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Javascript HTML CSS Q&A » validation » form 
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1. Why won't this form validate?    stackoverflow.com

The "onsubmit" statement is not called:

<form action="index.php" method="post" onsubmit="return validateSearchKeyword()">
     <input class="text_search" id="text_search" name="text_search" type="text" value="search" onfocus="if (this.value=='search') this.value = ''" onBlur="if (this.value=='') this.value = 'search'"  ...

2. What is the best approach for confirming html form fields?    stackoverflow.com

A lot of times you get a form where you need to enter an email address (or other form field) twice in order to confirm that you typed it correctly the ...

3. javascript form validation on server/local    stackoverflow.com

I'm using javascript form validation for the entry form for a contest I'm running. It's inline CSS so that if certain conditions aren't met, it displays, in red, messages that ...

4. Form Validation using javascript    stackoverflow.com

The validation code that i have on my page is:

function validateForm() {
    with (document.contactform) {
        var alertMsg = "The following REQUIRED ...

5. Validating Form Data and Displaying Graphics with JavaScript    stackoverflow.com

I have not really used JavaScript before but I am trying to validate form elements as they are being filled out. I have an X and a Check mark that I ...

6. Ideas and solutions for validating this form is wanted    stackoverflow.com

I have a form which I need to validate the easiest and most safe way. This is for a classifieds website! Now, I have several categories which the user may chose from, and ...

7. How to validate many forms in html using single javascript method?    stackoverflow.com

I am having two forms for example login and register. In login page i am having two fields namely username and password. In register page i am having fields namely firstname, lastname, username, ...

8. Firefox does not support JavaScript (form validation) but IE fully support    stackoverflow.com

this is my code:

function validateFormOnSubmit2(theForm) {
var reason = "";

  reason += validateState(theForm.state);        
  if (reason != "") {
    alert("State ...

9. JS form verification function not working    stackoverflow.com

I have this form with a JS function to verify that there are no blank fields, but it doesn't work.

<head>
  <script language='javascript'>
      function verifyForm(){
 ...

10. Why my form doesn't validate correctly?    stackoverflow.com

I'm trying to validate a form, but doesn't work :\ , When I submit the form goes to mail.php even if the required fields are missing, but I set onsubmit to ...

11. Help with Form Validation    stackoverflow.com

I want to validate a form. How do I do that? I have email,username,password as my fields. I don't want any of them to be NULL and password and confirm password should match. Please ...

12. Validate form with Javascript    stackoverflow.com

I am trying to get a validation process to work using Javascript, my form has four radio buttons and one submit button, and I wanted to make it so if the ...

13. Javascript form validation    stackoverflow.com

currently I have an Html form with javascript validation. Currently the errors are showing in a popup by using the alert command.... how I can display error messages next to the ...

14. Javascript Form Validation , JPEG + Required .. Help    stackoverflow.com

I have the form below can anyone make me a validation script for REQUIRED EMAIL REQUIRED TITLE FILE MUST BE JPG (already have the code but cant seem to have everything work)

<script type="text/javascript">
function Checkfiles(f){
 ...

15. Form validation problem, code doesn't work    stackoverflow.com

I really don't know why this validation doesn't work. this is my html:

<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type='text/javascript' src="scripts.js"></script>
<title>Test Page!</title>
</head>

<body>
<form onsubmit ="return validateFormOnSubmit(this)" name="myForm" action = "testForm.html">
<input name="textField" type="text" value="" size="50" ...

16. please help in fixing this issue with simple javascript    stackoverflow.com

while( $data is comming from db)
{
  <{form} name=formName.$uniqueValue action= onsubmit=return validate(this){>}

    <input type=text name=sort_order[] value= value_from_db />
    <input type='submit' />
  <{/form}>

}
Below is the ...

17. Form validation    stackoverflow.com

Hi all i have a form and am just wondering how do i wrap all the functions into the validate form function heres my code

<form action="#" name="basicform"  id="basicform"  ...

18. Form will not validate    stackoverflow.com

My form won't validate, all my functions when called with the submit button

//This is the main function 
function validate_form(form) {
    var complete = false;

    ...

19. Javascript form validation    stackoverflow.com

How do I let users know that "there are changes left to be saved on the form if they try to close the browser window?"
I have a form with couple ...

20. javascript - why doesnt this work?    stackoverflow.com

<form method="post" action="sendmail.php" name="Email_form">
Message ID <input type="text" name="message_id" /><br/><br/>
Aggressive conduct <input type="radio" name="conduct" value="aggressive contact" /><br/><br/>
Offensive conduct <input type="radio" name="conduct" value="offensive conduct" /><br/><br/>
Rasical conduct <input type="radio" name="conduct" value="Rasical conduct" /><br/><br/>
Intimidating conduct ...

21. Mootools form validation fails in IE8 compatibility view    stackoverflow.com

I've created a form (form website page) that works perfectly on IE8, Google Chrome, Firefox, Safari, Opera and SeaMonkey but not when I'm using the compatibilty view to emulate ...

22. Referring to a value in a dropdown list in javascript    stackoverflow.com

I am building validation for my forms. I have covered the input text fields with the folowing code:

function validateForm_id()
{
var ctrl = document.forms["form1"]["id"];
var x=ctrl.value;
if (x==null || x=="") {
document.getElementById('id').style.backgroundColor="#FFD4D4";
document.getElementById("id").style.borderColor="#FF7A7A";
document.all.id.innerText = "password required";
I would ...

23. Firefox will not validate form data    stackoverflow.com

The following simple form with javascript with onclick button does not work in Firefox (I have version 7) but works fine in IE, Chrome, and Safari. What am I missing?

<head>
<script type="text/javascript">
  ...

24. Html/javascript validation failing    stackoverflow.com

Does anyone know why this javascript isn't working ? Its returning the field is empty when its not The html i'm using on the form is:

 onsubmit="return validate_form ( );" method="post" name="AddPTR"
And ...

25. Javascript form validation    stackoverflow.com

I'm trying to have two functions checking each form input, one for onchange() and the other for onkeypress(); my reason for this would be to show if the input was valid ...

26. My JavaScript Form Validation is Not Working    stackoverflow.com

I am trying to validate three fields in my form. The form is a simple contact me form and the JavaScript. Below is the javascript code for the validation:

 <script type="text/javascript"><!--
function ...

27. Form Validation & HTML W3C Validation    codingforums.com

Hello all, new here Seems like a very nice place to be apart of. I have my website www.gebcn.com. If you view source you will see all that I have done, but more importantly my problem. I have the JS code at the top there and I am unable to W3C validate my HTML because of the JS. I am using ...

28. Unable to validate html forms using external javascript    codingforums.com

There is a thread somewhere, but I saved the script from it anyway, so here. You should be able to pick out what you need. I didn't write it. Code: Any Title

35. Validating a (X)HTML Form    phpfreaks.com

I don't know if this is the right place but i can't imagine I can do what i want without AJAX/Javascript. Basically I have a form a user uses to insert some data to a database. I want to make sure everything is correct and everything is inserted that needs to be and everything that needs to be unique ...

36. Javascript/HTML form validator to redirect    sitepoint.com

Hi there, I'm trying to run a piece of code that exclusively uses HTML with Javascript. The purpose of the page is for the user to input a number, and hit the submit button. Depending on the number they've inputted, they will be told if it's correct or not. If it's correct, they'd be redirected to a certain page. If it's ...

37. HTML form validation using javascript    sitepoint.com

I am writing an html form and have a javascript validation document. In the form, there are 3 radio buttons and you must select one of them, if you choose the 3rd one, I want to make it compulsory that you fill in the additional information in a text field. This is the code for the section of the form:

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