Hi and sorry for my bad English
I have a contact page and i am using javascript to make a "captcha". so peaople must make a math and if thats correct they can send me a e-mail. Now my problem is that javasctipt give a alert that the math is wrong or not filled but the e-mail is still seended.
my html:
<script type="text/javascript">
function validate () {
var ta = document.getElementById("ta").value;
var answer = document.getElementById("answer").value;
var digit1 = parseInt(document.getElementById("digit1").innerHTML);
var digit2 = parseInt(document.getElementById("digit2").innerHTML);
var sum = digit1+ digit2;
if (answer === null || answer === "") {
alert("reken de cijfers uit");
return false;
} else if (answer != sum){
alert("je som is fout");
} else if (ta === null || ta === ""){
alert("schrijf een bericht");
} else {
document.getElementById("answer").innerHTML = "bezig met sturen";
document.getElementById("answer").innerHTML = "";
}
}
function randNums () {
var rand_num1 = Math.floor(Math.random()*10)+1;
var rand_num2 = Math.floor(Math.random()*10)+1;
document.getElementById("digit1") .innerHTML=rand_num1;
document.getElementById("digit2") .innerHTML=rand_num2;
}
</script>
<body onload="randNums() ;">
<form action="/cgi-bin/form.cgi" method="POST" onsubmit="return validate ();">
<input type="hidden" name="DEBUG" value="0">
<input type="hidden" name="MAILFILE" value="peymankarimi/form/sjabloon.txt">
<input type="hidden" name="MAILTO" value="peyman_50#hotmail.com">
<input type="hidden" name="REPLYFAULT" value="peymankarimi/form/formulier.html">
<input type="hidden" name="REPLYOK" value="peymankarimi/form/verzonden.html">
<table border="0" width="374" id="contactformulier">
<tr>
<td width="137">Naam:</td>
<td width="230"><input type="text" size="31" name="naam" placeholder="Naam"></td>
</tr>
<tr>
<td width="137">Voornaam:</td>
<td width="230"><input type="text" size="31" name="voornaam" placeholder="Voornaam"></td>
</tr>
<tr>
<td width="137">Woonplaats:</td>
<td width="230"><input type="text" size="31" name="woonplaats" placeholder="Woonplaats"></td>
</tr>
<tr>
<td width="137">Telefoonnummer:</td>
<td width="230"><input type="text" size="31" name="telefoon" placeholder="Telefoonnummer"> </td>
</tr>
<tr>
<td width="137">E-mailadres: <br></br></td>
<td width="230">
<input type="text" size="31" name="MAILFROM" placeholder="E-mailadres"> <br></br> </td>
</tr>
</tr>
<tr>
<td width="137">Onderwerp:</td>
<td width="230"><input type="text" size="31" maxlength="30" name="SUBJECT"> </td>
</tr>
<tr>
<td colspan="2">Uw vragen, opmerkingen, suggesties, ... :<br>
<textarea id="ta" name="omschrijving" rows="6" cols="43" ></textarea>
<br />
<strong> Tel deze cijfers op </strong>
<span id="digit1"> </span> +
<span id="digit2"> </span> =
<input type="text" id="answer" size="2"; />
<br />
<p align="right"><input type="submit" name="cmdVerzenden" value="Verzenden">
<input type="reset" name="cmdWissen" value="Wissen"></td>
</form>
</tr>
</table>
</form>
</body>
Your validate function needs to return false on all errors to stop the form from submitting. You only seem to have it for one error.
function validate () {
var ta = document.getElementById("ta").value;
var answer = document.getElementById("answer").value;
var digit1 = parseInt(document.getElementById("digit1").innerHTML);
var digit2 = parseInt(document.getElementById("digit2").innerHTML);
var sum = digit1+ digit2;
if (answer === null || answer === "") {
alert("reken de cijfers uit");
return false;
} else if (answer != sum){
alert("je som is fout");
return false;
} else if (ta === null || ta === ""){
alert("schrijf een bericht");
return false;
} else {
document.getElementById("answer").innerHTML = "bezig met sturen";
document.getElementById("answer").innerHTML = "";
}
}
Related
I am checking the form validation where the text area can't contain any numbers. But when I delete any text from the text area(when it is empty) the pop-up is showing again. I want to show the pop-up only for numbers.
function validate() {
var re = /^[A-Za-z]+$/;
if (re.test(document.getElementById('student_name').value)) {
return true;
} else {
alert('Numbers are not allowed.');
}
var element = document.getElementById('student_name');
element.value = element.value.replace(/[^a-zA-Z]+/, "");
}
<body>
<form action="" method="POST">
<tr>
<td width="40%" colspan="2">Name of the student<br>
</td>
<td width="60%" colspan="2">
<p align="left"><input type="text" name="Student_Name" size="20" autocomplete="off" id="student_name" oninput="validate()">
</p>
</td>
</tr>
</form>
</body>
You need to change your regex from /^[A-Za-z]+$/ to /^[A-Za-z]*$/.
Notice the difference between the + and * character,
+ matches one or more characters, so won't match an empty string.
Whereas * matches zero or more characters, so will match an empty string.
function validate() {
var re = /^[A-Za-z]*$/;
if (re.test(document.getElementById('student_name').value)) {
return true;
} else {
alert('Numbers are not allowed.');
}
var element = document.getElementById('student_name');
element.value = element.value.replace(/^[A-Za-z]*$/, "");
}
<body>
<form action="" method="POST">
<tr>
<td width="40%" colspan="2">Name of the student<br>
</td>
<td width="60%" colspan="2">
<p align="left"><input type="text" name="Student_Name" size="20" autocomplete="off" id="student_name" oninput="validate()">
</p>
</td>
</tr>
</form>
</body>
Something like this will work? I'm sure there's a better option, though.
function validate() {
var re = /^[A-Za-z]+$/;
if (re.test(document.getElementById('student_name').value) || document.getElementById('student_name').value === "" ) {
return true;
} else {
alert('Numbers are not allowed.');
}
var element = document.getElementById('student_name');
element.value = element.value.replace(/[^a-zA-Z]+/, "");
}
<body>
<form action="" method="POST">
<tr>
<td width="40%" colspan="2">Name of the student<br>
</td>
<td width="60%" colspan="2">
<p align="left"><input type="text" name="Student_Name" size="20" autocomplete="off" id="student_name" oninput="validate()">
</p>
</td>
</tr>
</form>
</body>
change the digits regex pattern to match on digits instead
change the if statement according to the regex
evaluate the cleanup with the same regex
full code:
function validate()
{
var re = /\d/;
if(!re.test(document.getElementById('student_name').value))
{
return true;
}
else
{
alert('Numbers are not allowed.');
}
var element=document.getElementById('student_name');
element.value=element.value.replace(re,"");
}
<body>
<form action="" method="POST">
<tr>
<td width="40%" colspan="2">Name of the student<br>
</td>
<td width="60%" colspan="2">
<p align="left"><input type="text" name="Student_Name" size="20" autocomplete="off" id="student_name" oninput="validate()">
</p>
</td>
</tr>
</form>
</body>
Good evening,
I currently have a HTML Form with a script to validate the field have data entry into them however after it validating all fields are filled it doesnt submit, can anybody please advise what is wrong? New to this so learning and would really appreciate any help possible.
I have attached the code im using below.
<div id="form">
<form name="contact" method="post" action="contact.php" onsubmit="return !!(validatename()&validateemail()&validatecomments()&validateRecaptcha());">
<table width="450px">
<tr>
<td valign="top"><label for="name">Name</label></td>
<td valign="top"><input type="text" name="name" maxlength="50" size="30"></td>
</tr>
<tr>
<td valign="top"><label for="email">Email Address</label></td>
<td valign="top"><input type="text" name="email" maxlength="80" size="30"></td>
</tr>
<tr>
<td valign="top"><label for="comments">Comments</label></td>
<td valign="top"><textarea name="comments" maxlength="1000" cols="32" rows="8"></textarea></td>
</tr>
<tr>
<td colspan="2" style="text-align:center">
<div id="form" class="g-recaptcha" data-sitekey="6LdcZFkUAAAAAFoHAYtupqKzCgd2T9XzHZFj8XNw"></div>
<input type="image" src="images/submit.png" alt="Submit">
</td>
</tr>
</table>
</form>
<script>
function validatename()
{
if( document.contact.name.value == "" )
{
alert( "Please provide your name!" );
document.contact.name.focus() ;
return false ;
}
}
function validateemail()
{
if( document.contact.email.value == "" )
{
alert( "Please provide your email address!" );
document.contact.email.focus() ;
return false ;
}
}
function validatecomments()
{
if( document.contact.comments.value == "" )
{
alert( "Please provide your comments!" );
document.contact.comments.focus() ;
return false ;
}
}
function validateRecaptcha() {
var response = grecaptcha.getResponse();
if (response.length === 0) {
alert("You need to fill the captcha");
return false ;
}
}
</script>
This is one way how you could do it:
function validatename() {
if (document.contact.name.value == "") {
alert("Please provide your name!");
document.contact.name.focus();
return false;
}
else {
return true;
}
}
function validateemail() {
if (document.contact.email.value == "") {
alert("Please provide your email address!");
document.contact.email.focus();
return false;
}
else {
return true;
}
}
function validatecomments() {
if (document.contact.comments.value == "") {
alert("Please provide your comments!");
document.contact.comments.focus();
return false;
}
else {
return true;
}
}
function validateRecaptcha() {
var response = grecaptcha.getResponse();
if (response.length === 0) {
alert("You need to fill the captcha");
return false ;
}
else {
return true;
}
}
document.getElementById('my-form').addEventListener('submit', function(e) {
e.preventDefault();
if (validatename() && validateemail() && validatecomments() && validateRecaptcha()) {
var formValidation = true;
}
else {
var formValidation = false;
}
if (formValidation) {
this.submit();
}
});
<div id="form">
<form id="my-form" name="contact" method="post" action="contact.php">
<table width="450px">
<tr>
<td valign="top"><label for="name">Name</label></td>
<td valign="top"><input type="text" name="name" maxlength="50" size="30"></td>
</tr>
<tr>
<td valign="top"><label for="email">Email Address</label></td>
<td valign="top"><input type="text" name="email" maxlength="80" size="30"></td>
</tr>
<tr>
<td valign="top"><label for="comments">Comments</label></td>
<td valign="top"><textarea name="comments" maxlength="1000" cols="32" rows="8"></textarea></td>
</tr>
<tr>
<td colspan="2" style="text-align:center">
<div id="form" class="g-recaptcha" data-sitekey="6LdcZFkUAAAAAFoHAYtupqKzCgd2T9XzHZFj8XNw"></div>
<input type="image" src="images/submit.png" alt="Submit">
</td>
</tr>
</table>
</form>
</div>
To make it work correctly, make sure that grecaptcha is defined.
I have two forms inside my body:
<body>
<form method=post name="signin">
<table>
<theader>Sign In</theader>
<tr>
<td>Email:</td>
<td>
<input type=text length=25 maxlength=25 name=em id=em />
</td>
</tr>
<tr>
<td>Password:</td>
<td>
<input type=password length=15 maxlength=15 name=up id=up />
</td>
</tr>
<tr>
<td colspan=2>
<input type=button value="submit" />
</td>
</tr>
</table>
</form>
<br>
<br>
<br>
<br>
<form method=post name="register">
<table>
<theader>Don't have an account? Register, it's Free!</theader>
<tr>
<td>Email:</td>
<td>
<input type=text length=25 name=email id=email /><span id="nameerror"></span>
</td>
</tr>
<tr>
<td>Password:</td>
<td>
<input type=password length=15 name=pass id=pass />
</td>
</tr>
<tr>
<td>Confirm Password:</td>
<td>
<input type=password length=15 name=cpass id=cpass /><span id="pwerror"></span>
</td>
</tr>
<tr>
<td>Account Type:</td>
<td>
<select id="seltype">
<option name=standard SELECTED>Standard</option>
<option name=admin>Administrator</option>
</td>
</tr>
<tr>
<td colspan=2>
<input type=button value="submit" onClick="JavaScript:validate();" />
</td>
</tr>
</table>
</form>
</body>
I would like to do the following:
For each form, validate to ensure it's filled in and also for the second form I want to validate that the two password matched. I have the following:
$( document ).ready(function() {
var t = document.getElementById("email").value;
var y = document.getElementById("seltype").value;
var k = document.getElementById("pass").value;
var j = document.getElementById("cpass").value;
$('#cpass').blur(function(){
if (k != j) {
document.getElementById("pwerror").innerHTML = "Password does not match";
}
else {
document.getElementById("pwerror").innerHTML = "Password matches";
}
});
});
function validate() {
if (t != null && y != null && k != null && j != null) {
}
if (t == "" || y == "" || k == "" || j == "") {
alert("fill in");
}
}
I preferred not to mix native JavaScript and validated using pure jQuery only. One of the benefits here is that the empty field check would work for any <form> since it's not tied to any particular form, input name or ids.
$( document ).ready(function() {
$( 'form' ).submit(function(event) {
var $form = $( this );
var checkPass = true;
$form.find( 'input' ).each(function( i, e) {
if (e.value.length === 0) {
event.preventDefault();
alert(e.name + " cannot be empty");
return (checkPass = false);
}
});
if( checkPass && $form.is( '[name="register"]' ) ) {
if( $form.find( '#pass').val() !== $form.find( '#cpass' ).val()) {
event.preventDefault();
alert( 'Passwords do not match.' );
}
}
});
});
Working Demo at JsFiddle.net
Basics:
If you want to check if a variable is not null, ideally, you should use !== & not !=.
If you want to check if a variable is "", ideally, you should use === and not ==.
Check out: http://www.w3schools.com/js/js_comparisons.asp
Use JSFiddle.net to give a better working example of your code WHICH can help others see a demo of your actual code.
Your code currently has lot of scope for optimization. Since its just a basic validation you are trying to achieve, why do you need to use jQuery? Why not just use JavaScript basic variable comparisons?
Google before you ask here. If its so straightforward, your question will get downvoted.
Alert is not the best way to notify the user to fill in. For example, your 'Password Matches' or 'Password Doesn't Match' div is a much better way to notify the user. Use Form Events to validate the form as the user is already filling in the details in the form!
Question responsibly by giving your exact problems and not just pasting the code! How would we know where you are facing a problem.
Variables work in Scope. Check the scope of variable before using them in different functions. For example, you define var t, y, k, j in first function and use it in second function - will throw up an error of undefined variable t.
From what information you provided, here's what I could help with:
HTML:
<form method=post name="signin">
<table>
<theader>Sign In</theader>
<tr>
<td>Email:</td>
<td>
<input type=text length=25 maxlength=25 name=em id=em />
</td>
</tr>
<tr>
<td>Password:</td>
<td>
<input type=password length=15 maxlength=15 name=up id=up />
</td>
</tr>
<tr>
<td colspan=2>
<input type=button value="submit" onclick="javascript:validateSignin()" />
</td>
</tr>
</table>
</form>
<br>
<br>
<br>
<br>
<form method=post name="register">
<table>
<theader>Don't have an account? Register, it's Free!</theader>
<tr>
<td>Email:</td>
<td>
<input type=text length=25 name=email id=email /><span id="nameerror"></span>
</td>
</tr>
<tr>
<td>Password:</td>
<td>
<input type=password length=15 name=pass id=pass />
</td>
</tr>
<tr>
<td>Confirm Password:</td>
<td>
<input type=password length=15 name=cpass id=cpass /><span id="pwerror"></span>
</td>
</tr>
<tr>
<td>Account Type:</td>
<td>
<select id="seltype">
<option name=standard SELECTED>Standard</option>
<option name=admin>Administrator</option>
</td>
</tr>
<tr>
<td colspan=2>
<input type=button value="submit" onClick="JavaScript:validateRegister();" />
</td>
</tr>
</table>
</form>
JS:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js" ></script>
<script type="text/javascript">
$(document).ready(function () {
$('#cpass').blur(function () {
if (k != j) {
document.getElementById("pwerror").innerHTML = "Password does not match";
} else {
document.getElementById("pwerror").innerHTML = "Password matches";
}
});
});
function validateRegister() {
var t = document.getElementById("email").value;
var y = document.getElementById("seltype").value;
var k = document.getElementById("pass").value;
var j = document.getElementById("cpass").value;
if (t !== null && y !== null && k !== null && j !== null) {}
if (t === "" || y === "" || k === "" || j === "") {
alert("fill in");
}
}
function validateSignin() {
var se= document.getElementById("em").value;
var sp= document.getElementById("up").value;
if (se !== null && sp !== null){ }
if (se === "" || sp === "") {
alert("fill in");
}
}
</script>
Hope it helps! :)
I need to do a very basic form validation, and my method of choice is jQuery. However, for some reason, the validation function seems not to get fired at all.
After looking at this for several hours I can't find out what the problem is.
HTML:
<form id="form1" name="form1" method="post" action="process.php">
<table width="100%" border="0" cellspacing="5" cellpadding="0">
<tr>
<td width="160">Meno:</td>
<td><input type="text" name="meno" id="meno" /></td>
<td width="160">Priezvisko:</td>
<td><input type="text" name="priezvisko" id="priezvisko" /></td>
</tr>
<tr>
<td width="160">Názov spolocnosti: <br />
<span class="register_comment">(nevyplnajte ak nie ste podnikatel)</span></td>
<td><input type="text" name="spolocnost" id="spolocnost" /></td>
<td width="160">Krajina:</td>
<td><select name="krajina" id="krajina">
<option value="" selected="selected"> </option>
<option value="cz">Ceská republika</option>
<option value="sk">Slovenská republika</option>
</select></td>
</tr>
<tr>
<td width="160">Adresa:</td>
<td><input type="text" name="adresa" id="adresa" /></td>
<td width="160">Mesto:</td>
<td><input type="text" name="mesto" id="mesto" /></td>
</tr>
<tr>
<td width="160">Email:<br />
<span class="register_comment">(na tento email Vám príde potvrdenie)</span></td>
<td><input type="text" name="email" id="email" /></td>
<td width="160">Telefonický kontakt:<br />
<span class="register_comment">(uvádzajte kontakt na mobilný telefón na ktorom budete zastihnutelní najmä 10.10.!)</span></td>
<td><input type="text" name="telefon" id="telefon" /></td>
</tr>
<tr>
<td width="160">Miesto nástupu: </td>
<td colspan="3"><select name="nastup" id="nastup">
<option value="" selected="selected"> </option>
<option value="nr">Nitra</option>
<option value="ba">Bratislava</option>
<option value="br">Brno - Avion Shopping Park, Škandinávská 128/2</option>
<option value="ph">Praha - Avion Shopping Park, Škandinávská 15/A</option>
<option value="pl">Plzen - OC Olympia, Písecká 972/1</option>
</select></td>
</tr>
<tr>
<td colspan="4"><p>
<label>
<input type="checkbox" name="suhlas" value="checkbox" id="suhlas" />
Oboznámil som sa s podmienkami úcasti a Súhlasím s podmienkami úcasti </label>
FLEX Polishing Camp<br />
</p></td>
</tr>
<tr>
<td colspan="4" align="center"><input type="submit" id="button" value="Odoslat záväznú prihlášku na FLEX Polishing Camp" style="width:500px;" /></td>
</tr>
<tr>
<td colspan="4" class="register_comment">xxxx</td>
</tr>
</table>
</form>
jQuery:
<script>
$("#form1").submit(function() {
var errors = new array();
if ($('input[name=meno]').val() == "") {
errors.push('Meno je povinná položka.');
}
if ($('input[name=priezvisko]').val() == "") {
errors.push('Priezvisko je povinná položka.');
}
if ($('input[name=krajina]').val() == "") {
errors.push('Je nutné vybrať si krajinu - ČR alebo SR.');
}
if ($('input[name=adresa]').val() == "") {
errors.push('Adresa je povinná položka.');
}
if ($('input[name=mesto]').val() == "") {
errors.push('Mesto je povinná položka.');
}
if ($('input[name=email]').val() == "") {
errors.push('Email je povinná položka.');
}
if ($('input[name=telefon]').val() == "") {
errors.push('Telefonický kontakt je povinná položka.');
}
if ($('input[name=nastup]').val() == "") {
errors.push('Telefonický kontakt je povinná položka.');
}
if (!$('#suhlas').attr('checked')) {
errors.push('Je potrebné vysloviť súhlas s podmienkami zaškrtnutím tlačítka "Oboznámil som sa s podmienkami účasti a Súhlasím s podmienkami účasti FLEX Polishing Camp".');
}
if ( errors.lenght > 0 )
{
var text;
for (var i = 0; i < errors.length; i++) {
text = text + errors[i] + '\n';
};
alert(text);
return false;
}
return true;
});
</script>
$("form1") should be $("#form1")
As other mention you have missed the # for your ID selector, you can also use map method and minify your code.
$("#form1").submit(function() {
var errors = [];
errors = $('input[type=text]', this).filter(function(){
return $.trim(this.value) == "";
}).map(function() {
return this.name + ' je povinná položka.';
}).get();
if (errors.length) {
var text = errors.join('\n');
alert(text);
return false;
}
});
http://jsfiddle.net/bwVWQ/
First $("form1") should be $("#form1")
//Secondly
text = text + arr[i] + '\n';
//Should be
text = text + errors[i] + '\n'; OR text += errors[i] + '\n';
Looks like the Updated code has again a typo in it..
This might be preventing it
if ( errors.lenght > 0 ) // Supposed to be errors.length
You are missing the # sign on your selector, #form1
$("#form1").submit(function() {
The code is very simple. But this is the first thing off this kind that I am doing, and I simply do not understand what it is that I am doing wrong.
Also this is the raw code straight from OCR.
This is GCSE computing coursework. I don't have to fix it, but I don't know how I'm supposed to test the stuff I'm going to add without the base code working.
<head>
<title>Exam entry</title>
<script language="javascript" type="text/javascript">
function validateForm(document) {
var result = true;
var msg = "";
if (document.ExamEntry.name.value == "") {
msg += "You must enter your name \n";
document.ExamEntry.name.focus();
document.getElementById(‘name’).style.color = "red";
result = false;
}
if (document.ExamEntry.subject.value == "") {
msg += "You must enter the subject \n";
document.ExamEntry.subject.focus();
document.getElementById(‘subject’).style.color = "red";
result = false;
}
if (msg == "") {
return result;
} {
alert(msg)
return result;
}
}
</script>
</head>
<body>
<h1>Exam Entry Form</h1>
<form name="ExamEntry" method="post" action="success.html">
<table width="50%" border="0">
<tr>
<td id="name">Name</td>
<td>
<input type="text" name="name" />
</td>
</tr>
<tr>
<td id="subject">Subject</td>
<td>
<input type="text" name="subject" />
</td>
</tr>
<tr>
<td>
<input type="submit" name="Submit" value="Submit" onclick= return "validateForm()"; />
</td>
<td>
<input type="reset" name="Reset" value="Reset" />
</td>
</tr>
</table>
</form>
</body>
Your code has couple of syntax errors. I have removed that.
here is the fiddle link
<h1>Exam Entry Form</h1>
<form name="ExamEntry" method="post" action="success.html">
<table width="50%" border="0">
<tr>
<td id="name">Name</td>
<td>
<input type="text" name="name" />
</td>
</tr>
<tr>
<td id="subject">Subject</td>
<td>
<input type="text" name="subject" />
</td>
</tr>
<tr>
<td>
<input type="submit" name="Submit" value="Submit" onclick= " return validateForm();" /><!--js function inside quotes-->
</td>
<td>
<input type="reset" name="Reset" value="Reset" />
</td>
</tr>
</table>
</form>
<script>
//function had illegal parameter
function validateForm() {
var result = true;
var msg = "";
if (document.ExamEntry.name.value == "") {
msg += "You must enter your name \n";
document.ExamEntry.name.focus();
document.getElementById('name').style.color = "red";
// document.getElementById(‘name’).style.color = "red";--->Id should be in quotes
result = false;
}
if (document.ExamEntry.subject.value == "") {
msg += "You must enter the subject \n";
document.ExamEntry.subject.focus();
document.getElementById('subject').style.color = "red";
// document.getElementById(‘subject’).style.color = "red";--->Id should be in quotes
result = false;
}
if (msg == "") {
return result;
} {
alert(msg);
return result;
}
}
</script>