads or refreshes the form page without the index.php page being involved. That is does not get reloaded or updated inside the index.php page content div again.
What I would like do is have all of my forms process whatever is submitted on the page and display the results back inside the same content div on the index.php page again. I know I am missing something because all of my forms are doing the same thing. I am hoping someone can help me out. I would be very grateful for example code that I can learn from since I am still relatively new to web development. I am posting some sample code below.
[Code]...
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