I want to check if the user selects a radio button. I have coded this:
HTML
<form action="myServlet" method="post">
<input type="radio" id="rating-input-1-5" name="ratingInput1" value="5">
<input type="radio" id="rating-input-1-4" name="ratingInput1" value="4">
<input type="radio" id="rating-input-1-3" name="ratingInput1" value="4">
//etc
<button type="submit" class="myButton" onclick="sendSuccess()">Submit</button>
</form>
JS
function sendSuccess(){
var len = document.formRate.ratingInput1.length;
var flag;
for(i=0; i<len; i++){
if (document.formRate.ratingInput[i].checked){
flag = true;
}
else{
flag = false;
break;
}
}
if(flag === false){
console.log('noooooo');
return false;
}else{
console.log('yesssss');
}
}
But its not working.
You can do it with jQuery using Attribute Equals Selector [name="value"] to find radio button with same name and :checked to get only checked elements. You can use length to check if you get any checked radio button or not. The length will be zero of none of radio button is checked and will be greater then zero if one or more radio button is checked.
Live Demo
if($('[name=ratingInput1]:checked').length)
console.log('Yes');
else
console.log('No');
Working demo http://jsfiddle.net/cXPYQ/
Hope this fit your needs :)
Code
$("form").submit(function () {
var flag = true;
$(':radio').each(function () {
name = $(this).attr('name');
if (flag && !$(':radio[name="' + name + '"]:checked').length) {
alert(name + ' group not checked');
flag = false;
}
});
return flag;
});
try this
<form name="formRate" action="myServlet" method="post">
<input type="radio" id="rating-input-1-5" name="ratingInput1" value="5">
<input type="radio" id="rating-input-1-4" name="ratingInput1" value="4">
<input type="radio" id="rating-input-1-3" name="ratingInput1" value="4">
<button type="submit" class="myButton" onclick="return sendSuccess();">Submit</button>
</form>
function sendSuccess(){
var flag = false;
var len = $('input:radio[name="ratingInput1"]:checked').size();
if(len == 0){
console.log('noooooo');
flag = false;
}else{
console.log('yesssss');
flag = true;
}
return flag;
}
Its a simple form with radio buttons, so all you need is give the form a name formRate, and no need for jQuery, the following will work
HTML
<form name="formRate" action="myServlet" method="post">
<input type="radio" id="rating-input-1-5" name="ratingInput1" value="5">
<input type="radio" id="rating-input-1-4" name="ratingInput1" value="4">
<input type="radio" id="rating-input-1-3" name="ratingInput1" value="4">
<button type="submit" class="myButton" onclick="return sendSuccess();">Submit</button>
</form>
Javascript
function sendSuccess() {
rating = document.forms["formname"]["ratingInput1"].value;
if(rating > 0){
console.log(rating);
}
else {
console.log('No rating');
}
return false;
}
var flag = $('[name="ratingInput1"]').is(':checked');
will return false if no radio with that name is chosen.
Related
I'm just trying to return true/false in one my my jquery methods depending on the check of a 2 radio buttons and if it's selected or not
I've tried several things but have not been able to get this right, it still submit the form without giving error that the buttons are not selected.
HTML Code
<label class="checkout-item" for="payment_1">Cash On Delivery</label>
<input type="radio" name="payment" class="radio" id="payment_1" value="3" iscod="1" onclick="selectPayment(this)">
<label class="checkout-item" for="payment_2">Credit Card / Debit Card</label>
<input type="radio" name="payment" class="radio" id="payment_2" value="9" checked="" iscod="0" onclick="selectPayment(this)">
<label class="checkout-item" for="ECS_NEEDINSURE_1">Home Delivery</label>
<input name="shipping" type="radio" id="ECS_NEEDINSURE_1" value="3" checked="true" supportcod="1" insure="0" class="radio" onclick="selectShipping(this)">
<label class="checkout-item" for="ECS_NEEDINSURE_2">Self-pickup</label>
<input name="shipping" type="radio" id="ECS_NEEDINSURE_2" value="8" supportcod="1" insure="0" class="radio" onclick="selectShipping(this)">
Javascript
function checkOrderForm(frm) {
var paymentSelected = false;
var shippingSelected = false;
// Check whether the payment method is selected
for (i = 0; i < frm.elements.length; i++) {
if (frm.elements[i].name == 'shipping' && frm.elements[i].checked) {
shippingSelected = true;
}
if (frm.elements[i].name == 'payment' && frm.elements[i].checked) {
paymentSelected = true;
}
}
if (!shippingSelected) {
alert(flow_no_shipping);
return false;
}
if (!paymentSelected) {
alert(flow_no_payment);
return false;
}
If I'm understanding your question correctly, you would only like this test to pass if BOTH of the radio buttons are checked. Currently, as long as one radio button in each group is checked, the code variable will be set to true, ignoring the state of the other radio button.
For example, if ONLY one of your shipping radio buttons was checked, the shippingSelected variable would be set to true and it would remain true.
A way to fix this is to begin with shippingSelected and paymentSelected set to true, and if one of the radio buttons are found to be unchecked, the variable will be set to false.
Here's an example:
var paymentSelected = true;
var shippingSelected = true;
// Check whether the payment method is selected
for (i = 0; i < frm.elements.length; i++) {
if (frm.elements[i].name == 'shipping' && !frm.elements[i].checked) {
shippingSelected = false;
}
if (frm.elements[i].name == 'payment' && !frm.elements[i].checked) {
paymentSelected = false;
}
}
You can use $("#payment_1").checked to check whether the radio is checked or not. Similarly you could use other ID's to check whether they are selected or not.
Here is the fiddle:
https://jsfiddle.net/bf8bo43t/
Try below code,
HTML
<form method="post" name="frm_payment_types">
<label class="checkout-item" for="payment_1">Cash On Delivery</label>
<input type="radio" name="payment" class="radio" id="payment_1" value="3" iscod="1" onclick="selectPayment(this)">
<label class="checkout-item" for="payment_2">Credit Card / Debit Card</label>
<input type="radio" name="payment" class="radio" id="payment_2" value="9" iscod="0" onclick="selectPayment(this)">
<label class="checkout-item" for="ECS_NEEDINSURE_1">Home Delivery</label>
<input name="shipping" type="radio" id="ECS_NEEDINSURE_1" value="3" supportcod="1" insure="0" class="radio" onclick="selectShipping(this)">
<label class="checkout-item" for="ECS_NEEDINSURE_2">Self-pickup</label>
<input name="shipping" type="radio" id="ECS_NEEDINSURE_2" value="8" supportcod="1" insure="0" class="radio" onclick="selectShipping(this)">
<br />
<input type="submit" name="submit" onclick="return checkOrderForm();" />
</form>
Javascript
<script type="text/javascript">
function validateForm(){
var payment_1 = document.getElementById('payment_1');
var payment_2 = document.getElementById('payment_2');
var ECS_NEEDINSURE_1 = document.getElementById('ECS_NEEDINSURE_1');
var ECS_NEEDINSURE_2 = document.getElementById('ECS_NEEDINSURE_2');
if((payment_1.checked == true || payment_2.checked == true) && (ECS_NEEDINSURE_1.checked == true || ECS_NEEDINSURE_2.checked == true)){
return true;
}
else if(payment_1.checked == false && payment_2.checked == false){
alert("Please select Cash On Delivery or Credit Card / Debit Card.");
}
else if(ECS_NEEDINSURE_1.checked == false && ECS_NEEDINSURE_2.checked == false){
alert("Please select Home Delivery or Self-pickup.");
}
return false;
}
</script>
I hope the title says everything.
I have a form, with lots of groups of input type radio, and I want the input type submit button to be disabled UNTIL one input type radio from each group has been checked. This example is just one group of input type radio, but it doesn't work obviously. What am I missing?
https://jsfiddle.net/Suiberu/70tkgk5t/
var current = $('input.class_x').filter(':checked');
var sbmtBtn = document.getElementById('SubmitButton');
sbmtBtn.disabled = true;
if (current.length > 0){
sbmtBtn.disabled = false;
}
else{
sbmtBtn.disabled = true;
}
thanks!
The problem with your posted code is that you run the script when the page loads, at which point there are – in your demo – no selected radio-inputs. To make that code work you'd simply need to wrap it in an event-handler for the change event of the radio <input> elements:
// binds the anonymous function of the on() method to act
// as the event-handler for the 'change' event triggered
// on the <input> elements of type=radio:
$('input[type=radio]').on('change', function() {
var current = $('input.class_x').filter(':checked');
var sbmtBtn = document.getElementById('SubmitButton');
sbmtBtn.disabled = true;
if (current.length > 0) {
sbmtBtn.disabled = false;
} else {
sbmtBtn.disabled = true;
}
// fires the 'change' event when the script is
// first run, which sets the disabled property
// of the submit-button appropriately:
}).change();
$('input[type=radio]').on('change', function() {
var current = $('input.class_x').filter(':checked');
var sbmtBtn = document.getElementById('SubmitButton');
sbmtBtn.disabled = true;
if (current.length > 0) {
sbmtBtn.disabled = false;
} else {
sbmtBtn.disabled = true;
}
}).change();
input {
display: block;
margin: 0.5em 0;
}
input[type='submit']:disabled {
color: red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form name="myform" autocomplete="off" method="post">
<input class="class_x" type="radio" name="name_x" value="value_1" id="id_1" />
<input class="class_x" type="radio" name="name_x" value="value_2" id="id_2" />
<input class="class_x" type="radio" name="name_x" value="value_3" id="id_3" />
<input type="submit" name="name_submit" value="OK" class="class_submit" id="SubmitButton" required/>
</form>
JS Fiddle demo.
To work with multiple groups of radio-inputs one, inefficient, approach is to simply use either additional classes, specify the group names, in the selector to identify those groups.
This approach is inefficient simply because you need to know in advance the identifiers for each group of elements, and how many there will be (since you originally hard-coded a number of elements that must be checked in your if statement).
$('input[type=radio]').on('change', function() {
var current = $('input.class_x, input.class_y, input.class_z').filter(':checked');
var sbmtBtn = document.getElementById('SubmitButton');
sbmtBtn.disabled = true;
if (current.length > 2) {
sbmtBtn.disabled = false;
} else {
sbmtBtn.disabled = true;
}
}).change();
input {
display: block;
margin: 0.5em 0;
}
input[type='submit']:disabled {
color: red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form name="myform" autocomplete="off" method="post">
<fieldset>
<input class="class_x" type="radio" name="name_x" value="value_1" />
<input class="class_x" type="radio" name="name_x" value="value_2" />
<input class="class_x" type="radio" name="name_x" value="value_3" />
</fieldset>
<fieldset>
<input class="class_y" type="radio" name="name_y" value="value_1" />
<input class="class_y" type="radio" name="name_y" value="value_2" />
<input class="class_y" type="radio" name="name_y" value="value_3" />
</fieldset>
<fieldset>
<input class="class_z" type="radio" name="name_z" value="value_1" />
<input class="class_z" type="radio" name="name_z" value="value_2" />
<input class="class_z" type="radio" name="name_z" value="value_3" />
</fieldset>
<input type="submit" name="name_submit" value="OK" class="class_submit" id="SubmitButton" required/>
</form>
So, to avoid that inefficiency we'd all prefer it if the code itself could, given a simple selector such as $('input[type=radio]'), determine how many groups there are, and therefore how many elements must be checked to meet the criteria of 'one checked in every group.'
Luckily, the following code does just that:
// we need to use this collection within the event-handler,
// so we're caching it here:
var allRadios = $('input[type=radio]');
// binding the anonymous function as the event-handler for
// the 'change' event, as before:
allRadios.on('change', function() {
// retrieving the names of all radio-inputs on the page,
// using map():
var groups = allRadios.map(function() {
// returning the 'name' property of each of the
// radio-inputs to the created map:
return this.name;
// converting the map into an Array:
}).get(),
// creating an empty Array to hold the unique
// group-names:
uniqueGroupNames = [];
// iterating over the groups Array using the
// Array.prototype.forEach() method:
groups.forEach(function(name) {
// 'name' is a reference to the current Array-element
// of the Array over which we're iterating.
// the name (the current Array-element) is not found
// within the uniqueGroupNames Array:
if (uniqueGroupNames.indexOf(name) === -1) {
// then we add it to that Array:
uniqueGroupNames.push(name)
}
});
// here we find the submit-button, and use the prop()
// method to set its 'disabled' property, using a
// conditional (ternary) operator:
$('input[type=submit]').prop('disabled',
// we find the number of checked radio-inputs and if
// that number is less than the number of unique group
// names the condition evaluates to true and the disabled
// property is sset to true; if the number of checked
// radio-inputs is not less-than the number of group names,
// the condition is false, and the disabled property is set
// to false:
allRadios.filter(':checked').length < uniqueGroupNames.length
);
}).change();
var allRadios = $('input[type=radio]');
allRadios.on('change', function() {
var groups = allRadios.map(function() {
return this.name;
}).get(),
uniqueGroupNames = [];
groups.forEach(function(name) {
if (uniqueGroupNames.indexOf(name) === -1) {
uniqueGroupNames.push(name)
}
});
$('input[type=submit]').prop('disabled', allRadios.filter(':checked').length < uniqueGroupNames.length);
}).change();
input {
display: block;
margin: 0.5em 0;
}
input[type='submit']:disabled {
color: red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form name="myform" autocomplete="off" method="post">
<fieldset>
<input class="class_x" type="radio" name="name_x" value="value_1" />
<input class="class_x" type="radio" name="name_x" value="value_2" />
<input class="class_x" type="radio" name="name_x" value="value_3" />
</fieldset>
<fieldset>
<input class="class_y" type="radio" name="name_y" value="value_1" />
<input class="class_y" type="radio" name="name_y" value="value_2" />
<input class="class_y" type="radio" name="name_y" value="value_3" />
</fieldset>
<fieldset>
<input class="class_z" type="radio" name="name_z" value="value_1" />
<input class="class_z" type="radio" name="name_z" value="value_2" />
<input class="class_z" type="radio" name="name_z" value="value_3" />
</fieldset>
<input type="submit" name="name_submit" value="OK" class="class_submit" id="SubmitButton" required/>
</form>
JS Fiddle demo.
Refrences:
CSS:
:checked pseudo-class.
JavaScript:
Array.prototype.forEach().
Conditional (ternary) Operator.
jQuery:
change().
Filter().
get().
map().
on().
prop().
see updated fiddle
$(document).ready(function () {
var sbmtBtn = document.getElementById('SubmitButton');
sbmtBtn.disabled = true;
$('.class_x').click(function (){
if ($('.class_x').is(':checked')){//if only allow any on of the radio checked
sbmtBtn.disabled= false;
}
else{
sbmtBtn.disabled = true;
}
})
});
You Can use this code for get selected type,
$('#check_id').on('change', '[name=cust_check]', function() {
checkValues = $('input[name=cust_check]:checked').map(function()
{
return $(this).attr('value');
}).get();
});
I have a list of checkboxes, and I need to disable my submit button if none of them are checked, and enable it as soon as at least one gets checked. I see lots of advice for doing this with just a single checkbox, but I'm hung up on getting it to work with multiple checkboxes. I want to use javascript for this project, even though I know there are a bunch of answers for jquery. Here's what I've got - it works for the first checkbox, but not the second.
HTML:
<input type="checkbox" id="checkme"/> Option1<br>
<input type="checkbox" id="checkme"/> Option2<br>
<input type="checkbox" id="checkme"/> Option3<br>
<input type="submit" name="sendNewSms" class="inputButton" disabled="disabled" id="sendNewSms" value=" Send " />
Javascript:
var checker = document.getElementById('checkme');
var sendbtn = document.getElementById('sendNewSms');
// when unchecked or checked, run the function
checker.onchange = function(){
if(this.checked){
sendbtn.disabled = false;
} else {
sendbtn.disabled = true;
}
}
I'd group your inputs in a container and watch that for events using addEventListener. Then loop through the checkboxes, checking their status. Finally set the button to disabled unless our criteria is met.
var checks = document.getElementsByName('checkme');
var checkBoxList = document.getElementById('checkBoxList');
var sendbtn = document.getElementById('sendNewSms');
function allTrue(nodeList) {
for (var i = 0; i < nodeList.length; i++) {
if (nodeList[i].checked === false) return false;
}
return true;
}
checkBoxList.addEventListener('click', function(event) {
sendbtn.disabled = true;
if (allTrue(checks)) sendbtn.disabled = false;
});
<div id="checkBoxList">
<input type="checkbox" name="checkme"/> Option1<br>
<input type="checkbox" name="checkme"/> Option2<br>
<input type="checkbox" name="checkme"/> Option3<br>
</div>
<input type="submit" name="sendNewSms" class="inputButton" disabled="disabled" id="sendNewSms" value=" Send " />
html
<input type="checkbox" class="checkme"/> Option1<br>
<input type="checkbox" class="checkme"/> Option2<br>
<input type="checkbox" class="checkme"/> Option3<br>
<input type="submit" name="sendNewSms" class="inputButton" disabled="disabled" id="sendNewSms" value=" Send " />
js
var checkerArr = document.getElementsByClassName('checkme');
var sendbtn = document.getElementById('sendNewSms');
// when unchecked or checked, run the function
for (var i = 0; i < checkerArr.length; i++) {
checkerArr[i].onchange = function() {
if(this.checked){
sendbtn.disabled = false;
} else {
sendbtn.disabled = true;
}
}
}
I guess this code will help you
window.onload=function(){
var checkboxes = document.getElementsByClassName('checkbox')
var sendbtn = document.getElementById('sendNewSms');
var length=checkboxes.length;
for(var i=0;i<length;i++){
var box=checkboxes[i];
var isChecked=box.checked;
box.onchange=function(){
sendbtn.disabled=isChecked?true:false;
}
}
// when unchecked or checked, run the function
}
<input type="checkbox" id="check1" class="checkbox"/> Option1<br>
<input type="checkbox" id="check2" class="checkbox"/> Option2<br>
<input type="checkbox" id="check3" class="checkbox"/> Option3<br>
<input type="submit" name="sendNewSms" class="inputButton" disabled="disabled" id="sendNewSms" value=" Send " />
Few suggestions
1.Always id should be unique. HTML does not show any error, if you give multiple objects with the same id but when you try to get it by document.getelementbyid it always return the first one,because getelementbyid returns a single element
when there is such requirement, you should consider having a classname or searching through the element name because getelementsbyclassname/tag returns an array
Here in the markup i have added an extra class to query using getelementsbyclassname
To avoid adding extra class, you can also consider doing it by document.querySelectorAll
check the following snippet
window.onload=function(){
var checkboxes = document.querySelectorAll('input[type=checkbox]')
var sendbtn = document.getElementById('sendNewSms');
var length=checkboxes.length;
for(var i=0;i<length;i++){
var box=checkboxes[i];
var isChecked=box.checked;
box.onchange=function(){
sendbtn.disabled=isChecked?true:false;
}
}
// when unchecked or checked, run the function
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="checkbox" id="check1" /> Option1<br>
<input type="checkbox" id="check2" /> Option2<br>
<input type="checkbox" id="check3" /> Option3<br>
<input type="submit" name="sendNewSms" class="inputButton" disabled="disabled" id="sendNewSms" value=" Send " />
Hope this helps
Something like this would do. I'm sure you can do it with less code, but I am still a JavaScript beginner. :)
HTML
<input type="checkbox" class="checkme" data-id="checkMe1"/> Option1<br>
<input type="checkbox" class="checkme" data-id="checkMe2"/> Option2<br>
<input type="checkbox" class="checkme" data-id="checkMe3"/> Option3<br>
<input type="submit" name="sendNewSms" class="inputButton" disabled="disabled" id="sendNewSms" value=" Send " />
JavaScript
//keep the checkbox states, to reduce access to the DOM
var buttonStatus = {
checkMe1: false,
checkMe2: false,
checkMe1: false
};
//get the handles to the elements
var sendbtn = document.getElementById('sendNewSms');
var checkBoxes = document.querySelectorAll('.checkme');
//add event listeners
for(var i = 0; i < checkBoxes.length; i++) {
checkBoxes[i].addEventListener('change', function() {
buttonStatus[this.getAttribute('data-id')] = this.checked;
updateSendButton();
});
}
//check if the button needs to be enabled or disabled,
//depending on the state of other checkboxes
function updateSendButton() {
//check through all the keys in the buttonStatus object
for (var key in buttonStatus) {
if (buttonStatus.hasOwnProperty(key)) {
if (buttonStatus[key] === true) {
//if at least one of the checkboxes are checked
//enable the sendbtn
sendbtn.disabled = false;
return;
}
}
}
//disable the sendbtn otherwise
sendbtn.disabled = true;
}
var check_opt = document.getElementsByClassName('checkit');
console.log(check_opt);
var btn = document.getElementById('sendNewSms');
function detect() {
btn.disabled = true;
for (var index = 0; index < check_opt.length; ++index) {
console.log(index);
if (check_opt[index].checked == true) {
console.log(btn);
btn.disabled = false;
}
}
}
window.onload = function() {
for (var i = 0; i < check_opt.length; i++) {
check_opt[i].addEventListener('click', detect)
}
// when unchecked or checked, run the function
}
<input type="checkbox" id="check1" class="checkit" />Option1
<br>
<input type="checkbox" id="check2" class="checkit" />Option2
<br>
<input type="checkbox" id="check3" class="checkit" />Option3
<br>
<input type="submit" name="sendNewSms" class="inputButton" disabled="true" id="sendNewSms" value=" Send " />
I want alert if check-box is not checked (- this is working )
and
Alert if ALL check-box is not checked ( need help in this )
CheckBox :
<input type="checkbox" value="1" id="data" name="data[]">
<input type="checkbox" value="2" id="data" name="data[]">
<input type="checkbox" value="3" id="data" name="data[]">
Button :
<input name=\"submitclose\" type=\"submit\" value=\"Close\" id=\"submitclose\">
Below is my Jquery :
echo "<script>
jQuery(function($) {
$(\"input[id='submitclose']\").click(function() {
var count_checked = $(\"[id='data']:checked\").length;
if (count_checked == 0) {
alert(\"Please select a Packet(s) to Close.\");
return false;
} else{
return confirm(\"Are you sure you want to Close these Packet?\");
}
});
});
</script>";
Try,
HTML:
<input type="checkbox" value="1" id="data1" name="data[]">
<input type="checkbox" value="2" id="data2" name="data[]">
<input type="checkbox" value="3" id="data3" name="data[]">
JS:
var allCheckBox = $("[id^='data']")
var count_checked = allCheckBox.filter(":checked").length;
if (count_checked == 0) {
alert("All check boxes are not checked");
} else if(count_checked != allCheckBox.length) {
alert("some of the check boxs are not checked");
} else{
return confirm("Are you sure you want to Close these Packet?");
}
$(\"input[id='submitclose']\").click(function(){
var count = 0;
$('input#data').each(function(){
if ($(this).attr('checked') == true){
count++ //if a checkbox is checked the variable count will be greater then 0.
}
})
if (count == 0){ //nothing is checked.
alert("Please check at least one of the checkboxes");
}else{ //something is checked.
//code to execute.
}
})
I'm using http://www.somacon.com/p143.php javascript for radio buttons to change the submit onclick location.href depending on which radio button is selected. But I think I may have an issue with my syntax as the button isn't working properly (I don't think it is pulling the value from the radio buttons properly). Thanks in advanced!
Here is the code:
<head>
<script type="text/javascript">
<!--
// return the value of the radio button that is checked
// return an empty string if none are checked, or
// there are no radio buttons
function getCheckedValue(radioObj) {
if(!radioObj)
return "";
var radioLength = radioObj.length;
if(radioLength == undefined)
if(radioObj.checked)
return radioObj.value;
else
return "";
for(var i = 0; i < radioLength; i++) {
if(radioObj[i].checked) {
return radioObj[i].value;
}
}
return "";
}
// set the radio button with the given value as being checked
// do nothing if there are no radio buttons
// if the given value does not exist, all the radio buttons
// are reset to unchecked
function setCheckedValue(radioObj, newValue) {
if(!radioObj)
return;
var radioLength = radioObj.length;
if(radioLength == undefined) {
radioObj.checked = (radioObj.value == newValue.toString());
return;
}
for(var i = 0; i < radioLength; i++) {
radioObj[i].checked = false;
if(radioObj[i].value == newValue.toString()) {
radioObj[i].checked = true;
}
}
}
//-->
</script>
</head>
<body>
<form name="radioExampleForm" method="get" action="" onsubmit="return false;">
<p><label for="number0"><input type="radio" value="http://www.google.com" name="number" id="number0"> Zero</label>
<label for="number1"><input type="radio" value="http://www.ebay.com" name="number" id="number1"> One</label>
<label for="number2"><input type="radio" value="http://www.gamestop.com" name="number" id="number2"> Two</label>
<label for="number3"><input type="radio" value="http://www.amazon.com" name="number" id="number3"> Three</label>
<label for="number4"><input type="radio" value="http://www.usatoday.com" name="number" id="number4"> Four</label>
<p>
<input type="button" onclick="location.href='+getCheckedValue(document.forms['radioExampleForm'].elements['number']);" value="Show Checked Value">
ORIGNAL SUBMIT CODE THAT MADE AN ALERT BOX RATHER THAN location.href = <input type="button" onclick="alert('Checked value is: '+getCheckedValue(document.forms['radioExampleForm'].elements['number']));" value="Show Checked Value">
</form>
</body>
It's just a syntax error.
Change it to:
onclick="window.location.href = (getCheckedValue(document.forms['radioExampleForm'].elements['number']));"