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JavaScript - Customize Javascript Input Validation
i have been trying to edit the below code so i can validate text fields and numeric fields but whenever i try it bypasses all validation and executed the php script.
Can someone please let me know what i'm doing wrong fld = form.elements['name']; if ( !isValidText( fld.value ) ) { msg = 'The name is not valid.'; addValidationField(fld); addValidationMessage(msg); } function isValidText(val) { var re = /^\s{1,}$/g; if ((mytext.value.length==0) || (mytext.value==null) || ((mytext.value.search(re)) > -1)) { return true; }else { return false; } } Code:
fld = form.elements['email'];
if ( !isValidEmail( fld.value ) ) {
msg = 'The email address is not valid.';
addValidationField(fld);
addValidationMessage(msg);
}
the above code calls: Code: function isValidEmail(val) {
var re = /^[\w\+\'\.-]+@[\w\'\.-]+\.[a-zA-Z]{2,}$/;
// /^[a-z0-9]([a-z0-9_\-\.]*)@([a-z0-9_\-\.]*)(\.[a-z]{2,4}(\.[a-z]{2}){0,2})$/i;
if (!re.test(val)) {
return false;
}
return true;
}
the entire script is as follows Code: /* order form code from dyn-web.com */
// onchange of qty field entry
function getProductTotal(field) {
clearErrorInfo();
var form = field.form;
if (field.value == "") field.value = 0;
if ( !isPosInt(field.value) ) {
var msg = 'Please enter a positive integer for quantity.';
addValidationMessage(msg);
addValidationField(field)
displayErrorInfo( form );
return;
} else {
var product = field.name.slice(0, field.name.lastIndexOf("_") );
var price = form.elements[product + "_price"].value;
var amt = field.value * price;
form.elements[product + "_tot"].value = formatDecimal(amt);
doTotals(form);
}
}
function doTotals(form) {
var total = 0;
for (var i=0; PRODUCT_ABBRS[i]; i++) {
var cur_field = form.elements[ PRODUCT_ABBRS[i] + "_qty" ];
if ( !isPosInt(cur_field.value) ) {
var msg = 'Please enter a positive integer for quantity.';
addValidationMessage(msg);
addValidationField(cur_field)
displayErrorInfo( form );
return;
}
total += parseFloat(cur_field.value) * parseFloat( form.elements[ PRODUCT_ABBRS[i] + "_price" ].value );
}
form.elements['total'].value = formatDecimal(total);
}
function finalCheck(form) {
clearErrorInfo();
var msg = '', fld;
// final check of quantity entries' validity
for (var i=0; PRODUCT_ABBRS[i]; i++) {
var cur_field = form.elements[ PRODUCT_ABBRS[i] + "_qty" ];
if ( !isPosInt(cur_field.value) ) {
msg = 'Please enter a positive integer for quantity.';
addValidationField(cur_field)
}
}
if (msg) { // one msg for qty flds
addValidationMessage(msg);
}
/////////////////////////////////////////////////////////////////////
// add check on email and any other required fields here
fld = form.elements['email'];
if ( !isValidEmail( fld.value ) ) {
msg = 'The email address is not valid.';
addValidationField(fld);
addValidationMessage(msg);
}
//
/////////////////////////////////////////////////////////////////////
if (msg) { // if any error msg's, display and cancel submission
displayErrorInfo( form );
return false;
}
// check if a quantity entered
if (form.elements['total'].value == 0) {
msg = "You haven't ordered anything.";
addValidationMessage(msg);
displayErrorInfo( form );
return false;
}
return true;
}
function isValidEmail(val) {
var re = /^[\w\+\'\.-]+@[\w\'\.-]+\.[a-zA-Z]{2,}$/;
// /^[a-z0-9]([a-z0-9_\-\.]*)@([a-z0-9_\-\.]*)(\.[a-z]{2,4}(\.[a-z]{2}){0,2})$/i;
if (!re.test(val)) {
return false;
}
return true;
}
// onclick
function checkValue(field) {
if (field.value == 0) field.value = "";
}
// onblur
function reCheckValue(field) {
if (field.value == "") field.value = 0;
}
function isPosInt(val) {
var re = /^\d+$/
if ( !re.test(val) ) {
return false;
}
return true;
}
// format val to n number of decimal places
// modified version of Danny Goodman's (JS Bible)
function formatDecimal(val, n) {
n = n || 2;
var str = "" + Math.round ( parseFloat(val) * Math.pow(10, n) );
while (str.length <= n) str = "0" + str;
var pt = str.length - n;
return str.slice(0,pt) + "." + str.slice(pt);
}
Similar TutorialsAnyone know how do I use javascript to limit the numeric amount enetered in a text box less than 1000?
As you can see the above warning will be only shown when there is an error while inserting the data into the login form. Now I have tried to achieve it by: Hiding the div say "warning". Use a javascript while submitting the form to check for input validation. If found any error, the hidden div "warning" will show above the form as shown as in the image. I have tried it in Edit fiddle - JSFiddle Ples help im suppose to validate an ID text field so that is it mandatory, and must be 6 numeric digits. The code i have for the ID field is: Code: <form id="ThisForm"> <label for="emId"> Employee ID: </label></td> <input type="text" name="empID" id="emId" ;"/> </form> I'm beginner to javascript and really has no idea what to do, can someone help pls. I'm trying to figure out how to add a length paramater to this function. Not quite sure how to do it. here's what I tried: Code:
var phone = document.getElementById('phone');
if(isNumericdashes(phone, "Please enter a valid phone number")){
return true;
}
function isNumericdashes(elem, helperMsg){
var numericExpression = /^[0-9\(\)-]+$/;
if(elem.value.match(numericExpression) &&(elem.length > 9)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}
}
Hello all, I have in my application input type file for uploading files. How can i do javascript validation to check if filename has special characters in it?? Thanks I'm having trouble figuring out this code. I have a isInitialsTextValid function that checks to see if the user enters their initials in the correct format. Then I have a function checkInitials. In the checkInitials function I am supposed (1)to declare a variable to be used for the boolean value returned by the isInitialsTextValid function.(2)call the isInitialsTextValid function.(3)If the value returned is false, place focus back on initials textbox.(4)If the value return is true call the submit function. I'm not sure what I am doing wrong, but I get a checkInitials is no defined error from firefox and it is pointing to my xhtml file. Here is the relevant code. XHTML FILE Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Form Example</title>
<script type = "text/javascript" src= "Lab17.js"> </script>
</head>
<body onload="giveInitFocus();">
<form name = "form1" action = "">
<p>
<input type = "button" value = "Total Cost" onClick = "checkInitials();" />
<input type = "reset" value = "Reset Order Form" name = "reset" />
</p>
<hr />
<p>
Please Enter the Cashier's Initials.
</p>
<p>
<label> Cashier's Initials: <input type = "text" name = "initials" id = "initials" /></label>
</p>
<p>
JAVASCRIPT FILE Code: function isInitialsTextValid()
{
var init = document.form1.initials;
var position = init.value.search(/^[A-Z]{2,3}$/);
if(position !=0)
{
alert("Initials must be 2 or 3 capital letters" + "\n Please re-enter");
return false;
}
else
return true;
}
function checkInitials()
{
var returned;
isInitialsTextValid();
if(returned == false)
{
document.form1.initials.focus();
}
else if(returned == true)
{
handleSubmitClick();
}
}
Hi I have a problem with a form in my site he http://www.21centuryanswers.com/submit.php if no field is filled and you click submit, an alert will be shown, yet the next page will still load! How do I fix it? the code for the form is: <form action="privacy.php" method="post" onsubmit="return checkform(this);"> <fieldset> <center> E-mail: <input type="textfield" name="email" size="60" value="" /><br/></br> Question: <input type="textfield" name="question" size="70" value="" /><br/><br/> <input type="submit" value = "Submit"/> </center> </fieldset> </form> and here is the validation script: <script language="JavaScript" type="text/javascript"> <!-- function checkform ( form ) { // ** START ** if (form.email.value == "") { alert( "Please enter your email." ); form.author.focus(); return false ; } if (form.question.value == "") { alert( "Please enter the question." ); form.title.focus(); return false ; } // ** END ** return true ; } //--> </script> Please help! Hi, i need to make my alert box stand out a bit more i have looked everywhere but can't find anything! i was looking to do stuff like Bold, Italics, Underline, Fonts, Sizes, Borders, Backgrounds maybe something that flashed! i'm not asking you to do it for me just tell me how and were to put the different codes! and ASAP please as it is in for Thursday!! :S thanks in advance :D Hi I need to make a vertical menu bar where the sub menu that flies out on the right always starts at the top rather than next to its parent. I used this script http://www.javascriptkit.com/script/...icalmenu.shtml at the moment lists look like this (bold is selected option) 1 2 1 3 2 4 3 1 what i want is this to happen 1 1 1 2 2 3 3 4 Alternatively, does anyone know how to get the vertical spry menubar from DW to work in Safari? To get an idea of what I want, see this working version (not working in Safari though) in Firefox http://www.photoshopcourselondon.com...0open%202.html thanks mikael How do I give my popup browser a background color, change the title, and center the image on the page? I'd also like to control where it should pop up. Here is the code: function popUpImage2() { var popupimage = document.getElementById("image2").src; newwindow=window.open(popupimage,"POPUP","height=400,width=400"); if (window.focus) newwindow.focus(); } Around the main image it says: <img id="image2" style="display:none;"/><p><img src="images/bob.jpg" name="mainimage" width="424" border="0" id="mainimage" onclick="popUpImage2()" /> I'm kind of desperate, please write ASAP... Thanks in advance Hi guys, just need help so when there is no input into card number, postcode, what are you after, delivery address an error message comes up. Also I need to make it so when someone puts numbers in the first and last name or letters in the postcode it will come up error. I have done this for first and lastname but when I copy my code and try and put it on the others then no javascript works. thanks for your help Code: <html>
<head>
<script type="text/javascript">
function validate()
{
var at=document.getElementById("email").value.indexOf("@");
var age=document.getElementById("age").value;
var fname=document.getElementById("fname").value;
var lname=document.getElementById("lname").value;
var ccn=document.getElementById("ccn").value;
submitOK="true";
if (fname.length<1)
{
alert("Please Enter a Valid First Name");
submitOK="false";
}
if (isNaN(age)||age<1||age>100)
{
alert("Age Must be between 1 and 100");
submitOK="false";
}
if (lname.length<1)
{
alert("Please Enter a Last Name");
submitOK="false";
}
if (isNaN(age)||age<1||age>100)
{
alert("Age Must be between 1 and 100");
submitOK="false";
}
if (at==-1)
{
alert("Not a Valid Email Address");
submitOK="false";
}
if (submitOK=="false")
{
return false;
if (ccn.length>16)
{
alert("Credit Card Number is False");
submitOK="false";
}
}
}
</script>
</head>
<body>
<form action="tryjs_submitpage.htm" onsubmit="return validate()">
Name : <input type="text" id="fname" size="20"><br />
Last Name : <input type="text" id="lname" size="20"><br />
Age: <input type="text" size="2" id="age" maxlength="2">
Email: <input type="text" id="email" size="20"><br />
<table><tr>
<td><p>Type of Card</p></td>
<td><form action="21">
<select name="cars">
<option value="season"> </option>
<option value="season">Mastercard</option>
<option value="season">Diners Club</option>
<option value="season">Visa</option>
</select></form></td></tr>
</table>
<table><tr>
<td><p>Expiry Date</p></td>
<td><form action="21">
<select name="cars">
<option value="season"> </option>
<option value="season">2010</option>
<option value="season">2011</option>
<option value="season">2012</option>
</select></form></td></tr>
</table>
Card Number : <input type="text" id="ccn" size="20"><br />
Postcode: <input type="text" size="2" id="postcode" maxlength="4">
Delivery Address: <input type="text" id="da" size="20"><br />
Suburb: <input type="text" id="suburb" size="10"><br />
<table><tr>
<td><p>What are you after</p></td>
<td><form action="21">
<select name="cars">
<option value="poker products"> </option>
<option value="poker chips">Poker Table</option>
<option value="poker table">Poker Chips</option>
<option value="poker table">Both</option>
</select></form></td></tr>
</table>
<input type="submit" value="Submit">
</form>
</body>
</html>
I have a validation issue. I need the input fields to highlight yellow if no text has been entered and when the form is submitted the error message displays to check the highlighted fields. I get the input boxes to highlight when there is no text but on submit the form goes to the next page without the error alert message. Any suggestions would be appreciated. My HTML page: Code: <?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<!--
Filename: works.htm
Supporting files:
-->
<!-- #BeginEditable "doctitle" -->
<title>Wizard Works Order Form</title>
<!-- #EndEditable -->
<link href="ww.css" rel="stylesheet" type="text/css" />
<script src="functions.js" type="text/javascript"></script>
<script src="valid.js" type="text/javascript"></script>
</head>
<body>
<form id="order" action="file:///F:/JavaScript/case4/done.htm" onsubmit="return validateForm()" method="post">
<div id="page">
<div id="head">
<img alt="Wizard Works" src="logo.jpg" />
</div>
<ul id="links">
<li><a href="#">Home</a></li>
<li><a href="#">Assortments</a></li>
<li><a href="#">Firecrackers</a></li>
<li><a href="#">Fontains</a></li>
<li><a href="#">Cones</a></li>
<li><a href="#">Rockets</a></li>
<li><a href="#">Sparklers</a></li>
<li><a href="#">Online Store</a></li>
<li><a href="#">Shopping Cart</a></li>
<li><a href="#">Your Account</a></li>
<li><a href="#">Safety</a></li>
<li><a href="#">Tech Support</a></li>
<li><a href="#">Customer Service</a></li>
<li><a href="#">About Us</a></li>
<li><a href="#">Contact Us</a></li>
</ul>
<div id="webform">
<fieldset id="purchase">
<legend>Order</legend>
<label id="produtLab" class="required" for="product">1) Product</label>
<select id="product">
<option value="">Select a Product</option>
<option value="3.5">Green/Purple Fountain: $3.50 ea.</option>
<option value="4.95">Silver Cone: $4.95 ea.</option>
<option value="6.95">Glitter Cone: $6.95 ea.</option>
<option value="9.95">Glittering Stars: $9.95 ea.</option>
<option value="19.95">Fountain Kit: $19.95 ea.</option>
<option value="29.95">Fountain Kit Deluxe: $29.95</option>
<option value="39.95">Giant Fountain: $39.95</option>
</select>
<br />
<label id="qtyLab" class="required" for="qty">2) Quantity</label>
<select id="qty">
<option value="">Select a Quantity</option>
<option value="1"> 1</option>
<option value="2"> 2</option>
<option value="3"> 3</option>
<option value="4"> 4</option>
<option value="5"> 5</option>
<option value="6"> 6</option>
<option value="7"> 7</option>
<option value="8"> 8</option>
<option value="9"> 9</option>
<option value="10">10</option>
</select>
<br />
<label id="shippingLab" class="required" for="shipping">2) Shipping</label>
<select id="shipping">
<option value="">Select a Shipping Option</option>
<option value="4.95">Standard ($4.95)</option>
<option value="8.95">Express ($8.95)</option>
<option value="12.95">Next Day ($12.95)</option>
</select>
<br />
<label id="totalLab" for="total">3) Total Calculated Cost</label>
<input id="total" readonly="readonly" size="20" type="text" />
</fieldset>
<fieldset id="contact">
<legend>Contact Information</legend>
<label id="fnameLab" class="required" for="fname">4) First Name</label>
<input id="fname" size="20" type="text" class="validate" onblur="changeColor(this)" />
<br />
<label id="lnameLab" class="required" for="lname">5) Last Name</label>
<input id="lname" size="20" type="text" onblur="changeColor(this)" />
<br />
<label id="addressLab" class="required" for="address">6) Address</label>
<textarea id="address" cols="20" rows="5"onblur="changeColor(this)" ></textarea>
<br />
<label id="phoneLab" class="required" for="phone">7) Phone (nnn) nnn - nnnn</label>
<input id="phone" size="20" type="text" onblur="changeColor(this)" />
</fieldset>
<fieldset id="credit">
<legend>Payment Information</legend>
<label for="ccard">8) Credit Card</label>
<select id="ccard">
<option value="ae">American Express</option>
<option value="dc">Diners Club</option>
<option value="disc">Discover</option>
<option value="mc">MasterCard</option>
<option value="visa">Visa</option>
</select>
<br />
<label id="cholderLab" class="required" for="cholder">9) Card Holder</label>
<input id="cholder" size="20" type="text"onblur="changeColor(this)" />
<br />
<label id="cnumLab" class="required" for="cnum">10) Card Number</label>
<input id="cnum" size="20" type="text"onblur="changeColor(this)" />
<br />
<label class="required">11) Expiration Date</label>
<select id="cmonth" name="cmonth">
<option>01</option><option>02</option><option>03</option>
<option>04</option><option>05</option><option>06</option>
<option>07</option><option>08</option><option>09</option>
<option>10</option><option>11</option><option>12</option>
</select>
/
<select id="cyear" name="cyear">
<option>2010</option><option>2011</option><option>2012</option>
<option>2013</option><option>2014</option><option>2015</option>
</select>
</fieldset>
<input id="sbutton" type="submit" value="Submit Order" onclick="returm validateForm();return false;"/>
</div>
</div>
</form>
</body>
</html>
My valid.js code: Code: /*
Functions List:
initForm()
Initiates the Web form for use by the customer
calcCost()
Calculates the cost of the customer order
validLengths()
Validates that empty values have been entered for required
fields
testLength(field)
Tests the length of the text string in the specified field
validPatterns()
Validates that the field values match their regular expressions
testPattern(field, reg)
Tests a text string against a specified regular expression
validCNum()
Tests that the specified credit card number passes the Luhn formula
validateForm()
Performs a validation test on all of the fields in the form
*/
window.onload = initForm;
var wform;
var productIndex = 1;
var qtyIndex = 1;
var shipIndex = 1;
function initForm() {
wform = document.forms[0];
wform.product.onchange = calcCost;
wform.qty.onchange = calcCost;
wform.shipping.onchange = calcCost;
wform.onsubmit = validateForm;
}
function calcCost() {
productIndex = wform.product.selectedIndex;
productCost = parseFloat(wform.product.options[productIndex].value);
qtyIndex = wform.qty.selectedIndex;
qtyVal = parseFloat(wform.qty.options[qtyIndex].value);
shipIndex = wform.shipping.selectedIndex;
shipVal = parseFloat(wform.shipping.options[shipIndex].value);
if (productIndex != 0 && qtyIndex != 0 && shipIndex != 0) {
wform.total.value = "$"+(productCost*qtyVal+shipVal).toFixed(2);
}
}
function validLengths() {
var isValid = true;
if (testLength(wform.total)== false) isValid = false;
if (testLength(wform.fname)== false) isValid = false;
if (testLength(wform.lname)== false) isValid=false;
if (testLength(wform.address)== false) isValid=false;
if (testLength(wform.phone)== false) isValid=false;
if (testLength(wform.cholder)== false) isValid=false;
if (testLength(wform.cnum)== false) isValid=false;
return isValid;
}
function testLength(field) {
var isValid = true;
if (field.value.length == 0) {
document.getElementById(field.id+"contact").style.bgcolor="yellow";
isValid = false;
} else {
document.getElementById(field.id+"contact").style.bgcolor="white";
}
return isValid;
}
function validPatterns() {
var isValid = true;
phonereg = /^\(?\d{3}[\)-]?\s?\d{3}[\s-]?\d{4}$/;
if (testPattern(wform.phone, phonereg) == false) isValid = false;
creditType = wform.ccard.selectedIndex;
switch (creditType) {
case 0: cregx = /^3[47]\d{13}$/; break;
case 1: cregx = /^30[0-5]\d{11}$|^3[68]\d{12}$/; break;
case 2: cregx = /^6011\d{12}$/; break;
case 3: cregx = /^5[1-5]\d{14}$/; break;
case 4: cregx = /^4(\d{12}|\d{15})$/; break;
}
if (testPattern(wform.cnum, cregx) == false) isValid = false;
return isValid;
}
function testPattern(field, reg) {
var isValid = true;
wsregx = /\s/g;
var fv =field.value.replace(wsregx,"");
if (reg.test(fv) == false) {
isValid = false;
document.getElementById(input.id+"fname").style.bgcolor="yellow";
} else {
document.getElementById(input.id+"fname").style.bgcolor="white";
}
return isValid;
}
function validCNum() {
var isValid = true;
wsregx = /\s/g;
var fv = wform.cnum.value.replace(wsregx,"");
if (luhn(fv)==false) {
isValid = false;
document.getElementById("cnum").style.bgcolor="yellow";
} else {
document.getElementById("cnum").style.bgcolor="white";
}
return isValid;
}
function changeColor(field) {
var fv = field.value;
if (fv.length==0) {
field.style.background="yellow";
} else {
field.style.background="white";
}
}
function validateForm() {
var vLengths = validLengths();
var vPatterns = validPatterns();
var vCNum = validCNum();
var vForm = vLengths && vPatterns && vCNum;
if (!vForm) {
alert("Check the highlighted items in the form for missing/invalid data");
return false;
} else {
return true;
}
}
for some reason this is not working can anyone tell me why? Code: <script language="JavaScript" type="text/javascript">
function swap(nam,im)
{
eval("document." + nam + ".src=" + im + ".src");
}
van_b = new Image; van_b.src = "images/bus_menu2/busmenub_Passvan01on.jpg";
van_a = new Image; van_a.src = "images/bus_menu2/busmenub_Passvan01off.jpg";
excoach_b = new Image; excoach_b.src = "images/bus_menu2/busmenuB_Excoach01on.jpg";
excoach_a = new Image; excoach_a.src = "images/bus_menu2/busmenuB_Excoach01off.jpg";
specialcoach_b = new Image; specialcoach_b.src = "images/bus_menu/busmenu_specialtycoach01on.jpg";
specialcoach_a = new Image; specialcoach_a.src = "images/bus_menu/busmenu_specialtycoach01off.jpg";
minicoach_b = new Image; minicoach_b.src = "images/bus_menu2/busmenuB_minicoach01on.jpg";
minicoach_a = new Image; minicoach_a.src = "images/bus_menu2/busmenuB_minicoach01off.jpg";
motorcoach_b = new Image; motorcoach_b.src = "images/bus_menu2/busmenub_motorcoach01on.jpg";
motorcoach_a = new Image; motorcoach_a.src = "images/bus_menu2/busmenub_motorcoach01off.jpg";
function checkForm()
{
frm = window.document.contactForm;
if (frm.pickupmonth.value =='')
{
alert('Please enter valid pickup Month');
frm.pickupmonth.focus();
return false;
}
if(frm.pickupday.value== "")
{
alert('Please enter pickup Day');
frm.pickupday.focus();
return false;
}
if(frm.pickupyear.value == "")
{
alert('Please enter pickup Year');
frm.pickupyear.focus();
return false;
}
if(frm.pickupaddress.value == "")
{
alert('Please enter pickup Address');
frm.pickupaddress.focus();
return false;
}
if (frm.pickupcity.value== "")
{
alert('Please enter pickup City');
frm.pickupcity.focus();
return false;
}
if (!validateInt(frm.pickupzip.value))
{
if(frm.pickupzip.value =="" )
alert('Please enter pickup Zip Code');
frm.pickupzip.value="";
frm.pickupzip.focus();
return false;
}
if(frm.pickuphour.value == "")
{
alert('Please enter pickup Hour');
frm.pickuphour.focus();
return false;
}
if(frm.pickupminute.value == "")
{
alert('Please enter pickup Minute');
frm.pickupminute.focus();
return false;
}
if(frm.pickupam.value == "")
{
alert('Please enter pickup AM or PM');
frm.pickupam.focus();
return false;
}
if(frm.dropoffaddress.value == "")
{
alert('Please enter dropoff Address');
frm.dropoffaddress.focus();
return false;
}
if(frm.dropoffcity.value == "")
{
alert('Please enter dropoff City');
frm.dropoffcity.focus();
return false;
}
if (!validateInt(frm.dropoffpzip.value))
{
if(frm.dropoffpzip.value =="" )
alert('Please enter a valid dropoff Zip Code');
frm.dropoffpzip.value="";
frm.dropoffpzip.focus();
return false;
}
if(frm.arrivalhour.value == "")
{
alert('Please enter arrival Hour');
contactForm.arrivalhour.focus();
return false;
}
if(frm.arrivalmin.value == "")
{
alert('Please enter arrival Minute');
frm.arrivalmin.focus();
return false;
}
if(frm.arrivalam.value == "")
{
alert('Please enter arrival AM or PM');
frm.arrivalam.focus();
return false;
}
if(frm.vehicle.value == "")
{
alert('Please enter Vehicle Type');
frm.vehicle.focus();
return false;
}
if(frm.passengers.value == "")
{
alert('Please enter Amount of Passengers');
frm.passengers.focus();
return false;
}
if(frm.guestname.value == "")
{
alert('Please enter Name');
frm.guestname.focus();
return false;
}
if (!validateInt(frm.guestphone.value))
{
if(frm.guestphone.value =="" )
alert('Please enter a valid Telephone number');
frm.guestphone.value="";
frm.cguestphone.focus();
return false;
}
if(!validateEmail(frm.guestemail.value)
{
alert('Please enter proper email address!');
frm.guestemail.focus();
return false;
}
function validateInt(val)
{
switch (isInteger(val))
{
case true:
return true;
break;
case false:
alert("Please enter numbers only!");
return false;
}
}
function isInteger (s)
{
var i;
if (isEmpty(s))
if (isInteger.arguments.length == 1) return 0;
else return (isInteger.arguments[1] == true);
for (i = 0; i < s.length; i++)
{
var c = s.charAt(i);
if (!isDigit(c)) return false;
}
return true;
}
function isEmpty(s)
{
return ((s == null) || (s.length == 0))
}
function isDigit (c)
{
return ((c >= "0") && (c <= "9"))
}
function validateEmail(email){
// This function is used to validate a given e-mail
// address for the proper syntax
if (email == ""){
return false;
}
badStuff = ";:/,' \"\\";
for (i=0; i<badStuff.length; i++){
badCheck = badStuff.charAt(i)
if (email.indexOf(badCheck,0) != -1){
return false;
}
}
posOfAtSign = email.indexOf("@",1)
if (posOfAtSign == -1){
return false;
}
if (email.indexOf("@",posOfAtSign+1) != -1){
return false;
}
posOfPeriod = email.indexOf(".", posOfAtSign)
if (posOfPeriod == -1){
return false;
}
if (posOfPeriod+2 > email.length){
return false;
}
return true
}
</script>
Hi. I am trying to do some sim[ple form validation using javascript. I have a simple html file Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Send Card</title> <script language="JavaScript" src="gen_validatorv31.js" type="text/javascript"></script> </head> <body> <form action="getName.php" onsubmit="return validate_form(this);"> Receiver (To): <input type="text" name="name"><br> Sender (From): <input type="text" name="sender"><br> Email: <input type="text" name="email"><br> <input type="submit" value="Submit"> </form> </body> </html> Which calls up my javascript and php file (The php file should only be used when the javascript has found no errors). Now I have a js file which does some validation Code: <script type="text/javascript">
function validate_required(field,alerttxt) {
with (field) {
if (value==null||value=="") {
alert(alerttxt);
return false;
}
else {
return true;
}
}
}
function validate_email(field,alerttxt) {
with (field) {
apos=value.indexOf("@")
dotpos=value.lastIndexOf(".")
if (apos<1||dotpos-apos<2) {
alert(alerttxt);
return false;
} else {
return true;
}
}
}
function validate_form(thisform) {
with (thisform) {
if (validate_required(name,"Please specify your name!")==false) {
name.focus();
return false;
}
if (validate_required(sender,"Please specify the receivers name!")==false) {
sender.focus();
return false;
}
if (validate_required(email,"Email must be filled out!")==false) {
email.focus();
return false;
}
if (validate_email(email,"Not a valid e-mail address!")==false) {
email.focus();
return false;
}
}
}
</script>
When I run it on my server, I get the form and enter nothing into it, I just click submit. However, it goes straight to the php file and brings up my flash movie, which it shouldnt do. When nothing is entered, the js file should return the error. I thought I had everything set up correctly, but obviously not. Can someone see where I am going wrong? cheers I am new to this forum.. and I am hoping to get help with this javascript validation for my form for my assignment. trying to validate multiple fields. I have never done javascript, so with my limited understanding from Google, I put together code snippets. Problems: 1. How can I get one message box when the user presses submit indicating all failed validation at one time 2. The expired credit card validation doesnt work 3. Cant seem to find a good "confirm password" script 3. The form does not submit if all the fields are correct. <script language="javascript"> <!-- function checkAge() { var bday=parseInt(document.forms[0].txtBday.value); var bmo=(parseInt(document.forms[0].txtBmo.value)-1); var byr=parseInt(document.forms[0].txtByr.value); var byr; var age; var now = new Date(); tday=now.getDate(); tmo=(now.getMonth()); tyr=(now.getFullYear()); { if((tmo > bmo)||(tmo==bmo & tday>=bday)) { age=(tyr-byr) } else { age=(tyr-(byr+1)) } if (age<18) { alert ("you must be over 18 years"); return false; } else { return true; } } } //--> function checkEmail() { var x=document.getElementById("email").value; var atpos=x.indexOf("@"); var dotpos=x.lastIndexOf("."); if (atpos<1 || dotpos<atpos+2 || dotpos+2>=x.length) { alert("Not a valid e-mail address"); return false; } { return true; } } function onlyNumbers(evt) { var e = event || evt; // for trans-browser compatibility var charCode = e.which || e.keyCode; if (charCode > 31 && (charCode < 48 || charCode > 57)) return false; { return true; } } function checkCardNumber() { var x = document.getElementById("cardNumber").value; if (x.length<16) { alert("Your Credit Card Number must be 16 digits"); return false; } { return true; } } function checkSecurityCode() { var y = document.getElementById("securityCode").value; if (y.length<3) { alert("Your Security number must be three digits"); return false; } { return true; } } function ValidateExpDate() { var ccExpYear = 20 + $F('<%= expYear.ClientID%>'); var ccExpMonth = $F('<%= expMonth.ClientID%>'); var expDate=new Date(); expDate.setFullYear(ccExpYear, ccExpMonth, 1); var today = new Date(); if (expDate<today) { alert("card expired"); // Credit Card is expire return false; } else { // Credit is valid return true; } } function runall() { checkAge(); checkEmail(); checkCardNumber(); checkSecurityCode(); { return false;} } </script> Hi, validation for pin must not be allow given below conditions 6 rising consecutive numbers(e.g 123456,456789 etc) 6 Descending consecutive numbers (eg. 654321,987654) All same digit (eg 111111,222222) Same digit appearing 3 or more time in pin code (eg:121212,1111432) Hello Every1 I need to edit the below form to use JavaScript to Validate if thr Title was put or Not .. its a template i use at my site to add comment and i want the Title to be Requier .Javascript seems the easiest way for me but dont know how. PHP Code: <{if $commentany.com_itemid}> <form action="comment_post.php" method="POST"> <input type="hidden" name="com_itemid" value="<{$commentany.com_itemid}>"> <input type="hidden" name="XOOPS_TOKEN_REQUEST" value="<{$commentany.xoops_token_request}>"> <table class='outer' cellspacing='1' style="margin-top:2em;"> <tr> <th colspan="2"><{$smarty.const._MB_COMMENTANY_LANG_NEW_COMMENT}></th> </tr> <{* <tr> <td class='head' align='left'><{$smarty.const._MB_COMMENTANY_LANG_RULE}></td> <td class='odd' align='left'> <{$commentany.rule_text}> </td> </tr> *}> <tr> <td class='head' align='left'><{$smarty.const._MB_COMMENTANY_LANG_ICON}></td> <td class='odd' align='left'> <{foreach item=i from=$commentany.com_icon}> <input type="radio" name="com_icon" value="<{$i}>"><img src="<{$smarty.const.XOOPS_URL}>/images/subject/<{$i}>"> <{/foreach}> </td> </tr> <tr> <td class='head' align='left'><{$smarty.const._MB_COMMENTANY_LANG_TITLE}></td> <td class='odd' align='left'> <input type="text" name="com_title" size="64" maxlength="255" value="<{$xoops_default_comment_title}>"> </td> </tr> <tr> <td class='head' align='left'><{$smarty.const._MB_COMMENTANY_LANG_TEXT}></td> <td class='odd' align='left'> <{xoopsdhtmltarea name="com_text" cols=50 rows=4}> </td> </tr> <{* <tr> <td class='head' align='left'><{$smarty.const._MB_COMMENTANY_LANG_OPTION}></td> <td class='odd' align='left'> <input type="checkbox" name="dosmiley" value="1" checked><{$smarty.const._CM_DOSMILEY}><br/> <input type="checkbox" name="doxcode" value="1" checked><{$smarty.const._CM_DOXCODE}><br/> <input type="checkbox" name="dobr" value="1" checked><{$smarty.const._CM_DOAUTOWRAP}><br/> </td> </tr> *}> <tr> <td class='head' align='left'></td> <td class='even' align='left'> <input type='submit' class='formButton' name='com_dopreview' id='com_dopreview' value='<{$smarty.const._MB_COMMENTANY_LANG_PREVIEW}>' /> <input type='submit' class='formButton' name='com_dopost' id='com_dopost' value='<{$smarty.const._MB_COMMENTANY_LANG_SUBMIT}>' /> </td> </tr> </table> <input type="hidden" name="dohtml" value="0" /> <input type="hidden" name="dosmiley" value="1" /> <input type="hidden" name="doxcode" value="1" /> <input type="hidden" name="dobr" value="1" /> </form> <{/if}> <{$commentsnav|replace:'button':'hidden'}> 1.I want to retain the value of the item selected from the drop down list even if the validation fails 2. The input element should be hghlighted red in colour which fails the validation <html> <script type="text/javascript"> <!-- function validate_form1 ( ) { valid = true; if ( document.contact_form1.question1.value=="" || document.contact_form1.question2.value == "" ) { alert ( "Select at least one option." ); //document.getElementById("question1").focus(); document.getElementById('contact_form1').question1.focus(); valid = false; } return valid; } function validate_form2 ( ) { valid = true; if ( document.contact_form2.question1.value=="" || document.contact_form2.question2.value == "" ) { alert ( "Select at least one option." ); //document.getElementById("question1").focus(); valid = false; } return valid; } //--> </script> <table border="5" width="300"> <tr> <td> <form name="contact_form1" action="DBsaving.php" method="post" onSubmit="return validate_form1 ( );"> 1. Question <select name="question1"><option selected="q1" value="">Select One...</option><option value="1">Yes</option><option value="2">No</option></select><br /><br /> 2. Question <select name="question2"><option selected="selected" value="">Select One...</option><option value="1">Yes</option><option value="2">No</option></select><br /><br /> 3. Faculty ID : <textarea name="comments" rows="2" cols="4"></textarea> <input type="submit" value="Submit" /> </form> </td> <td> <form name="contact_form2" action="DBsaving.php" method="post" onSubmit="return validate_form2 ( );" > 1. Question <select name="question1"><option selected="q1" value="">Select One...</option><option value="yes1">Yes</option><option value="no1">No</option></select><br /><br /> 2. Question <select name="question2"><option selected="selected" value="">Select One...</option><option value="yes">Yes</option><option value="no">No</option></select><br /><br /> 3. Faculty ID : <textarea name="comments" rows="2" cols="4"></textarea> <input type="submit" value="Submit" /> </form> </td> </tr> </table> </html> Hi i need help with an assignment that validates forms using javascript. Using my instructors example as a guide, i wrote this if you click submit on the example it properly returns false and displays an error message, in my assignment it does nothing but submit to the echo while im trying to get an error message. The assignment is unfinished but i wanted to test out the first bit of code and its not working. Hey guys, im a bit of a loser with Javascript and need a bit of validation done but I have no idea what the problem is with my code, can anyone help? Form: Code: <div id="Layer3">
<form id="form" name="form" method="post" onsubmit='return formValidator(form)' action="Candidate output.php">
<p class="style3"><u>Search for a Candidate </u></p>
<p class="style3">Candidate ID
<input type="text" name="CandidateID" />
</p>
<p class="style3">File
<select name="File">
<option>--Select--</option>
<option>To be deleted</option>
</p>
<p class="style3">Name
<input type="text" name="Name" />
</p>
<p class="style3">Current Job Title
<select name="Current_Job_title">
<option>--Select--</option>
<option>Accessories</option>
</select>
</p>
<p class="style3">Contact Telephone
<input type="text" name="Contact_Telephone" />
</p>
<p class="style3">Contact Email
<input type="text" name="Contact_Email" />
</p>
<p class="style3">Town
<input type="text" name="Town" />
</p>
<p class="style3">County
<select name="County">
<option>--Select--</option>
<option>Aberdeenshire</option>
</select>
</p>
<p class="style3">Postcode
<input type="text" name="Postcode" />
</p>
<p class="style3">Languages spoken
<input type="text" name="Languages_Spoken" />
</p>
<p class="style3">Previous Job Title
<select name="Job_Title" >
<option>--Select--</option>
<option>Accessories</option>
</select>
</p>
<p class="style3">Previous Employer
<input type="text" name="Employer" />
</p>
<p class="style3">Previous Employment Type
<select name="Employment_Type">
<option>--Select--</option>
<option>Manufacturer</option>
</select>
</p>
<p class="style3">Previous Department Type
<select name="Department_type">
<option>--Select--</option>
<option>Accounts</option>
</select>
</p>
<p class="style3">Order By
<select name="Order_By">
<option>--Select--</option>
<option>CandidateID</option>
</select>
<input type="checkbox" name="Desc" value="y" />
Decending (Ascending leave unchecked)
</p>
<p class="style3">
<input type="submit" name="Submit" value="Submit" />
</p>
</form>
</div>
Validation in the <Head>;
<script language="JavaScript" type='text/javascript'>
function formValidator(form){
// Make quick references to our fields
var CandidateID = document.getElementById('CandidateID');
var Name = document.getElementById('Name');
var Contact_T = document.getElementById('Contact_Telephone');
var Contact_E = document.getElementById('Contact_Email');
var Town = document.getElementById('Town');
var Postcode = document.getElementById('Postcode');
var Ls = document.getElementById('Languages_Spoken');
var P_Employer = document.getElementById('Previous_Employer');
/*http://www.tizag.com/javascriptT/javascriptform.php*/
// Check each input in the order that it appears in the form!
if(isNumeric(CandiateID, "Please enter numbers only")){
if(isAlphabet(Name, "Please enter letters only")){
if(isNumeric(Contact_T, "Please enter numbers only")){
if(lengthrestriction(Contact_T, 11)){
if(emailValidator(Contact_E, "Please enter a valid email address")){
if(isAlphabet(Town, "Please enter letters only")){
if(postit(Postcode, "Please enter a valid Postcode")){
if(isAlphabet(LS, "Please enter letters only")){
if(isAlphabet(P_Employer, "Please enter letters only")){
return true;
}
}
}
}
}
}
}
}
}
return false;
function isNumeric(elem, alerttxt){
var numericExpression = /^[0-9]+$/;
if(elem.value.match(numericExpression)){
return true;
}else{
alert(alerttxt);
elem.focus();
return false;
}
}
function isAlphabet(elem, alerttxt){
var alphaExp = /^[a-zA-Z]+$/;
if(elem.value.match(alphaExp)){
return true;
}else{
alert(alerttxt);
elem.focus();
return false;
}
}
function isAlphanumeric(elem, alerttxt){
var alphaExp = /^[0-9a-zA-Z]+$/;
if(elem.value.match(alphaExp)){
return true;
}else{
alert(alerttxt);
elem.focus();
return false;
}
}
function lengthRestriction(elem, max){
var uInput = elem.value;
if(uInput.length >= uInput.length <= max){
return true;
}else{
alert("Please enter between 0 and " +max+ " characters");
elem.focus();
return false;
}
}
function emailValidator(elem, alerttxt){
var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
if(elem.value.match(emailExp)){
return true;
}else{
alert(alerttxt);
elem.focus();
return false;
}
}
function postit(elem, alerttxt){ //check postcode format is valid
test = document.details.Postcode.value; size = test.length
test = test.toUpperCase(); //Change to uppercase
while (test.slice(0,1) == " ") //Strip leading spaces
{test = test.substr(1,size-1);size = test.length
}
while(test.slice(size-1,size)== " ") //Strip trailing spaces
{test = test.substr(0,size-1);size = test.length
}
document.details.Postcode.value = test; //write back to form field
if (size < 6 || size > 8){ //Code length rule
alert(test + " is not a valid postcode - wrong length");
document.details.Postcode.focus();
return false;
}
if (!(isNaN(test.charAt(0)))){ //leftmost character must be alpha character rule
alert(test + " is not a valid postcode - cannot start with a number");
document.details.Postcode.focus();
return false;
}
if (isNaN(test.charAt(size-3))){ //first character of inward code must be numeric rule
alert(test + " is not a valid postcode - alpha character in wrong position");
document.details.Postcode.focus();
return false;
}
if (!(isNaN(test.charAt(size-2)))){ //second character of inward code must be alpha rule
alert(test + " is not a valid postcode - number in wrong position");
document.details.Postcode.focus();
return false;
}
if (!(isNaN(test.charAt(size-1)))){ //third character of inward code must be alpha rule
alert(test + " is not a valid postcode - number in wrong position");
document.details.Postcode.focus();
return false;
}
if (!(test.charAt(size-4) == " ")){//space in position length-3 rule
alert(test + " is not a valid postcode - no space or space in wrong position");
document.details.Postcode.focus();
return false;
}
count1 = test.indexOf(" ");count2 = test.lastIndexOf(" ");
if (count1 != count2){//only one space rule
alert(test + " is not a valid postcode - only one space allowed");
document.details.Postcode.focus();
return false;
}
alert("Postcode Format OK");
return true;
}
</script>
Im sure there are a few syntax errors but any and all help is greatly appreciated |
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