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Fancy sliding form with more validation

I am using this fancy sliding box and having some problem with validation.It has default validation for checking where a field is empty or not but i want to add some more validation like two specific fields are equal or not or the length of a specific field is within the desired length or not.I have edited the code but facing a problem that is when a previous navigation field has any error it is also adding error class for the next navigation though it was filled correctly.
Here is my code(Be noted i don't know jquery well) :
function validateStep(step) {
if(step == fieldsetCount) return;
var error = 1;
var hasError = false;
$('#formElem').children(':nthchild('+parseInt(step)+')')
.find(':input:not(button)')
.each(function() {
var $this = $(this);
var valueLength = jQuery.trim($this.val()).length;
//i don't know how to generate a specific field value using this keyword
var pas=$('#myPassword').val().length;
var pas1=$('#myPassword').val();
var pas2=$('#VerifyPassword').val();
var pin1=$('#mPin').val();
var pin2=$('#vVPin').val();
var pas_ok=1;
if(pas1 != pas2 || pin1 ! =pin2 || pas < 5 ) {
pas_ok=0;
}
if(valueLength == '' || pas_ok==0) {
hasError = true;
$this.css('background-color','#FFEDEF');
} else {
$this.css('background-color','#FFFFFF');
}
});
var $link = $('#navigation li:nth-child(' + parseInt(step) + ') a');
$link.parent().find('.error,.checked').remove();
var valclass = 'checked';
if(hasError) {
error = -1;
valclass = 'error';
}
$('<span class="'+valclass+'"></span>').insertAfter($link);
return error;
}
Here is my form:
<div id="steps">
<form id="formElem" name="formElem" action="" method="post" >
<fieldset class="step">
<legend>Account</legend>
<p>
<label for="password">Password</label>
<input type="password" name="myPassword" id="myPassword" value="<?=$myPassword;?>" AUTOCOMPLETE=OFF />
</p>
<p>
<label for="password"> Verify Password</label>
<input type="password" name="VerifyPassword" id="VerifyPassword" value="<?=$VerifyPassword;?>" />
</p>
<p>
<label for="password"> Your Personal Pin </label>
<input type="pin" name="mPin" id="mPin" value="<?=$mPin;?>" />
</p>
<p>
<label for="password"> Verify Personal Pin </label>
<input type="pin" name="vVPin" id="vVPin" value="<?=$vVPin;?>" />
</p>
</fieldset>
</form>
</div>

What you are doing is checking all input fields for every each cycle again completeley. .each() gives you one input at a time. What you want to do is differentiate them via the input's respective id and then run the checks. The following code checks the length of all 4 input fields and marks them red if their length is zero and in case of the two verify input fields it also checks whether they are the same as their original input fields. The code is untested but you should get the idea.
$('#formElem').children(':nthchild('+parseInt(step)+')')
.find(':input:not(button)')
.each(function() {
var $this = $(this);
var value = $this.val();
var valueLength = jQuery.trim(value).length;
var pas_ok = 1;
var id = $this.attr("id");
if (id === 'VerifyPassword') {
var password = $('#myPassword').val();
var vPassword = value;
if (password !== vPassword)
pas_ok = 0;
} else if (id === 'vVPin') {
var pin = $('#mPin').val()
var vPin = value;
if (pin !== vPin || pin.length < 5)
pas_ok = 0;
}
if(valueLength === 0 || pas_ok === 0) {
hasError = true;
$this.css('background-color','#FFEDEF');
} else {
$this.css('background-color','#FFFFFF');
}
});
On a side note: Always use === instead of == if you compare something in javascript.

How can I show a dollar sign before the amount value when the checkbox is checked?

When the checkbox is not checked it will show $0.00.
When I check the checkbox, it will show 1.00. I want it to show $1.00. How can I do that?
Demo on JS Fiddle
This is the code:
<form id="form1" method="post">
<input type="text" id="totalcost" value="$0.00">
<input type="checkbox" value="aa_1">
<input type="checkbox" value="aa_2">
<input type="checkbox" value="aa_3">
</form>
<script type="text/javascript">
var clickHandlers = (function () {
var form1 = document.getElementById("form1"),
totalcost = document.getElementById("totalcost"),
// if this is always the last input in the form, we could avoid hitting document again with
// totalcost = form1[form1.length - 1];
sum = 0;
form1.onclick = function (e) {
e = e || window.event;
var thisInput = e.target || e.srcElement;
if (thisInput.nodeName.toLowerCase() === 'input') {
if (thisInput.checked) {
var val = thisInput.value, // "bgh_9.99"
split_array = val.split("_"), // ["bgh", "9.99"]
pay_out_value = split_array[1]; // "9.99"
sum += parseFloat(pay_out_value); // 9.99
} else {
if (thisInput.type.toLowerCase() === 'checkbox') {
var val = thisInput.value, // "bgh_9.99"
split_array = val.split("_"), // ["bgh", "9.99"]
pay_out_value = split_array[1]; // "9.99"
sum -= parseFloat(pay_out_value); // 9.99
}
}
totalcost.value = (sum > 0) ? sum.toFixed(2) : "$0.00";
}
}
return null;
}());
</script>

Simply change this line:
totalcost.value = (sum > 0) ? sum.toFixed(2) : "$0.00";
to
totalcost.value = (sum > 0) ? "$" + sum.toFixed(2) : "$0.00";
^
This will add $ before your price !
FIDDLE

Just append the $ to the value:
totalcost.value = (sum > 0) ? '$' + sum.toFixed(2) : "$0.00";
Fiddle

change form action value based on hidden field values

When a user selects either 2 or 3 checkboxes, and submits the form, I am trying to change the value of the form action attribute based on the values from 2 or 3 hidden fields.
The hidden fields with a default value of 0 are given the value of 1 when a checkbox is checked.
However it does not work and I'm unsure where to go from here.
My Form:
<form id="f" name="f" method="post" onsubmit="return checkform()" action="scripts/false.php">
RSA:<input type="hidden" id="RSAsel" name="RSAsel" value="0" />
RSG:<input type="hidden" id="RSGsel" name="RSGsel" value="0" />
RSF:<input type="hidden" id="RSFsel" name="RSFsel" value="0" />
<input name="submit" type="button" class="bodytxt" id="button" onclick="javascript:doSubmit();" value="Enrol in these courses">
</form>
<script>
function doSubmit() {
var RSAsel = parseInt(document.getElementById("RSAsel").value);
var RSGsel = parseInt(document.getElementById("RSGsel").value);
var RSFsel = parseInt(document.getElementById("RSFsel").value);
var target1 = 'scripts/process-combined-3.php';
var target2 = 'scripts/process-combined-rsa-rsg.php';
var target3 = 'scripts/process-combined-rsa-rsf.php';
var target4 = 'scripts/process-combined-rsg-rsf.php';
var theForm=document.getElementById('f');
if (RSAsel === 1 && RSGsel === 1 && RSFsel === 1) {
theForm.action = target1;
theForm.submit();
return true;
}
else if (RSAsel === 1 && RSGsel === 1) {
theForm.action = target2;
theForm.submit();
return true;
}
else if (RSAsel === 1 && RSFsel === 1) {
theForm.action = target3;
theForm.submit();
return true;
}
else if (RSGsel === 1 && RSFsel === 1) {
theForm.action = target4;
theForm.submit();
return true;
}
}
</script>

you need to get value of hidden field before trying to use it, like:
function doSubmit() {
var RSAsel = document.getElementById("RSAsel").value;
var RSGsel = document.getElementById("RSGsel").value;
var RSFsel = document.getElementById("RSFsel").value;
//rest of your code
}
and there's no header( "Location: $errorurl" ); in javascript, you are confusing it with PHP

Form Validation with Javascript using window.onload

Hi there I am really stuck on this and since I am a javscript beginner this boggles my mind.
Is there someone who knows how to write the following javascript form validation?
I am sure that it is very simple, but I can not figure this one out to save my life.
Thank you for you sharing your knowledge.
I need to write WITHOUT jquery the following form validation. Whenever an error is encountered, prevent the form from being submitted. I need to use the window.onload function to assign a validation callback function. There are 4 inputs which get validated by the javascript code. Also the javascript needs to be in its own file.
Validation Rules are as follow:
INPUT: Username; Required (yes); Validation (Must be 5-10 characters long).
INPUT: Email; Required (yes); Validation (Must have an # sign, must have a period).
INPUT: Street name; Required (no); Validation (Must start with a number).
INPUT: Year of birth; Required (yes); Validation (must be numeric).
My code looks as follow:
HTML:
<!DOCTYPE html>
<html>
<head>
<script defer="defer" type="text/javascript" src="form.js"></script>
</head>
<body>
<form action="fake.php">
Username*: <input type="text" class="required" name="u"/><br/>
Email*: <input type="text" class="required" name="p"/><br/>
Street address: <input type="text" class="numeric" name="s"/><br/>
Year of birth*: <input type="text" class="required numeric" name="b"/><br/>
<input type="submit"/><br/>
</form>
</body>
</html>
JS
document.forms[0].elements[0].focus();
document.forms[0].onsubmit=function(){
for(var i = 0; i < document.forms[0].elements.length; i++){
var el = document.forms[0].elements[i];
if((el.className.indexOf("required") != -1) &&
(el.value == "")){
alert("missing required field");
el.focus();
el.style.backgroundColor="yellow";
return false;
}
if((el.className.indexOf("numeric") != -1) &&
(isNaN(el.value))){
alert(el.value + " is not a number");
el.focus();
el.style.backgroundColor="pink";
return false;
}
}
}

without changing much of your code ... updated your code for other validation like length (needs a class verifylength to validate length) and so on....
try this
HTML
<form action="fake.php">Username*:
<input type="text" class="required verifylength" name="u" />
<br/>Email*:
<input type="text" class="required email" name="p" />
<br/>Street address:
<input type="text" class="numeric" name="s" />
<br/>Year of birth*:
<input type="text" class="required numeric" name="b" />
<br/>
<input type="submit" />
<br/>
</form>
JAVASCRIPT
document.forms[0].elements[0].focus();
document.forms[0].onsubmit = function () {
for (var i = 0; i < document.forms[0].elements.length; i++) {
var el = document.forms[0].elements[i];
if ((el.className.indexOf("required") != -1) && (el.value == "")) {
alert("missing required field");
el.focus();
el.style.backgroundColor = "yellow";
return false;
} else {
if (el.className.indexOf("verifylength") != -1) {
if (el.value.length < 5 || el.value.length > 10) {
alert("'" + el.value + "' must be 5-10 charater long");
el.focus();
el.style.backgroundColor = "pink";
return false;
}
}
}
if (el.className.indexOf("email") != -1) {
var regEx = /^([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*#([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,9})$/;
var emailTest = regEx.test(el.value);
if (!emailTest) {
alert("email not valid");
el.focus();
el.style.backgroundColor = "yellow";
return false;
}
};
if ((el.className.indexOf("numeric") != -1) && (isNaN(el.value))) {
alert(el.value + " is not a number");
el.focus();
el.style.backgroundColor = "pink";
return false;
}
}
}
working fiddle

something alongs the lines of...
//username 5-10 chars
var uVal = document.getElementsByTagName("u").value;
if (uVal.length < 5 || uVal.length > 10) return false;
//email needs # and .
var eVal = document.getElementsByTagName("p").value;
if !(eVal.match('/.*#.*\./g')) return false;
//street starts w/ num
var sVal = document.getElementsByTagName("s").value;
if !(sVal.match('/^[0-9]/g')) return false;
i think the regex is off + untested :)

Here is your javascript validation object in work. Hope you can make some modification according to your need.
Style
<style>
.valid {border: #0C0 solid 1px;}
.invalid {border: #F00 solid 1px;}
</style>
HTML Form
<div>
<form id="ourForm">
<label>First Name</label><input type="text" name="firstname" id="firstname" class="" /><br />
<label>Last Name</label><input type="text" name="lastname" id="lastname" class="" /><br />
<label>Username</label><input type="text" name="username" id="username" class="" /><br />
<label>Email</label><input type="text" name="email" id="email" class="" /><br />
<input type="submit" value="submit" class="" />
</form>
</div>
Call script before closing tag
<script src="form_validation_object.js"></script>
form_validation_object.js
/*
to: dom object
type: type of event
fn: function to run when the event is called
*/
function addEvent(to, type, fn) {
if (document.addEventListener) { // FF/Chrome etc and Latest version of IE9+
to.addEventListener(type, fn, false);
} else if (document.attachEvent) { //Old versions of IE. The attachEvent method has been deprecated and samples have been removed.
to.attachEvent('on' + type, fn);
} else { // IE5
to['on' + type] = fn;
}
}
// Your window load event call
addEvent(window, 'load', function() {
/* form validation object */
var Form = {
validClass: 'valid',
inValidClass: 'invalid',
fname: {
minLength: 1,
maxLength: 8,
fieldName: 'First Name'
},
lname: {
minLength: 1,
maxLength: 12,
fieldName: 'Last Name'
},
username: {
minLength: 5,
maxLength: 10,
fieldName: 'Username'
},
validateLength: function(formElm, type) {
//console.log('string = ' + formElm.value);
//console.log('string length = ' + formElm.value.length);
//console.log('max length=' + type.maxLength);
//console.log(Form.validClass);
if (formElm.value.length > type.maxLength || formElm.value.length < type.minLength) {
//console.log('invalid');
//alert(formElm.className);
if (formElm.className.indexOf(Form.inValidClass) == -1) {
if (formElm.className.indexOf(Form.validClass) != -1) {
formElm.className = formElm.className.replace(Form.validClass, Form.inValidClass);
} else {
formElm.className = Form.inValidClass;
}
}
//alert(formElm.className);
return false;
} else {
//console.log('valid');
//alert(formElm.className.indexOf(Form.validClass));
if (formElm.className.indexOf("\\b" + Form.validClass + "\\b") == -1) { // regex boundary to match whole word only http://www.regular-expressions.info/wordboundaries.html
//formElm.className += ' ' + Form.validClass;
//alert(formElm.className);
if (formElm.className.indexOf(Form.inValidClass) != -1)
formElm.className = formElm.className.replace(Form.inValidClass, Form.validClass);
else
formElm.className = Form.validClass;
}
return true;
}
},
validateEmail: function(formElm) {
var regEx = /^([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*#([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,9})$/;
var emailTest = regEx.test(formElm.value);
if (emailTest) {
if (formElm.className.indexOf(Form.validClass) == -1) {
formElm.className = Form.validClass;
}
return true;
} else {
formElm.className = Form.inValidClass;
return false;
}
},
getSubmit: function(formID) {
var inputs = document.getElementById(formID).getElementsByTagName('input');
for (var i = 0; i < inputs.length; i++) {
if (inputs[i].type == 'submit') {
return inputs[i];
}
}
return false;
}
}
/* call validation object */
var ourForm = document.getElementById('ourForm');
var submit_button = Form.getSubmit('ourForm');
submit_button.disabled = 'disabled';
function checkForm() {
var inputs = ourForm.getElementsByTagName('input');
if (Form.validateLength(inputs[0], Form.fname)) {
if (Form.validateLength(inputs[1], Form.lname)) {
if (Form.validateLength(inputs[2], Form.username)) {
if (Form.validateEmail(inputs[3])) {
submit_button.disabled = false;
return true;
}
}
}
}
submit_button.disabled = 'disabled';
return false;
}
checkForm();
addEvent(ourForm, 'keyup', checkForm);
addEvent(ourForm, 'submit', checkForm);
});
Working example at JSBin
http://jsbin.com/ezujog/1

checked checkbox to enable text field with validation

I have a Paypal form which has been built using some borrowed code. The main purpose of the form is to add some optional extras to a standard product and send that data to the paypal checkout. It seems to be working quite well, but...
I have a text field that I want to be required when the related checkbox is checked and for it to be disabled, and therefore not required when its unchecked.
Crucially I need the data in the text field to be sent to the paypal shopping basket.
I have validation on another text field which will always be required, that works and sends the data to Paypal, but I'm a javascript newbie and can't get to grips with the second field.
This is the borrowed javascript
function Dollar (val) { // force to valid dollar amount
var str,pos,rnd=0;
if (val < .995) rnd = 1; // for old Netscape browsers
str = escape (val*1.0 + 0.005001 + rnd); // float, round, escape
pos = str.indexOf (".");
if (pos > 0) str = str.substring (rnd, pos + 3);
return str;
}
var amt,des,obj,val,op1a,op1b,op2a,op2b,itmn;
function ChkTok (obj1) {
var j,tok,ary=new Array (); // where we parse
ary = val.split (" "); // break apart
for (j=0; j<ary.length; j++) { // look at all items
// first we do single character tokens...
if (ary[j].length < 2) continue;
tok = ary[j].substring (0,1); // first character
val = ary[j].substring (1); // get data
if (tok == "#") amt = val * 1.0;
if (tok == "+") amt = amt + val*1.0;
if (tok == "%") amt = amt + (amt * val/100.0);
if (tok == "#") { // record item number
if (obj1.item_number) obj1.item_number.value = val;
ary[j] = ""; // zap this array element
}
// Now we do 3-character tokens...
if (ary[j].length < 4) continue;
tok = ary[j].substring (0,3); // first 3 chars
val = ary[j].substring (3); // get data
if (tok == "s1=") { // value for shipping
if (obj1.shipping) obj1.shipping.value = val;
ary[j] = ""; // clear it out
}
if (tok == "s2=") { // value for shipping2
if (obj1.shipping2) obj1.shipping2.value = val;
ary[j] = ""; // clear it out
}
}
val = ary.join (" "); // rebuild val with what's left
}
function StorVal () {
var tag;
tag = obj.name.substring (obj.name.length-2); // get flag
if (tag == "1a") op1a = op1a + " " + val;
else if (tag == "1b") op1b = op1b + " " + val;
else if (tag == "2a") op2a = op2a + " " + val;
else if (tag == "2b") op2b = op2b + " " + val;
else if (tag == "3i") itmn = itmn + " " + val;
else if (des.length == 0) des = val;
else des = des + ", " + val;
}
function ReadForm (obj1, tst) { // Read the user form
var i,j,pos;
amt=0;des="";op1a="";op1b="";op2a="";op2b="";itmn="";
if (obj1.baseamt) amt = obj1.baseamt.value*1.0; // base amount
if (obj1.basedes) des = obj1.basedes.value; // base description
if (obj1.baseon0) op1a = obj1.baseon0.value; // base options
if (obj1.baseos0) op1b = obj1.baseos0.value;
if (obj1.baseon1) op2a = obj1.baseon1.value;
if (obj1.baseos1) op2b = obj1.baseos1.value;
if (obj1.baseitn) itmn = obj1.baseitn.value;
for (i=0; i<obj1.length; i++) { // run entire form
obj = obj1.elements[i]; // a form element
if (obj.type == "select-one") { // just selects
if (obj.name == "quantity" ||
obj.name == "amount") continue;
pos = obj.selectedIndex; // which option selected
val = obj.options[pos].value; // selected value
ChkTok (obj1); // check for any specials
if (obj.name == "on0" || // let this go where it wants
obj.name == "os0" ||
obj.name == "on1" ||
obj.name == "os1") continue;
StorVal ();
} else
if (obj.type == "checkbox" || // just get checkboxex
obj.type == "radio") { // and radios
if (obj.checked) {
val = obj.value; // the value of the selection
ChkTok (obj1);
StorVal ();
}
} else
if (obj.type == "select-multiple") { //one or more
for (j=0; j<obj.options.length; j++) { // run all options
if (obj.options[j].selected) {
val = obj.options[j].value; // selected value (default)
ChkTok (obj1);
StorVal ();
}
}
} else
if (obj.name == "size") {
val = obj.value; // get the data
if (val == "" && tst) { // force an entry
alert ("Enter data for " + obj.name);
return false;
}
StorVal ();
} else
if (obj.name == "stamp") {
val = obj.value; // get the data
//if (val == "" && tst) { // force an entry
// alert ("Enter data for " + obj.name);
// return false;
//}
StorVal ();
}
}
// Now summarize stuff we just processed, above
if (op1a.length > 0) obj1.on0.value = op1a;
if (op1b.length > 0) obj1.os0.value = op1b;
if (op2a.length > 0) obj1.on1.value = op2a;
if (op2b.length > 0) obj1.os1.value = op2b;
if (itmn.length > 0) obj1.item_number.value = itmn;
obj1.item_name.value = des;
obj1.amount.value = Dollar (amt);
if (obj1.tot) obj1.tot.value = "£" + Dollar (amt);
}
and this is the html
<form action="https://www.paypal.com/cgi-bin/webscr" name="weboptions" method="post" onsubmit="this.target='_blank'; return ReadForm(this, true);">
<input type="hidden" name="cmd" value="_cart" />
<input type="hidden" name="add" value="1" />
<input type="hidden" name="business" value="craig#craigomatic.co.uk" />
<input type="hidden" name="shipping" value="0.00">
<input type="hidden" name="no_shipping" value="1">
<input type="hidden" name="return" value="">
<input type="hidden" name="item_name" value />
<input type="hidden" name="amount" value />
<input type="hidden" name="currency_code" value="GBP" />
<input type="hidden" name="lc" value="US" />
<input type="hidden" name="bn" value="PP-ShopCartBF">
<input type="hidden" name="basedes" value="Collar">
<h4>Collar details...</h4>
<div>
<p>Matching lamb nappa lining <br />
with antique brass finished hardware</p>
<div>
<p>Pick a colour:</p>
<p>Chose a width:</p>
<p>Tell us the Size:<br />
in cms (?)</p>
</div>
<div>
<p>
<select name="colour" onclick="ReadForm (this.form, false);" size="1">
<option value="Black +55.00">Black</option>
<option value="Brown +55.00">Brown</option>
<option value="Tan +55.00">Tan</option>
</select>
</p>
<p>
<select name="width" onclick="ReadForm (this.form, false);" size="1">
<option value="1 and quarter inch">1¼ inch</option>
<option value="1 and half inch">1½ inch</option>
</select>
</p>
<p><input name="size" type="text" class="size"></p>
<p></p>
</div>
</div>
<h4>Optional extras...</h4>
<div>
<p>
<label>
<input type ="checkbox" onclick="ReadForm (this.form, false);"
value ="Double D +1.50"
name ="DoubleD">
Double D Me (£1.50)
</label>
</p>
<p>
<label>
<input type ="checkbox" onclick="ReadForm (this.form, false);"
value ="Max Me +1.50"
name ="MaxMe">
Max Me! (£1.50)
</label>
</p>
<p>
<label>
<input type ="checkbox" onclick="ReadForm (this.form, false);"
value ="Match Me +1.50"
name ="MatchMe">
Match Me (£1.50)
</label>
</p>
<p>
<label>
<input type ="checkbox" onclick="ReadForm (this.form, false);"
value ="Stamp Me +1.50"
name ="StampMe">
Stamp Me (£1.50)</label>
</p>
<p><input name="stamp" type="text" class="lettering" maxlength="12"></p>
</div>
<p>Total:<input class="nbor" type="text" name="tot" size="7" value="£55.00" /> <input class="buy" type="submit" value="Buy Me" name="B1"></p>
</form>
If your wondering you can find the page in question here http://booleather.co.uk/option1/bronze-bronco.php
Any help would be much appreciated.

Give this code a try:
if (val == "" && obj1.elements["StampMe"].checked) {
// if the value of the stamp text field is empty and the user has checked the StampMe box
alert ("Enter data for " + obj.name);
return false;
}
(instead of)
//if (val == "" && tst) { // force an entry
// alert ("Enter data for " + obj.name);
// return false;
//}