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JavaScript - Strict Javascript Validation For Beginner
Hi, I am fairly new at Javascript but have some ability - though I can't figure this one out.
I need a JavaScipt "IF Statement" that validates that a Text Field is in the format of 2 Letters then 2 Numbers. The field also has to contain a total of 4 characters no matter what. For example, every entry for that Text Field has to be in the following format: AB34 I would sincerely appreciate anyones help! Similar TutorialsI've just discovered (through trial and error) that if a variable is assigned a value without first being declared, it automatically has global scope, even if it is assigned inside a function. This is a pain in the butt because if you forget the var keyword, then suddenly ... whoops! You've got yourself a global variable! Is there any way that I can make javascript throw an exception if I fail to declare a variable before assigning a value to it? It would make things much easier, rather than having to hunt through increasingly complex functions to find that pesky unintentionally global variable. Hi people I'm hoping someone can help me. I have NO knowledge of Javascript but I'm not afraid of code and happy to look at it and work out what is doing what. I need someone to provide me with a small sample of code to get me started on this task. I need a webpage with a number of drop down menus. Depending on what the user selects in these menus, depends on what sentence or paragraph is then displayed in a box. For example you might have a page dedicated to food. So the user would select egg in the first drop down and the box will change to display "you can't make much with that on it's own".# You'll then select flower in the second and it'll adjust to a paragraph maybe explaining where you could go next with that. In my page I need 6 drop down menus with about 8 choices in each menu (nothing related to food). Not sure if I would need to tie this in with a database or if I could just make do with the code on the page. As I said I'm hoping someone can just kick me off with something do I can get a rough idea of how I would go about coding it. Maybe an example contain 3 drop down menus with 2 choices on each and a few possible sentences or paragraphs that it could generate in a box. If not then any advice would be really appreciated as I said I'm a complete newbie and I've never even looked at Javascript code to my knowledge. Many thanks Hi every one I'm a beginner to java so I have a home work assignment and I'm suppose to create a soda machine thing. What I'm trying to do is make the price of soda * quantity of soda which will equal to the price with tax but I cant figure it out @_@. I know what I'm doing wrong with the "Total" button and the "value" and "quantity" and I've been looking over the internet and playing with it like crazy. So if anyone can help me figure this out that would be great. The code and a pic is on the bottom i hope i gave you guys enough info. This is what im trying to do. is this code right its supposed to be a code that prompts the user for a number less than 100 and outputs only odd numbers less than or equal to the number entered by the user.for example if a user eneters the number 10 you should display 1,3,5,7,9 to the browser window?...im not sure if i have done it right..i gave it a go though! var input = prompt("Enter a number less than 100:", "10"); if( input <= 100){ nbsp; for (var i = 1, i <= input, i++2){ nbsp; document.write(i", "); nbsp; } }else{ nbsp; alert(input + " is not less than 100!"); } I dont know the first thing about java script but I also didnt know the first thing about html and css but someone showed me a few basic things to gt started and Ive excelled in both using dreamweaver. I just needed the basics and then I was able to work through it. Just like that I need help starting out with Java Script. Basically, Ive made a website and now I am trying to put in a slider(it is a photo slider which has a box drop down on the right with a description when it changes photos.) I was told to make a slider.css file in the css folder and a slider.js file in the java script folder. I coded everything correctly in the source code page to get the slider up and running. But it wont work. Am I supposed to have a Java script program downloaded or something? Please help if you know what Im talking about Ive hit a road block and if you can walk me through this process I would really appreciate it and I can continue with my project. Thanks I have to design a javascript program to capture five different numbers (monetary values), and save it in memory. Then another one that converts that value to, let's say, Euros, and display interest and commisions (which are values I'll have to add later, but the actual coding for the calculation is what's confusing to me. Let's just say, take 10% out of the initial value for interest, and 15% for commission). I would appreciate any help
Hello, I very new to this language and I still feel like I'm not grasping it... But, anyways, I'm doing a thing for school and I have to let the user input a string. I need to save the string and turn it into an array. For every word that is less than five letters I put "little" at the beginning of the word and for every word that is more than five letters I put "big" at the end of each word. Then I need to return the new string into output. I think I wrote the code really incorrectly, so any tips/advice would be much appreciated! Also, I don't understand adding user input into a code if that makes sense. The tutorials/lessons I've been looking at all say to put information into an array first and then mess with it. But, what if you don't have information in the array until the user puts it in? And once they enter it, then you mess with what they entered. I can't seem to get how to do that. Thank you for your time Code: function texter(newText){
var oldHTML = document.getElementById('outputPrompt').innerHTML;
document.getElementById('outputPrompt').innerHTML = newText+"<br />"+oldHTML;
console.log(newText);
}
function menuTwo(){
var userInput = document.getElementById('input').value;
var correctedInputArray = userInput.toLowerCase().split(" ");
var mainTwo = new Array([""]);
for(var i=0; i<correctedInputArray.length; i++){
var thisWord = correctedInputArray[i];
var lessFive = 5;
var moreFive = 6;
var restOfWord;
if(lessFive<5){
mainTwo[i]=thisWord+"-little";
}else if(moreFive>6){
mainTwo[i]="big-"+thisWord;
}
else{
restOfWord = thisWord.substr(1, thisWord.length-1);
}
}
output = mainTwo.join(" ");
texter(output);
}
</script>
</head>
<body>
<h1>Document</h1>
<input type='text' id='input' />
<input type='button' onclick='menuTwo()' value='submit'/>
<p id='outputPrompt'>Please enter 1,2,3 or exit only</b> </p>
</body>
</html>
What I'm trying to test out and learn is the process of a form using the get methode to print out the entered number to another test.htm page 1st code is the form Code: <html> <head> <script type="text/javascript"> </script> </head> <body> <form action="test.htm" method="get"> <font size="1" face="tunga">Enter a number</font> <input type="text" name="number" size="2"> <input type="submit" value="Submit"> </form> </body> </html> the 2nd code is the test.htm page I was hoping the value of var = number would document.write to this page. I was hoping I could do this without using ASP of php. I can see in the URL after the second page loads that the var number dos = the numbered entered but I can not get it to display. Code: <html>
<head>
</head>
<body>
<script type="text/javascript">
document.write("The number you entered is " + number);
</script>
</body>
</html>
as you can see im a beginner and im trying to learn this. I hope its not a stupid question Thanks John I want to learn javascript and I found codecademy.com which seems like a great way to learn the language. Before the first lesson it says Quote: You should be comfortable with loops, if statements, functions, and objects before attempting this course. Can someone explain what these are or point me in the direction where I can find the answers? I tried searching with google, but I havent found anything that clearly states what exactly the loop, object, etc. is. Hi, I am working on a simple javascript craps game program. I need some advice since it won't display who the winner is, keep tally of who wins/loses, and the number of total games played. After using the error console there's an error with document.forms[0].thrower.value not being defined. Can anyone help me with this? PHP Code: <html> <head> <title> JavaScript Craps Game</title> <script type="text/javascript"> <!-- var n,die_1,die_2,total,h_won,c_won, flag, point,winner; function get_num() { var max = 6; var number=Math.random()*max + 1; var result=Math.floor(number); return result; } function roll_dice() { die_1 = get_num(); die_2 = get_num(); total= die_1 + die_2; // Insert the results of the dice into the appropriate fields document.getElementById("die1").innerHTML= die_1; document.getElementById("die2").innerHTML= die_2; document.getElementById("total").innerHTML= total; //document.forms[0].die1.value = die_1; //document.forms[0].die2.value = die_2; //document.forms[0].tot.value = total; //Subtracting 0 from these values forces them to be typed as numbers if (flag){ //This means we rolled something other than 2,3,7,11, or 12 so we have a point var th = document.forms[0].thrower.value; if (total == point) { //X wins winner = "x"; calculate_winnings(th,winner); flag = 0; //document.forms[0].flag.value="0"; game_count(); } else if (total == 7){ //Y wins winner = "y"; calculate_winnings(th,winner); flag = 0; //document.forms[0].flag.value="0"; game_count(); } } else{ var thwr = document.forms[0].thrower.value; if (total == 7 || total == 11) { //X wins document.getElementById("winner").innerHTML= "X Wins!"; //document.forms[0].winner.value= "X Wins!"; winner = "x"; calculate_winnings(thwr,winner); game_count(); } else if (total == 2 || total == 3 || total == 12){ //document.forms[0].winner.value= "Y Wins!"; document.getElementById("winner").innerHTML= "Y Wins!"; winner = "y"; calculate_winnings(thwr,winner); game_count(); } else { point = total; document.getElementById("winner").innerHTML= "Waiting for a 7 or a " + point; // document.forms[0].winner.value="Waiting for a 7 or a " + point; flag = 1; //document.forms[0].flag.value="1"; } } } function game_count() { //for keeping track of games if (n){ n = n + 1; } else { n = 1; } document.forms[0].totalgames.value = n; //return n; } function calculate_winnings(thrower,winner) { var button = document.forms[0].thrower.checked; if (button) { if (winner == 'x') { //computer was thrower and X won //document.forms[0].winner.value="Computer Wins!"; document.getElementById("winner").innerHTML= "Computer Wins."; add_to_computer_win(); } else { //computer was thrower and Y won //document.forms[0].winner.value="You win!"; document.getElementById("winner").innerHTML= "You win!"; add_to_human_win(); } } else { if (winner == 'x') { //human was thrower and X won //document.forms[0].winner.value="You Win!"; document.getElementById("winner").innerHTML= "You Win!"; add_to_human_win(); } else { //human was thrower and Y won //document.forms[0].winner.value="Computer Wins!"; document.getElementById("winner").innerHTML= "Computer Wins."; add_to_computer_win(); } } thrower = 0; } function add_to_human_win(){ if (h_won){ h_won = h_won + 1; } else { h_won = 1; } document.forms[0].human_won.value=h_won; } function add_to_computer_win(){ if (c_won){ c_won = c_won + 1; } else { c_won = 1; } document.forms[0].computer_won.value=c_won; } --> </script> </head> <body> <h1> <center> Craps Game </center></h1> <hr> <form> <table border="1"> <tr> <td width="45%" align="center"> <center><b><font size="4">Play!</font></b></center> <p><input type="button" name="roll" value="Roll Dice!" onclick="roll_dice()"></p> <table border="1"> <tr> <td>Die #1</td><td>Die #2</td><td>Total</td> </tr> <tr> <td><div id="die1"></div></td> <td><div id="die2"></div></td> <td><div id="total"></div></td> </tr> </table> <p>Result of roll: <div id="winner"></div></p> <!--<input type="text" size="30" name="winner" value=""></p>--> <p> </p> </td> <td width="35%"> <table border="1" cellspacing="7"> <tr> <th colspan="2" ><font size="4">Statistics:</font><br> <input type="text" size="2" name="totalgames" value="0"> total games played</th> </tr> <tr> <td align="center">Your wins</td><td>Computer wins</td> </tr> <tr> <td align="center"><input type="text" size="2" name="human_won" value="0"></td> <td align="center"><input type="text" size="2" name="computer_won" value="0"></td> </tr> </table> </td><td width="20%" align="center"> This will clear your statistics and start a new game<br> <input type="submit" name="startover" value="New Game"> </td></tr></table> <hr> <h3><a name="Help">Help</a></h3> <pre> The game of craps is a dice game played by two players, You and The House. First you toss the pair of dice. If the sum of the dice is 7 or 11, you win the game. If the sum is 2, 3, or 12, the house wins. Otherwise, the sum is designated as the "point," to be matched by another toss. So if neither player has won on the first toss, then the dice are tossed repeatedly until either the point or a 7 comes up. If a 7 comes up first, the house wins. Otherwise, you win when the point comes up. </body> </html> Help me anyone I am completely stuck. If you do this I shall build a shrine in your honour. In the following code the 'for' loop gets data from the relevant tags of an XML file, then puts them into the 'txt' variable. It then moves onto the next record in the XML file and does the same thing. However, I don't want the contents of txt to be overwritten each time the code loops through each record. Instead I want it to add to txt, then loop around and add the new contents of txt to the previous contents of txt. I tried txt = txt + artist + title + year; but this didn't work. Can anyone explain how to do this? Please note the contents of the variables are strings of text not numbers. Code:
x=xmlDoc.getElementsByTagName("CD");
i=0;
function displayCD()
{
for (var i=0;i<x.length;i++)
{
artist=(x[i].getElementsByTagName("ARTIST")[0].childNodes[0].nodeValue);
title=(x[i].getElementsByTagName("TITLE")[0].childNodes[0].nodeValue);
year=(x[i].getElementsByTagName("YEAR")[0].childNodes[0].nodeValue);
txt= "Artist: " + artist + "<br />Title: " + title + "<br />Year: "+ year;
}
document.getElementById("showCD").innerHTML=txt;
}
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) 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;
}
}
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>
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 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> 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> I have problem with my javascript form validation... Validation works only on last question and I can't understand why it doesn't work on other questions.. Html code : 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>
<script type="text/javascript" src="script.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Questionaire</title>
<link href="oneColLiqCtrHdr19.css" rel="stylesheet" type="text/css" />
<style type="text/css">
<!--
body {
background-color: #FFF;
background-image: url(images/aa.jpg);
}
-->
</style></head>
<body class="oneColLiqCtrHdr">
<div id="container">
<div id="header">
<h1> </h1></div>
<!-- forms -->
<form action="http://projects.knord.dk/interaction/saveforminfo.aspx" method="post" onsubmit="return checkform(this);" >
<input type="hidden" name="surveyid" value="knjuku2" />
<input type="hidden" name="usecookie" value="true" />
<input type="hidden" name="landingpage" value="h---.html" />
<p align="center"><b>This survey was made for Business Academy Copenhagen North project not for FDIM.</b></p>
<p>
<b>Please enter your personal information</b>
</p>
<p><b>Your Occupation:</b>
<input type="text" name="occupation" />
</p>
<p><b>Age Group:</b>
<select name="age">
<option value="under 18">less then 18</option>
<option value="18-25">18-25</option>
<option value="26-35">26-35</option>
<option value="over 35">more then 35</option>
</select>
</p>
<p><b>Status:</b>
<select name="status">
<option value="single">Single</option>
<option value="single with children">Single with children</option>
<option value="in relationship">In relationship</option>
<option value="married">Married</option>
<option value="divorced">Divorced</option>
</select>
</p>
<p><b>Gender:</b>
<input type="radio" name="gender" value="male" /> Male
<input type="radio" name="gender" value="female" /> Female
</p>
<p><b>Do you have a job?</b>
<input type="radio" name="job" value="yes" />Yes
<input type="radio" name="job" value="no" />No
</p>
<p> </p>
<p>
<!-- 1 vopros -->
</p>
<p><b>1. Why do You use online social media?</b>
</p>
<p>
<input type="radio" name="bla" value="To chat with friends" />
To chat with friends<br></br>
<input type="radio" name="bla" value="To read news" /> To read news<br></br>
<input type="radio" name="bla" value="To write blogs" /> To write blogs<br></br>
<input type="radio" name="bla" value="Other" /> Other<br></br>
</p>
<p>
<!-- 2 vopros -->
<b>2. What online social media do You use more often?</b>
</p>
<p> </p>
<p>
<select name="more">
<option value="MySpace">MySpace</option>
<option value="Twitter">Twitter</option>
<option value="Facebook">Facebook</option>
<option value="LinkedIn">LinkedIn</option>
</select>
</p>
<p> </p>
<!-- 3 vopros -->
<b>3. When do You use it?</b>
<p>
<input type="radio" name="use" value="1" /> At home<br></br>
<input type="radio" name="use" value="2" /> At work<br></br>
<input type="radio" name="use" value="3" /> At school<br></br>
<input type="radio" name="iuse" value="4" /> In the bus/train<br></br>
<input type="radio" name="use" value="5" /> Other<br></br>
</p>
<p><b>4. How much hours approximately do You spend on social media?</b>
</p>
<select name="hours">
<option value="less than 2 hours">less than 2 hours a day</option>
<option value="2-4 hours">2-4 hours a day</option>
<option value="4-8 hours">4-8 hours a day</option>
<option value="8-12 hours">8-12 hours a day</option>
<option value="more than 12 hours">more than 12 hours a day</option>
</select>
<p> </p>
<p>
<!-- 5 vopros -->
<b>5. Do You use social media often?</b></p>
<p>
<input type="radio" name="often" value="Yes" />
Yes
<input type="radio" name="often" value="No" /> No
<!-- 6 vopros -->
</p>
<p><b>6. Social Media website to which You usually upload</b></p>
<p>
<input type="radio" name="upload" value="Youtube" /> Youtube<br></br>
<input type="radio" name="upload" value="Flickr" /> Flickr<br></br>
<input type="radio" name="upload" value="Photobucket" /> Photobucket<br></br>
<input type="radio" name="upload" value="Slideshare" /> Slideshare<br></br>
<input type="radio" name="upload" value="Other" /> Other
</p>
<!-- 7 vopros -->
<b>7. Where do You chat with Your friends</b>
<select name="chatting">
<option value="Msn">Msn</option>
<option value="Skype">Skype</option>
<option value="Yahoo!">Yahoo!</option>
<option value="Other">Other</option>
</select>
<p> </p>
<!-- 8 vopros -->
<b>8. You use social media for</b>
<select name="using">
<option value="Personal reasons">Personal reasons</option>
<option value="Professional reasons">Professional reasons</option>
<option value="Don't use it">Don't use it</option>
</select>
<p> </p>
<p>
<!-- 9 vopros -->
<b>9. You prefer to obtain the information You need at</b>
<select name="information">
<option value="Yahoo!">Yahoo!</option>
<option value="Google">Google</option>
<option value="Wikipedia">Wikipedia</option>
<option value="Ask">Ask</option>
<option value="Other">Other</option>
</select>
</p>
<!-- 10 vopros -->
<b>10. What do You prefer to do being online</b>?
<select id="drop" name="online">
<option value="Read blogs">Read blogs</option>
<option value="Chat with friends">Chat with friends</option>
<option value="Watch videos">Watch videos</option>
<option value="Read news">Read news</option>
<option value="Other">Other</option>
</select>
<!-- konec voprosov -->
<!-- button-submit -->
<p align="center">
<input type="submit" value="Submit" />
</p>
</form>
<!-- end #container -->
</div>
</body>
</html>
Javascript validation Code:
//Javascript Document
function checkform ( form )
{
if (form.occupation.value == "") {
alert( "Please enter your occupation." );
form.occupation.focus();
return false ;
}
return true ;
}
function checkform(f) {
for (var i=0; i<f.elements("gender").length;
i++) {
var radio = f.elements("gender")[i];
if (radio.checked) {
return true;
}
}
// no checked radio button found
window.alert("Choose your gender!");
f.elements("gender")[0].focus();
return false;
}
function checkform(f) {
for (var i=0; i<f.elements("job").length;
i++) {
var radio = f.elements("job")[i];
if (radio.checked) {
return true;
}
}
// no checked radio button found
window.alert("Choose if you have a job!");
f.elements("job")[0].focus();
return false;
}
function checkform(f) {
for (var i=0; i<f.elements("bla").length;
i++) {
var radio = f.elements("bla")[i];
if (radio.checked) {
return true;
}
}
// no checked radio button found
window.alert("Answer question number 1");
f.elements("bla")[0].focus();
return false;
}
function checkform(f) {
for (var i=0; i<f.elements("use").length;
i++) {
var radio = f.elements("use")[i];
if (radio.checked) {
return true;
}
}
// no checked radio button found
window.alert("Answer question number 3!");
f.elements("use")[0].focus();
return false;
}
function checkform(f) {
for (var i=0; i<f.elements("often").length;
i++) {
var radio = f.elements("often")[i];
if (radio.checked) {
return true;
}
}
// no checked radio button found
window.alert("Answer question number 5!");
f.elements("often")[0].focus();
return false;
}
function checkform(f) {
for (var i=0; i<f.elements("upload").length;
i++) {
var radio = f.elements("upload")[i];
if (radio.checked) {
return true;
}
}
// no checked radio button found
window.alert("Answer question number 6!");
f.elements("upload")[0].focus();
return false;
}
Where is my mistake? And how to solve it to make javascript validation work properly? |
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