Most supported method to get submit button value - javascript

What is the most supported way to get a name and value to post from the button which was used to submit a form (particularly if there are multiple)?
From what I'm reading, SubmitEvent.submitter seems to be the most common way. But there seems to be some gaps in older browser support. Anyone have a fallback way to ensure better supportability of something like this?

Simple example below:
<script>
function showSender(e) {
console.log("submit element: ", e.submitter);
console.log("submit element value: ", e.submitter.innerHTML);
return false; // <- break sending form
}
</script>
Form:
<form onsubmit='return showSender(event);' method='post' action='#'>
Value: <input type='text' value='x'>
<button type='submit'>ABC</button>
<button type='submit'>XYZ</button>
</form>
Back compatibility:
https://caniuse.com/mdn-api_submitevent_submitter

Related

Why does div text automatically return to original after being adjusted with JavaScript through innerHTML? [duplicate]

In the following page, with Firefox the remove button submits the form, but the add button does not.
How do I prevent the remove button from submitting the form?
function addItem() {
var v = $('form :hidden:last').attr('name');
var n = /(.*)input/.exec(v);
var newPrefix;
if (n[1].length == 0) {
newPrefix = '1';
} else {
newPrefix = parseInt(n[1]) + 1;
}
var oldElem = $('form tr:last');
var newElem = oldElem.clone(true);
var lastHidden = $('form :hidden:last');
lastHidden.val(newPrefix);
var pat = '=\"' + n[1] + 'input';
newElem.html(newElem.html().replace(new RegExp(pat, 'g'), '=\"' + newPrefix + 'input'));
newElem.appendTo('table');
$('form :hidden:last').val('');
}
function removeItem() {
var rows = $('form tr');
if (rows.length > 2) {
rows[rows.length - 1].html('');
$('form :hidden:last').val('');
} else {
alert('Cannot remove any more rows');
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<html>
<body>
<form autocomplete="off" method="post" action="">
<p>Title:<input type="text" /></p>
<button onclick="addItem(); return false;">Add Item</button>
<button onclick="removeItem(); return false;">Remove Last Item</button>
<table>
<th>Name</th>
<tr>
<td><input type="text" id="input1" name="input1" /></td>
<td><input type="hidden" id="input2" name="input2" /></td>
</tr>
</table>
<input id="submit" type="submit" name="submit" value="Submit">
</form>
</body>
</html>
You're using an HTML5 button element. Remember the reason is this button has a default behavior of submit, as stated in the W3 specification as seen here:
W3C HTML5 Button
So you need to specify its type explicitly:
<button type="button">Button</button>
in order to override the default submit type. I just want to point out the reason why this happens.
Set the type on your buttons:
<button type="button" onclick="addItem(); return false;">Add Item</button>
<button type="button" onclick="removeItem(); return false;">Remove Last Item</button>
...that'll keep them from triggering a submit action when an exception occurs in the event handler. Then, fix your removeItem() function so that it doesn't trigger an exception:
function removeItem() {
var rows = $('form tr');
if ( rows.length > 2 ) {
// change: work on filtered jQuery object
rows.filter(":last").html('');
$('form :hidden:last').val('');
} else {
alert('Cannot remove any more rows');
}
}
Note the change: your original code extracted a HTML element from the jQuery set, and then tried to call a jQuery method on it - this threw an exception, resulting in the default behavior for the button.
FWIW, there's another way you could go with this... Wire up your event handlers using jQuery, and use the preventDefault() method on jQuery's event object to cancel the default behavior up-front:
$(function() // execute once the DOM has loaded
{
// wire up Add Item button click event
$("#AddItem").click(function(event)
{
event.preventDefault(); // cancel default behavior
//... rest of add logic
});
// wire up Remove Last Item button click event
$("RemoveLastItem").click(function(event)
{
event.preventDefault(); // cancel default behavior
//... rest of remove last logic
});
});
...
<button type="button" id="AddItem" name="AddItem">Add Item</button>
<button type="button" id="RemoveLastItem" name="RemoveLastItem">Remove Last Item</button>
This technique keeps all of your logic in one place, making it easier to debug... it also allows you to implement a fall-back by changing the type on the buttons back to submit and handling the event server-side - this is known as unobtrusive JavaScript.
Sometime ago I needed something very similar... and I got it.
So what I put here is how I do the tricks to have a form able to be submitted by JavaScript without any validating and execute validation only when the user presses a button (typically a send button).
For the example I will use a minimal form, only with two fields and a submit button.
Remember what is wanted:
From JavaScript it must be able to be submitted without any checking. However, if the user presses such a button, the validation must be done and form sent only if pass the validation.
Normally all would start from something near this (I removed all extra stuff not important):
<form method="post" id="theFormID" name="theFormID" action="">
<input type="text" id="Field1" name="Field1" />
<input type="text" id="Field2" name="Field2" />
<input type="submit" value="Send" onclick="JavaScript:return Validator();" />
</form>
See how form tag has no onsubmit="..." (remember it was a condition not to have it).
The problem is that the form is always submitted, no matter if onclick returns true or false.
If I change type="submit" for type="button", it seems to work but does not. It never sends the form, but that can be done easily.
So finally I used this:
<form method="post" id="theFormID" name="theFormID" action="">
<input type="text" id="Field1" name="Field1" />
<input type="text" id="Field2" name="Field2" />
<input type="button" value="Send" onclick="JavaScript:return Validator();" />
</form>
And on function Validator, where return True; is, I also add a JavaScript submit sentence, something similar to this:
function Validator(){
// ...bla bla bla... the checks
if( ){
document.getElementById('theFormID').submit();
return(true);
}else{
return(false);
}
}
The id="" is just for JavaScript getElementById, the name="" is just for it to appear on POST data.
On such way it works as I need.
I put this just for people that need no onsubmit function on the form, but make some validation when a button is press by user.
Why I need no onsubmit on form tag? Easy, on other JavaScript parts I need to perform a submit but I do not want there to be any validation.
The reason: If user is the one that performs the submit I want and need the validation to be done, but if it is JavaScript sometimes I need to perform the submit while such validations would avoid it.
It may sounds strange, but not when thinking for example: on a Login ... with some restrictions... like not allow to be used PHP sessions and neither cookies are allowed!
So any link must be converted to such form submit, so the login data is not lost.
When no login is yet done, it must also work. So no validation must be performed on links.
But I want to present a message to the user if the user has not entered both fields, user and pass. So if one is missing, the form must not be sent! there is the problem.
See the problem: the form must not be sent when one field is empty only if the user has pressed a button, if it is a JavaScript code it must be able to be sent.
If I do the work on onsubmit on the form tag, I would need to know if it is the user or other JavaScript. Since no parameters can be passed, it is not possible directly, so some people add a variable to tell if validation must be done or not. First thing on validation function is to check that variable value, etc... Too complicated and code does not say what is really wanted.
So the solution is not to have onsubmit on the form tag. Insead put it where it really is needed, on the button.
For the other side, why put onsubmit code since conceptually I do not want onsubmit validation. I really want button validation.
Not only the code is more clear, it is where it must be. Just remember this:
- I do not want JavaScript to validate the form (that must be always done by PHP on the server side)
- I want to show to the user a message telling all fields must not be empty, that needs JavaScript (client side)
So why some people (think or tell me) it must be done on an onsumbit validation? No, conceptually I am not doing a onsumbit validating at client side. I am just doing something on a button get pressed, so why not just let that to be implemented?
Well that code and style does the trick perfectly. On any JavaScript that I need to send the form I just put:
document.getElementById('theFormID').action='./GoToThisPage.php'; // Where to go
document.getElementById('theFormID').submit(); // Send POST data and go there
And that skips validation when I do not need it. It just sends the form and loads a different page, etc.
But if the user clicks the submit button (aka type="button" not type="submit") the validation is done before letting the form be submitted and if not valid not sent.
Well hope this helps others not to try long and complicated code. Just not use onsubmit if not needed, and use onclick. But just remember to change type="submit" to type="button" and please do not forget to do the submit() by JavaScript.
I agree with Shog9, though I might instead use:
<input type = "button" onClick="addItem(); return false;" value="Add Item" />
According to w3schools, the <button> tag has different behavior on different browsers.
You can simply get the reference of your buttons using jQuery, and prevent its propagation like below:
$(document).ready(function () {
$('#BUTTON_ID').click(function(e) {
e.preventDefault();
e.stopPropagation();
e.stopImmediatePropagation();
return false;
});});
$("form").submit(function () { return false; });
that will prevent the button from submitting or you can just change the button type to "button" <input type="button"/> instead of <input type="submit"/>
Which will only work if this button isn't the only button in this form.
Suppose your HTML form has id="form_id"
<form id="form_id">
<!--your HTML code-->
</form>
Add this jQuery snippet to your code to see result,
$("#form_id").submit(function(){
return false;
});
Buttons like <button>Click to do something</button> are submit buttons.
You must add type
This is an html5 error like has been said, you can still have the button as a submit (if you want to cover both javascript and non javascript users) using it like:
<button type="submit" onclick="return false"> Register </button>
This way you will cancel the submit but still do whatever you are doing in jquery or javascript function`s and do the submit for users who dont have javascript.
Just add e.preventDefault(); in your method should prevent your page from submitting forms.
function myFunc(e){
e.preventDefault();
}
According to the MDN Web Docs
The preventDefault () method of the Event interface tells the user
agent that if the event is not explicitly processed, its default
action should not be taken into account as it would normally be. The
event continues to propagate as usual, unless one of its listeners
calls stopPropagation () or stopImmediatePropagation (), either of
which terminates the propagation.
The return false prevents the default behavior. but the return false breaks the bubbling of additional click events. This means if there are any other click bindings after this function gets called, those others do not Consider.
<button id="btnSubmit" type="button">PostData</button>
<Script> $("#btnSubmit").click(function(){
// do stuff
return false;
}); </Script>
Or simply you can put like this
<button type="submit" onclick="return false"> PostData</button>
I am sure that on FF the
removeItem
function encounter a JavaScript error, this not happend on IE
When javascript error appear the "return false" code won't run, making the page to postback
Set your button in normal way and use event.preventDefault like..
<button onclick="myFunc(e)"> Remove </button>
...
...
In function...
function myFunc(e){
e.preventDefault();
}
return false;
You can return false at the end of the function or after the function call.
Just as long as it's the last thing that happens, the form will not submit.
if you have <input />
use it
<input type="button"/>
if you have <button>btn</button>
use it
<button type="button">btn</button>
Here's a simple approach:
$('.mybutton').click(function(){
/* Perform some button action ... */
alert("I don't like it when you press my button!");
/* Then, the most important part ... */
return false;
});
I'm not able to test this right now, but I would think you could use jQuery's preventDefault method.
The following sample code show you how to prevent button click from submitting form.
You may try my sample code:
<form autocomplete="off" method="post" action="">
<p>Title:
<input type="text" />
</p>
<input type="button" onclick="addItem()" value="Add Item">
<input type="button" onclick="removeItem()" value="Remove Last Item">
<table>
<th>Name</th>
<tr>
<td>
<input type="text" id="input1" name="input1" />
</td>
<td>
<input type="hidden" id="input2" name="input2" />
</td>
</tr>
</table>
<input id="submit" type="submit" name="submit" value="Submit">
</form>
<script language="javascript">
function addItem() {
return false;
}
function removeItem() {
return false;
}
</script>
The function removeItem actually contains an error, which makes the form button do it's default behaviour (submitting the form). The javascript error console will usually give a pointer in this case.
Check out the function removeItem in the javascript part:
The line:
rows[rows.length-1].html('');
doesn't work. Try this instead:
rows.eq(rows.length-1).html('');
https://developer.mozilla.org/pt-BR/docs/Web/API/HTMLFormElement/submit_event
Do your logic on the form onsubmit event
submitter Read only
An HTMLElement object which identifies the button or other element which was invoked to trigger the form being submitted.
onsubmit="(evt) => console.log(evt)"
The event itself will bring along the caller and some usefull info.
Just use evt.preventDefault(); (default submit) evt.stopPropagation(); (submit bubbling) if the caller is a

Troubleshoot Automatic PHP form submission [duplicate]

Can anyone tell me what is going wrong with this code? I tried to submit a form with JavaScript, but an error ".submit is not a function" shown. See below for more details of the code:
<form action="product.php" method="get" name="frmProduct" id="frmProduct" enctype="multipart/form-data">
<input onclick="submitAction()" id="submit_value" type="button" name="submit_value" value="">
</form>
<script type="text/javascript">
function submitAction()
{
document.frmProduct.submit();
}
</script>
I also tried this:
<script type="text/javascript">
function submitAction()
{
document.forms["frmProduct"].submit();
}
</script>
Both show me the same error :(
submit is not a function
means that you named your submit button or some other element submit. Rename the button to btnSubmit and your call will magically work.
When you name the button submit, you override the submit() function on the form.
Make sure that there is no another form with the same name and make sure that there is no name="submit" or id="submit" in the form.
If you have no opportunity to change name="submit" you can also submit form this way:
function submitForm(form) {
const submitFormFunction = Object.getPrototypeOf(form).submit;
submitFormFunction.call(form);
}
<form action="product.php" method="post" name="frmProduct" id="frmProduct" enctype="multipart/form-data">
<input id="submit_value" type="button" name="submit_value" value="">
</form>
<script type="text/javascript">
document.getElementById("submit_value").onclick = submitAction;
function submitAction()
{
document.getElementById("frmProduct").submit();
return false;
}
</script>
EDIT: I accidentally swapped the id's around
I had the same issue when i was creating a MVC application using with master pages.
Tried looking for element with 'submit' as names as mentioned above but it wasn't the case.
For my case it created multiple tags on my page so there were some issues referencing the correct form.
To work around this i'll let the button handle which form object to use:
onclick="return SubmitForm(this.form)"
and with the js:
function SubmitForm(frm) {
frm.submit();
}
form.submit() will not work if the form does not have a <button type="submit">submit</button>. form element belongs to HTMLFormElement interface, therefore, we can call from prototype directly, this method will always work for any form element.
HTMLFormElement.prototype.submit.call(form)
This topic has a lot of answers already, but the one that worked best (and simplest - one line!) for me was a modification of the comment made by Neil E. Pearson from Apr 21 2013:
If you're stuck with your submit button being #submit, you can get around it by stealing another form instance's submit() method.
My modification to his method, and what worked for me:
document.createElement('form').submit.call(document.getElementById(frmProduct));
I had same issue and resolved my issue just remove name="submit" from submit button.
<button name='submit' value='Submit Payment' ></button>
Change To
<button value='Submit Payment' ></button>
remove name attribute hope it will work
Sorry to answer late but for those who are still facing the same error. To get rid of this error:
<form method="POST">
<input type="text"/>
<input type="submit" id="submit-form" value="Submit Form" style="display: none;"/>
</form>
<!-- Other element that will submit the form -->
<button onclick="submitTheForm()">Submit the form</button>
<script>
function submitTheForm(){
document.getElementById("submit-form").click();
}
</script>
Explanation:
The javascript function submitTheForm() is accessing the submit input element and calling the click event on it which results in the form submission.
This solution is lifetime and almost 100% compatible in all browsers.
giving a form element a name of submit will simple shadow the submit property .
make sure you don't have a form element with the name submit and you should be able to access the submit function just fine .
In fact, the solution is very easy...
Original:
<form action="product.php" method="get" name="frmProduct" id="frmProduct"
enctype="multipart/form-data">
<input onclick="submitAction()" id="submit_value" type="button"
name="submit_value" value="">
</form>
<script type="text/javascript">
function submitAction()
{
document.frmProduct.submit();
}
</script>
Solution:
<form action="product.php" method="get" name="frmProduct" id="frmProduct"
enctype="multipart/form-data">
</form>
<!-- Place the button here -->
<input onclick="submitAction()" id="submit_value" type="button"
name="submit_value" value="">
<script type="text/javascript">
function submitAction()
{
document.frmProduct.submit();
}
</script>
Possible solutions -
1.Make sure that you don't have any other element with name/id as submit.
2.Try to call the function as onClick = "return submitAction();"
3.document.getElementById("form-name").submit();
You should use this code :
$(document).on("ready", function () {
document.frmProduct.submit();
});
What I used is
var enviar = document.getElementById("enviar");
enviar.type = "submit";
Just because everything else didn´t work.
Solution for me was to set the "form" attribute of button
<form id="form_id_name"><button name="btnSubmit" form="form_id_name" /></form>
or is js:
YOURFORMOBJ.getElementsByTagName("button")[0].setAttribute("form", "form_id_name");
YOURFORMOBJ.submit();
I faced this issues also but i made a quick fix using
const form = document.getElementById('create_user_form');
function onSubmit(event) {
console.log(event.target[0].value);
console.log(form.submit); // 👉️ input#submit
// ✅ Works
HTMLFormElement.prototype.submit.call(form);
}
form.addEventListener('submit', onSubmit);
Even though accessing the submit property on the form element points to the submit input element and not the method, we can still submit the form by accessing the submit property on the HTMLFormElement interface.
I was facing the same problem that my submit() wasn't working. In my case, I'd an id="submit" on the input tag having type="submit", I removed the id, and it started working.
You can try
<form action="product.php" method="get" name="frmProduct" id="frmProduct" enctype="multipart/form-data">
<input onclick="submitAction(this)" id="submit_value" type="button" name="submit_value" value="">
</form>
<script type="text/javascript">
function submitAction(element)
{
element.form.submit();
}
</script>
Don't you have more than one form with the same name ?
Use getElementById:
document.getElementById ('frmProduct').submit ()

In firefox form is not getting submitted after adding onsubmit attribute to form

I have a simple form like below.
<form onsubmit="return showProgressBar();" method="post" action="charts?operation=dashboard" enctype="multipart/form-data">
<input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}" />
<button type="submit">Upload</button>
</form>
and two js methods like below
<script>
function showProgressBar(){
return displayProgressBar();
}
function displayProgressBar(){
var imgUrl = commonObj.appBasePath + '/static/images/ajax-loader.gif';
$("#content").html('<div align="center" style="padding-top:200px"><img src="' + imgUrl+'" /></div>');
return true;
}
</script>
With this in Firefox, the form is not being submitted. This works properly in chrome.
If I remove the onsubmit attribute then it works in firefox too.
What is the issue here in firefox?
If I remove method call and directly return true then it works as below.
function showProgressBar(){
return true;
}
It looks like you are replacing your form with progress bar. Isn't it in the div with id=content?
I was able to reproduce it, please check out this jsfiddle: https://jsfiddle.net/kLhmd7nw/4/
In Chrome you will get error response from jsfiddle site, while in firefox text 'progress bar' will appear and when you look at network requests there isn't one with form submission.

Form fields value get reset without page load

Following is my code in which i am trying to accomplish, when user clicks on the submit button then my javascript function sets all the value to null in the textfields of the form whose id='contact_form' without loading the page . Kindly let me know how can i modify the following code to accomplish the functionality i've been trying to do.
Thanks!!
<script type='text/javascript'>
$(document).ready(function(){
$('#love').click(function(e) {
document.contact_form.name.value = '';
alert('aloha!!');
//stop the form from being submitted (not working fine)
e.preventDefault();
}
}
</script>
<form name='abc' action='' id='abc' >
<input type="submit" id='love' />
</form>
I have also tried the following function it worked fine but its not preventing from the page load
<script type='text/javascript'>
function js(){
document.contact_form.name.value = '';
//stop the form from being submitted (NOT WORKING!!)
preventDefault();
}
}
</script>
If you try onsubmit="return false;" in the form tag your form will not be submitted. Unfortunately it will NEVER be submit. Unless you are not planning to submit it via AJAX you have to modify your onsubmit event like this:
<form onsubmit="return callFunction()">
function callFunction() {
if(condition)
return true;
else
return false;
}
$("#abc").submit( function() {
// do everything you want.
return false; //will prevent the reload.
});
To have a function execute when the form submits you have to do something like this;
<form onsubmit="return validate();">
your form here
</form>
Then you can have your check in a function called 'validate()' (or whatever you want to call it)
Make sure the validate() function returns true is the form is allowed to submit, or returns false if the page is not allowed to submit.
Also put id's and names on your input elements, that way you can access them much easier.
Assuming you have an HTML like this :
<form>
<input type="text" id="text" />
<input type="submit" id='submit' value="clear above field without reloading" />
</form>
And you want the text field value to clear when a user submits without reloading using jQuery, then following script will be your remedy :
$(function(){
$('#submit').click(function(){
$('#text').value('');
})
});
A form can be submitted in many ways, not only by clicking on a submit buttons. You should really watch for submit events, and cancel them with preventDefault (instead of click events that might trigger the submit). See #user1359163's answer.
But you problem seem to be document.contact_form.name.value. There is no property contact_form on the document object, so this will raise an error. The preventDefault is not executed, your form gets submitted and you never see the error. Set your debugger to "Stop on errors"!
You might want something like document.forms["contact"], but I don't know your HTML. An id selector for the input element would be the better choice.

jQuery/JavaScript - Displaying value from text-input in <span>-placeholders

I FORMULATED MY SELF VERY BADLY!
I will start over :) I appreciate your good answers, and if you can, try answering this: ( I will try to be more specific this time)
What I want is, that a <form>element onsubmit, onclick of a button or whatever takes the value of an <input type="text" value="Default value"> and inserts it in a couple of <span>elements, I like to call "placeholders". This sample might explain it a little better:
<head>
<script type="text/javascript">
$(document).ready(function()
{
$("input[type=button]").click(function //click the button
{ do_the_magic_thing() //make the value from id="txt_inp" appear in class="placeholder"
});
});
</script>
</head>
<body>
<form method="POST" action="" id="theForm"> //could also be get, I don't care
<input type="text" id="txt_inp" value="Default Value" onfocus="if (this.value == Default Value) this.value=''"> //this SHOULD make the Default Value dissapear on focus
<input type="button"> //could also be a submit
<span class="placeholder"></span> //$("#txt_inp").value; goes here
<span class="placeholder"></span> //$("#txt_inp").value; goes here
</body>
Now, is it really as simple as this?:
var do_the_magic_thing = function() {
$(".placeholder").html = $("#txt_inp").value;
};
I'm going to bed now - it's late in Denmark :) I will answer your comments tomorrow :)
OLD POST:
I am very new to this jQuery thing, but I do understand the basics and all. Let's simplify and say I have a form which looks like this:
<form method="POST" action="">
<input type="text" value="Default value">
<input type="submit" value="Click me">
<input type="hidden"> //hidden is for being able to submit by hitting enter
</form>
I've tried with $.post, but I just cannot get it right; it's not working for me.
Now, I would like to cancel the submit (can't that be done by just adding a return false; in the function returning the value, if a such is present?), but this is not crucial.
I think I typed in something like
$.post("test.php", function(data) {
alert("This is the data submitted (and cancelled):" + data);
}); //I have also tried without the "test.php", that's not it
Can you tell me, what I'm doing wrong please? :)
NOTE
It is not necessary, that the submit is cancelled, but I would like that
Nor is it necessary, that POST is the method used, but once again, this is what I prefer
Change the id of your form to "myform" or whatever and the name of your text input to "myinput", and try something like this...
$(document).ready(function() {
$('#myform').submit(submitMyForm);
})
function submitMyForm(e) {
var data = new Object();
data.whatever = $('#myinput').val();
var post = new Object();
//here I use a jquery json extension...you can use anything you like
post.data = $.toJSON(data);
$.post("test.php", post, function(returnval) {
alert(returnval);
}, "text");
//this is to stop the normal form submit action
return false;
}
Then in your test.php you can access it by calling $_POST['data'] (we specified this when we created the property of the "post" object called "data" like this: post.data = 'whatever'.
To answer the revised version of your question, yes, it really is that simple, although the correct syntax for your "do the magic thing" function is the following:
var do_the_magic_thing = function() {
$('.placeholder').html($('#txt_inp').val());
};
P.S. Don't worry too much about not expressing yourself, your English is much better than my Danish.
I think what you want to do is something like this:
<fieldset id="myData">
<legend>My Data</legend>
</fieldset>
<form id="myForm" method="POST" action="">
<input type="text" value="Default value">
<input type="submit" value="Click me">
<input type="hidden"> //hidden is for being able to submit by hitting enter
</form>
$(function() {
$('#myForm').submit(function() {
//do whatever you want here.
//this will take place after the form is submitted, but before your ajax request
$('input[type=text]').each(function() {
$('#myData').append('<div class="placeholder">' + $(this).val() + '</div>');
});
//serialize your form data
var toSubmit = $('input[type=text]').serialize();
//do ajax here
$.post('test.php', toSubmit, function(data) {
alert('Your AJAX POST request returned: ' + data);
}, 'text');
//this will prevent the form from submitting normally
return false;
});
});
Here's a demo of this in action: http://jsfiddle.net/SA3XY/
Also see my comment on your question.
Well for the form submit you need to add the following to the form to cancel the default submit event:
<form onsubmit="return functioncall();">
Then when you return false from the function it will cancel the default form action.
EDIT: If you would like to see all the data that is to be submitted you can serialize the form using jquery serialize() method or serializeArray() method.
If you're trying to accomplish validation, there's a much easier way, just use a validation plugin like this one:
http://docs.jquery.com/Plugins/Validation
Makes it much easier and takes the headache out of developing your own code. Jquery makes it easy to develop powerful javascript applications...but sometimes it's just easier to use stuff that's already been written and debugged (for the most part at least).

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