Form Field Change Detection?
Nov 11, 2009
working on a php/mysql app that has multiple tabs with multiple form fields. I am trying to incorporate a javascript form field detection function that alerts the user that they have not submitted their changes if they try to navigate away. The detection works as designed, but the problem I am having is when the form is submitted, the script senses an unload and still fires the alert. The form submits to itself and updates the database and then reloads the page with the new values. Is there a way to have the script ignore the forms submit url and skip the form check?Here is the code ( NOT mine, found it somewhere else.)
<script language="javascript">
var ids = new Array('description');
var values = new Array('<?php echo $detail['description']; ?>');
[code]....
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Dec 31, 2004
There will be a pop up menu upon detection of a blank field and I need to stop further execution of the script. How do I achieve that?
<?php if ($email_to == ' ' )?>
<script language="JavaScript" type="text/javascript">
window.alert("Please enter your the to field. Thank you.");
</script>
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Aug 18, 2005
A page I have shows a different background colour depending on the
hash portion of the url as it is first loaded. For example a link to
mysite/mypage#0000FF would result in a page with a blue background. But
another link, this one to mysite/mypage#FF0000, would not give me a red
background if directed to the window where mypage#0000FF was loaded
just one moment ago. This is normally to be expected, because the browser
thinks same page, no load event, basta.
If I use the search portion, for obvious reasons, that is treated a new page
load, even when it is from the cache, but I need the hash here. So how do I
detect in mypage the moment when the hash string is changed by a user click
event on another page in another window, perhaps even from another domain?
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Jan 8, 2008
What I need to do, is to change a form field value in a new window (window2) based on input from the parent window. The new window (window2) will pull up an existing site, with a form, which I can't change the code on. I will only be able to work with the code on the parent window.
After I load the new window (window2), with the onload function, the error says: ('window2' is undefined).
For example, here is the basic code I have been trying to work with:
<script type="text/javascript">
window.
window.open("window2.htm", "window2");
window2.theform.field.value=1;
}
</script>
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May 23, 2010
i have many filelds on my site that i want change the value.for example i have:
a link: "click here for change" with this code: -> linker (26,'field_name');
that call the javascript function
function linker ( id,field_name) {
[code]....
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Jan 27, 2009
I need to get the invalid fields to change back to blue when they're validated upon submit or even clicking out of the field.I'm not good in writing javascript yet so please include all of the javascript and html with the edits highlighted in the code:
The page:
http://shoppingcartcash.com
The js:
http://shoppingcartcash.com/form.js
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May 22, 2009
Can anyone tell me how i can change which attribute on my form field triggers the validation?currently it appears the be the name attribute. So in my Rails app using Rails helpers, it sets the name to somthing like formname['fieldname'] and the whole name.in my script if i do something like [codde]it causes the script to break.
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Oct 1, 2006
How do I change the background colour of an input box in a form as soon
as the value is changed? Also the background should revert back to it's
original colour if the user decides that they do not want to make any
changes and hence retype back the orginial value.
I do not want the background to change after the user has moved to the
next form field but as soon as the value has been changed.
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May 5, 2003
I'm going to make an attempt at coding a nice tree menu that is decent with browser support.
I want the tree to be displayed on all browsers (well, within a decent range). Of course, on older browsers, the menu won't be as functional.
Now, I'm going to be combining the javascript with a server-side language (asp.NET) and I'll be able to do some basic browser detection on the server.
But, I read about javascript object detection and am wondering how well that works exactly.
Like, what if a browser that doesn't support objects period tries to run some object detection code? Also, which browsers support user defined objects?
See, I'm thinking of breaking down the script in 3 categories. Browsers that won't get any javascript... these would be the browsers that don't support object detection, browsers with basic javascript... with these I would be able to code my own object and I would test for different features. And then there would be the browsers that can run it all.
So, basically, my question is what browsers support what features and how should I break down my code between them? A long time ago (back in the Netscape 4 / IE4 days) I did some javascripting, but since then I haven't really done any. I remember that NS4 didn't support div tags but supported layers... anyway, it got really messy.
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Jul 23, 2005
I have a web form with several fields. If I copy & paste from a RTF document into a field, the javascript validation and field length are bypassed and cause the form to fail.
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Sep 16, 2010
From the little I've read in this plugin's source code, ajaxSubmit() switches to "iframe mode" whenever it detects a file link in the form. The file is uploaded fine, but the server, which normally replies with different content. based on HTTP_X_REQUESTED_WITH header, fails to do its thing. This header is normally set to "XMLHttpRequest" on normal jQuery .ajax() calls.
The server I'm running is on rails, and I'm using the "request.xhr?" test.
I admit I'm not too familiar with iframes (or jQuery, for that matter:), but surely there must be a way to get around this, so that this can act as a simple drop-in replacement. Should I be looking at other headers, like "Accepts" or the kind, or should the plugin (or my code) be forcing the HTTP_X_REQUESTED_WITH header?
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Dec 13, 2009
need to change the value in <form action="server/script.php?s=VALUE"> with a <select>fieldI've tried this but it doenst work.
HTML Code:
<head>
<script type="text/javascript">
[code]....
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Jan 17, 2009
I have a webpage at http://manoamano.org/donate/donate2.html thatshows that total amount donated with Google Checkout.Example: "$7,440 donated so far"I would like to update the dollar value ($7,440) on the page whenevera new donation is submitted through Google Checkout.I can't figure out how to trigger the javascript when the Checkout issubmitted, also I would need to get the variable value from the formnput box. This needs to get updated on the server side so that the new amount appears when the page is accessed in the future.
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Nov 12, 2011
i think this will help people a lot, cuz i couldn't find any simple answer by googling 3 hours...i need a very very simple jquery form field reset.here is the picture what i need:
HTML Code:
<script type='text/javascript' src='http://code.jquery.com/jquery-1.6.4.min.js'></script>
<script>
[code]....
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Feb 3, 2009
The following form validation script works, currently if one of the five fields are completed, a message appears the remaining field(s) must be completed etc. Although the information the user has inputted in the first field is cleared. How can this information be available, if there is one problem in the form it doesn't make sense that the user must re-input all the information again. I look forward to hearing your response,
function validate_form ( )
{
valid = true;
[code]....
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Aug 17, 2010
my javascript code is only validating one field at a time (as in it validates on field then submits the form, instead of going through the entire thing and then returning it as true and submitting it...) I'm not sure what to do to be honest, I've looked up google to no real avail.. my variables are declared in a seperate file to the actual even handlers and I have heaps of comments through out it, so please don't judge lol i'm still learning Quote:
//Event Registrations (Variable Declarations) found in validation_chkr.js
//Validate Entire Form using validate_join()
function validate_join()
[code]....
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Jul 23, 2005
Is there a way I can calculate a field in a form based on another field in
the same form. When clicking submit, both values should be posted to the
next page. I want to be able to type in a value in one field, and
automatically in a second field the value*1,36 should appear.
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Feb 15, 2006
I have a site for property bookings with 2 calendars to enter start and end date. The calendar im using doesnt have any obvious facility to copy yhe date to 2 fields so each one has to be done, months in advance this can be a real pain.
Does anyone have any ideas how i can take the data inserted into one field and copy it to the second?
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Sep 1, 2011
I'm now working on kind of invoice form which in it the user can add as much input field as he wants.
The problem is that after adding a new input field - the content in the other fields is deleted.
Code:
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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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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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Mar 3, 2011
I work for a very large company that has zero communications between IT and the employees...so there is very little possibility of having any code changed.I need to use a web based system that submits orders for my department. The problem is i must order by "task number". I could have 20-30 task numbers so to complete the order I need to go to my company's page and fill out 15 form fields and submit for each task code. It is a terrible pain. 14 of the 15 fields are the same for each order... only the task code changes.
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Sep 24, 2009
I've set up a mock registration form page so I can learn a bit about javascript's form validation. (newbie) I want to try to attempt to style the border of a form field green when the user enters the correct info into the form text field and red on all other fields if the user doesnt enter any info into them. When i test it, enter the right info into the username field, leave the others blank, and hit the submit button it styles the username field green ok but it doesnt make the next fields (password and so on) red. just for testing purposes I've put return false on everything so it displays a message when everythings ok.[code]
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Oct 3, 2003
Am creating a framed chat application and when the user types a message in the form field and clicks the submit button, the message gets sent to the display frame, but the message stays in the form field. How can i get the form to submit the message AND reset the form field to blank too?
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May 25, 2006
i have a drop down list in a CMS im building i want it so if a user selection an option int eh drop down list called User-Defined a text box appears where they can enter a URL
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Jul 23, 2005
I have the following script:
function highlightsearch(field) {
field.focus();
field.select();
}
select and highlight the text in an input field...
Is there any way you can change the 'fill' color of the
highlighted selection to anything other than black?
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