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Clear form using a checkbox

I am trying to use a checkbox to clear a form but I do not want the reset to clear the checkbox itself. The code I am using is as follows:
<input name="no_cage" id="no_cage" type="checkbox" value="1" onclick="this.form.reset();">
When I click on the checkbox it clears the form fine but unfortunately, also clear itself too.
The checkbox also updates a db with a 1 if checked or a 0 if unchecked. So I need it within the form and it needs to be able to toggle between checked and unchecked.

There are two ways to do this:
Create a javascript function to reset the form and then check the checkbox again to true.
Using JQuery:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).on('change', '#no_cage', function() {
if(this.checked) {
document.getElementById("client").reset();
this.checked = true;
}
});
</script>
<form id="client">
<input type="text">
<input id="no_cage" type="checkbox" value="1"> CLEAR
</form>
Using Javascript:
<script type="text/javascript">
function clearform(){
if (document.getElementById("no_cage").checked == true){
document.getElementById("client").reset();
document.getElementById("no_cage").checked = true;
}
}
</script>
<form id="client">
<input type="text">
<input id="no_cage" type="checkbox" onclick="javascript:clearform();"> CLEAR
</form>
OR,
keep the checkbox out of the form
<script type="text/javascript">
function clearform(){
document.getElementById("client").reset();
}
</script>
<form id="client">
<input type="text">
</form>
<input id="no_cage" type="checkbox" value="1" onclick="javascript:clearform();"> CLEAR

I don't know if you want it this way, but I change the code that if checkbox is checked than clear form else it won't. Here the code
<form id ="myForm" name = "test">
<input type ="text"/>
<input type ="text"/>
<input type ="text"/>
<input type ="text"/>
</form>
<input name="no_cage" id="no_cage" type="checkbox" onclick="resetForm()">
<script type="text/javascript">
function resetForm()
{
if (document.getElementById("no_cage").checked == true)
{
document.getElementById("myForm").reset();
}
}
</script>

<form id="myForm">
First name: <input type="text" name="fname"><br>
Last name: <input type="text" name="lname"><br><br>
<input type="checkbox" id="box"onclick="myFunction()" value="Reset form">reset
</form>
<script>
function myFunction() {
document.getElementById("myForm").reset();
document.getElementById("box").checked = true;
}</script>
hope it helps

JavaScript Form - changeable URL's for the submit button

I need to make a form, example:
<form id="myform" name="myform" method="get">
<input type="radio" checked="checked" name="Answer" value="yes" />Yes
<input type="radio" name="Answer" value="no" />No
<input id="submit" name="submit" src="images/submit.jpg" type="image" />
</form>
Questions:
1. How can I set a URL to the submit button (on click)?
2. How can i change this URL depending on when the user selects either the Yes or No answer?

Set the form action attribute to the YES URL
$('input:radio').on('click', function(){
if($(this).val() == "yes"){
$('#myform').attr('action', 'YES_URL');
}
else {
$('#myform').attr('action', 'NO_URL');
}
});

A submit button fires the event submit to a adress that is defined in the action attribute from form tag. So here comes one option:
<script type="text/javascript">
function mytarget ()
{
var myFormObject = document.myforma;
var chk = false;
for (i = 0; i < myFormObject.Answer.length; i++)
{
if (myFormObject.Answer[i].checked && myFormObject.Answer[i].value == 'yes')
{
myFormObject.action = "http://urltforthevalueYes.com";
chk = true;
break;
} else if (myFormObject.Answer[i].checked && myFormObject.Answer[i].value == 'no') {
myFormObject.action = "http://urltforthevalueNo.com";
chk = true;
break;
}
}
if (chk == true) {myFormObject.submit();} else {alert("Please select an option");}
}
</script>
Update:
I had to change my javascript code because there was two mistakes in there. Also added the new HTML code.
Changes you have to do:
add the action attribute to the open form tag <form id="myform" name="myform" method="get" action="">
Change the name of your submit button. The use of submit creates a conflict between your button and the javascript function <input id="send" name="send" src="images/submit.jpg" type="image" />
Add at you submit button the attribute onClick with the reference to the method mytarget() <input id="send" name="send" src="images/submit.jpg" type="image" onClick="mytarget()"/>

uncheck one checkbox as another is checked and submit the form

I am trying to combine two javascript functions into one function.
So, I have this chunk of code:
<form name="form1" action="testing_page2.php" method="GET">
<p><input id="Main" type="checkbox" name="Main" value="1" onClick="javascript:uncheckSecondary(this);" />Main</p>
<p><input id="Secondary" type="checkbox" name="Secondary" value="2" />Secondary</p>
</form>
<script language="javascript" type="text/javascript">
function uncheckSecondary(obj)
{
if (obj.checked == true)
{
document.getElementById("Secondary").checked = false;
}
}
</script>
Here, when the page loads, the Secondary checkbox will be checked (I have an if clause there, but it is not related to my question) , but Main is not checked.
As I check the Main checkbox, Secondary is unchecked.
And also I have another piece of code:
<script language="javascript">
function checkRefresh(value)
{
document.form1.submit();
}
</script>
<form name="form1" action="testing_page2.php" method="GET">
<p><input id="Main" type="checkbox" name="Main" value="1" onClick="this.form.submit();"/>Main</p>
<p><input id="Secondary" type="checkbox" name="Secondary" value="2" onClick="this.form.submit();"/>Secondary</p>
</form>
Here, as I check/uncheck any of checkboxes, the form is submitted.
Edited:
What I want is to combine function checkRefresh(value) and function uncheckSecondary(obj) , so that when I check Main, the Secondary is unchecked and form is submitted, and vice versa.

Try this piece of code...
<script>
function checkRefresh(value)
{
document.form1.submit();
}
function uncheck(check)
{
var prim = document.getElementById("Main");
var secn = document.getElementById("Secondary");
if (prim.checked == true && secn.checked == true)
{
if(check == 1)
{
secn.checked = false;
checkRefresh();
}
else if(check == 2)
{
prim.checked = false;
checkRefresh();
}
}
}
</script>
<form name="form1" action="#" method="POST">
<p><input id="Main" type="checkbox" name="Main" value="1" onClick="uncheck(1);"/>Main</p>
<p><input id="Secondary" type="checkbox" name="Secondary" value="2" onClick="uncheck(2)"/>Secondary</p>
</form>
It will submit the form only when the condition applies as you stated.
Welcome to Javascript.

<form name="form1" action="#" method="POST">
<p><input id="Main" type="checkbox" name="Main" value="1" onClick="if (this.checked) document.getElementById('Secondary').checked = false; this.form.submit();"/>Main</p>
<p><input id="Secondary" type="checkbox" name="Secondary" value="2" onClick=""/>Secondary</p>
</form>

Yes/No-form on fancybox

My question is, how to determine if user press to 'yes' or 'no'
Here is a html
<form id="delFrm" method="post">
<label>Do you want delete?</label>
<input type="submit" name="yes" id="yes" value="yes" />
<input type="submit" name="no" id="no" value="no" />
</form>
and here is jquery/js
<script type="text/javascript">
$(document).ready(function() {
$('#delFrm').submit(function(){
var yes = true;//how to define it??????
if(yes) {
//sent ajax to delete the data
} else {
//close close the form on a fancybox
}
return false;
});
});
</script>
Thank you

Change slightly your markup: since the 'no' button doesn't need to perform an ajax call you could simply write
<form id="delFrm" method="post">
<label>Do you want delete?</label>
<input type="submit" name="yes" id="yes" value="yes" />
<button type="button" id="no">No</button>
</form>
and your js code could be simplified as
<script type="text/javascript">
$(document).ready(function() {
$('#delFrm').submit(function(evt){
evt.preventDefault();
//sent ajax to delete the data
});
});
</script>
then create another handler for the 'no' button (which closes your fancybox)

Try this if you have to call execute some statements to close the ajax form:
<form id="delFrm" method="post">
<label>Do you want delete?</label>
<input type="submit" name="yes" id="yes" value="yes" />
<input type="button" name="no" id="no" value="no" />
</form>
And
<script type="text/javascript">
$(document).ready(function() {
$('#delFrm').submit(function(){
//sent ajax to delete the data
return false;
});
$('#no').click(function(){
//close close the form on a fancybox
return false;
});
});
</script>
Hope it helps :)

you dont need to change your html just do the following
<script type="text/javascript">
$(document).ready(function() {
var answer = "";
$('input[type=submit]').click(function(e) {
e.preventDefault();
answer = $(this).attr('name');
if(asnwer == 'yes') {
// sent ajax to delete the data
} else {
// close close the form on a fancybox
}
return false;
});
});
</script>
It is simple like this..

Simple JavaScript Checkbox Validation

I usually work with PHP so sadly don't have some basic JS principles down. This is all I want to accomplish--I've seen many posts on this topic but they are usually beyond what I need.
Here is my form:
<input type="checkbox" name="checkbox" value="check" />
<input type="submit" name="email_submit" value="submit" onclick="----??----" />
The checkbox is a simple "I agree". I want the submit button to be pressed and it will only submit if that check box is selected.
Here's the thing: I want the simple, cheating way -- no methods -- just some inline code in that form (assuming its not overly long?). This is not a public page, I just need something quick and simple with that type of validation. If its unchecked, it will throw an alert(); if its checked it will submit via post through php and go on as normal.

You could use:
if(!this.form.checkbox.checked)
{
alert('You must agree to the terms first.');
return false;
}
(demo page).
<input type="checkbox" name="checkbox" value="check" />
<input type="submit" name="email_submit" value="submit" onclick="if(!this.form.checkbox.checked){alert('You must agree to the terms first.');return false}" />
Returning false from an inline event handler will prevent the default action from taking place (in this case, submitting the form).
! is the Boolean NOT operator.
this is the submit button because it is the element the event handler is attached to.
.form is the form the submit button is in.
.checkbox is the control named "checkbox" in that form.
.checked is true if the checkbox is checked and false if the checkbox is unchecked.

For now no jquery or php needed. Use just "required" HTML5 input attrbute like here
<form>
<p>
<input class="form-control" type="text" name="email" />
<input type="submit" value="ok" class="btn btn-success" name="submit" />
<input type="hidden" name="action" value="0" />
</p>
<p><input type="checkbox" required name="terms">I have read and accept SOMETHING Terms and Conditions</p>
</form>
This will validate and prevent any submit before checkbox is opt in. Language independent solution because its generated by users web browser.

You can do something like this:
<form action="../" onsubmit="return checkCheckBoxes(this);">
<p><input type="CHECKBOX" name="MyCheckbox" value="This..."> This...</p>
<p><input type="SUBMIT" value="Submit!"></p>
</form>
<script type="text/javascript" language="JavaScript">
<!--
function checkCheckBoxes(theForm) {
if (
theForm.MyCheckbox.checked == false)
{
alert ('You didn\'t choose any of the checkboxes!');
return false;
} else {
return true;
}
}
//-->
</script>
http://lab.artlung.com/validate-checkbox/
Although less legible imho, this can be done without a separate function definition like this:
<form action="../" onsubmit="if (this.MyCheckbox.checked == false) { alert ('You didn\'t choose any of the checkboxes!'); return false; } else { return true; }">
<p><input type="CHECKBOX" name="MyCheckbox" value="This..."> This...</p>
<p><input type="SUBMIT" value="Submit!"></p>
</form>

You can do the following:
<form action="/" onsubmit="if(document.getElementById('agree').checked) { return true; } else { alert('please agree'); return false; }">
<input type="checkbox" name="checkbox" value="check" id="agree" />
<input type="submit" name="email_submit" value="submit" />
</form>​
Here is a working demo - http://jsfiddle.net/Ccr2x/

If your checkbox has an ID of 'checkbox':
if(document.getElementById('checkbox').checked == true){ // code here }
HTH

var confirm=document.getElementById("confirm").value;
if((confirm.checked==false)
{
alert("plz check the checkbox field");
document.getElementbyId("confirm").focus();
return false;
}

If the check box's ID "Delete" then for the "onclick" event of the submit button the javascript function can be as follows:
html:
<input type="checkbox" name="Delete" value="Delete" id="Delete"></td>
<input type="button" value="Delete" name="delBtn" id="delBtn" onclick="deleteData()">
script:
<script type="text/Javascript">
function deleteData() {
if(!document.getElementById('Delete').checked){
alert('Checkbox not checked');
return false;
}
</script>

Another simple way is to create a function and check if the checkbox(es) are checked or not, and disable a button that way using jQuery.
HTML:
<input type="checkbox" id="myCheckbox" />
<input type="submit" id="myButton" />
JavaScript:
var alterDisabledState = function () {
var isMyCheckboxChecked = $('#myCheckbox').is(':checked');
if (isMyCheckboxChecked) {
$('myButton').removeAttr("disabled");
}
else {
$('myButton').attr("disabled", "disabled");
}
}
Now you have a button that is disabled until they select the checkbox, and now you have a better user experience. I would make sure that you still do the server side validation though.

Another Simple way is to create & invoke the function validate() when the form loads & when submit button is clicked.
By using checked property we check whether the checkbox is selected or not.
cbox[0] has an index 0 which is used to access the first value (i.e Male) with name="gender"
You can do the following:
function validate() {
var cbox = document.forms["myForm"]["gender"];
if (
cbox[0].checked == false &&
cbox[1].checked == false &&
cbox[2].checked == false
) {
alert("Please Select Gender");
return false;
} else {
alert("Successfully Submited");
return true;
}
}
<form onload="return validate()" name="myForm">
<input type="checkbox" name="gender" value="male"> Male
<input type="checkbox" name="gender" value="female"> Female
<input type="checkbox" name="gender" value="other"> Other <br>
<input type="submit" name="submit" value="Submit" onclick="validate()">
</form>
Demo: CodePen

Target it by id and then use this code:
function check(){
if(document.getElementById('yourid').checked
{
return false;
}
else
{
alert ("checkbox not checked");
return false;
}
}

var testCheckbox = document.getElementById("checkbox");
if (!testCheckbox.checked) {
alert("Error Message!!");
}
else {
alert("Success Message!!");
}

Guys you can do this kind of validation very easily. Just you have to track the id or name of the checkboxes. you can do it statically or dynamically.
For statically you can use hard coded id of the checkboxes and for dynamically you can use the name of the field as an array and create a loop.
Please check the below link. You will get my point very easily.
http://expertsdiscussion.com/checkbox-validation-using-javascript-t29.html
Thanks