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JavaScript - Help To Validate A Textbox To Be Only Number 1 And 0
Hello guys, this is my first post here, im a newbie in javascript and i need to limit a textbox to only be 1 or 0,
I dont want to use a checkbox because i would like the users to really be typing. heres what i got: Code: <input name="test" type="text" onchange="validaten(this.value)" size="15" />
<script type="text/javascript">
function validaten(test)
{
if (test != 0);
alert("Only 1 and 0 are allowed");
}
</script>
Can you please help me? Similar Tutorialshi, I would to validate a textbox, and limit it to 3alphabets and 3 numbers. That is after the user have input 3 alphabets, he can only enter 3 numbers and nothing more. Can someone help me out? Arrrgggghhhhhhhhh - help.... - LOL Now I've got that over with, hope someone can help. Am just learning regular expressions and am trying to validate UK format telephone numbers (have had an extensive look on the web and only examples I can find are US tests). Anyway, I want to learn to do it myself. UK phone number rules a Must start with a 0 in position 1 Next 2 to 4 characters must be a number Next character can be a space or a dash Next 6 to 9 characters can be a number, space or dash only Anyway, as I say, am new to regular expressions and trying to learn so I tried to write the expression to fit the rules above - see below: Code: ^[0]{1}\d{2,4}\s|-{1}\d|\s|-{6,9}$
My logic (for what it's worth - LOL) tells me this should work, but it doesn't - it accepts letters as well - which I really don't understand yet. Anyway - hope someone can help. Thanks Dominic Good Afternoon All, I am slowly learning how to validate forms and the next topic I'm learning is the phone feature! My code isn't working and not sure why! I read other opinions and tried to follow some templates but again.. Nothing is working out for me.. Here is the code function validatePhone(fld) { var stripped = document.validatePhone.phoneNumber(/[\(\)\.\-\ ]/g, ''); if (document.validatePhone.phoneNmbr == "") { alert("Do not leave this field blank"); } else if (isNaN(parseInt(stripped))) { alert("Only enter numerical digits only"); } else if (!(stripped.length == 10)) { alert("No More or Less than 10 Digits"); } return error; } <body> <form name="validatePhone" action="" method="get"><br /> <br /> <input type="text" name="phoneNumber" value="" onClick="return validatePhone(fld)"> <br /> <br /> <input type="button" name="button" value="Validate Phone Number" > </form> </body> </html> If you have any suggestions or can provide links of how I can 1-Provide an alert if the field is blank 2-Provide an alert if non numerical digits are entered 3-Provide an alert if more than 10 digits are entered I think I am on the right track but need more of a push.. I'm not seeking a solution, just information to get me on that right track as I am extremely confused. Also.. I feel like I should be using a isDigit function? This is what I have so far, it is a template I copied from my working E-mail validation. I'm assuming I have to make it so it's just an array of numbers but I really don't know Java too well. Essentially I just want numbers only to be accepted into the phone field. Code: else if(fieldType == 'phone')
{
if((required == 1 && fieldObj.value=='') || (fieldObj.value!='' && !validate_phone(fieldObj.value)))
{
fieldObj.setAttribute("class","mainFormError");
fieldObj.setAttribute("className","mainFormError");
fieldObj.focus();
return false;
}
}
function validate_phone(phoneStr)
{
apos=phoneStr.indexOf("@");
if (apos<1||dotpos-apos<2)
{
return false;
}
else
{
return true;
}
}
Hello, I have a coding project that I am working on, and I have gotten stumped. Basically win the page loads I want to show random numbers in two textboxes or labels, I would prefer labels. What this is going to be used for is...it is suppose to be for a math learning tool for first, second and third graders. Also another question is that I am suppose to give them digits based upon their grade level. So for first grade 1+1=2 second grade 2 digits, third 3 digits but can have a four digit answer. Plus it can't have negative numbers, nor have remainders for division. Also I don't want to use buttons if at all possible I want the numbers to load automatically. I know this is a loaded question and I have worked tons on it, for me its trying to get the last few things to work together that's giving me trouble. If you would like to see sections of my code please ask cause it is tons as of right now. Thanks for your help. Hello all, I have a form that submits a POST request when data is submitted. A Servlet then processes this POST request and a JavaBean is used to make some calculations. The HTML response is not generated within the Servlet but instead I forward the request to a JSP to generate the response. - This all works fine, thankfully. However, I am stupidly suck trying to validate the form on the client side with a JavaScript function before the form is submitted. Here is my index.jps: Code: <%--
Document : index
Created on : 19-Nov-2009, 13:41:30
Author : lk00043
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/JavaScript">
<!-- Start hiding JavaScript Statements
function validateForm() {
var student;
var score1, score2, score3, score4;
student = document.getElementById('student');
s1 = document.getElementById('score1');
s2 = document.getElementById('score2');
s3 = document.getElementById('score3');
s4 = document.getElementById('score4');
score1 = parseInt(s1.value);
score2 = parseInt(s2.value);
score3 = parseInt(s3.value);
score4 = parseInt(s4.value);
if(student.value.length == 0) {
document.getElementById('StudentError1').innerHTML = " Enter a student name!";
return false;
}
if ((isNaN(score1)) || (score1 < 0) || (score1 > 100)) {
document.getElementById('Error1').innerHTML = " Enter a number between 0 and 100!";
return false;
}
if ((isNaN(score2)) || (score2 < 0) || (score2 > 100)) {
document.getElementById('Error2').innerHTML = " Enter a number between 0 and 100!";
return false;
}
if ((isNaN(score3)) || (score3 < 0) || (score3 > 100)) {
document.getElementById('Error3').innerHTML = " Enter a number between 0 and 100!";
return false;
}
if ((isNaN(score4)) || (score4 < 0) || (score4 > 100)) {
document.getElementById('Error4').innerHTML = " Enter a number between 0 and 100!";
return false;
}
}
// End hiding JavaScript Statements -->
</script>
<title>Lab Class 7 - Task 2</title>
</head>
<body>
<h1>Lab Class 7</h1>
<form name="collectgrades" action="AssessGrades" method="POST" onSubmit="validateForm()" >
Name of Student: <input type="text" name="student" id="student"/><span id="StudentError1"> </span><br />
Presentation: <input type="text" name="score" id="score1"/><span id="Error1"> </span><br />
Writing style: <input type="text" name="score" id="score2"/><span id="Error2"> </span><br />
Technical content: <input type="text" name="score" id="score3"/><span id="Error3"> </span><br />
Depth of analysis: <input type="text" name="score" id="score4"/><span id="Error4"> </span><br />
Feedback:<select name="feedback" size="4" multiple="multiple">
<option>"Could be better structured."</option>
<option>"Depth of analysis is good."</option>
<option>"Very advanced material."</option>
<option>"Very well structured."</option>
</select><br />
<input type="submit" value="Submit" />
</form>
</body>
</html>
Regardless of whether incorrect input is given, the data is still POSTed to the server and calculated on or a Server Side error is given. Am I correct in calling the function onClick? The validation essentially needs to be so that: - Student field contains a string - Score1, Score2, Score3 and Score 4 contain a number between 0 and 100 Any help is most appreciated, Cheers, Beetle. Hi.. I have form and i want to input data using barcode and it will display on textbox and after input on the first textbox the focus will go to next textbox untill it will go on the last textbox and on the last textbox it will automatically save the data's on the database. How is it possible? here is my sample code: Code: <?php
error_reporting(0);
date_default_timezone_set("Asia/Singapore"); //set the time zone
$con = mysql_connect('localhost', 'root','');
if (!$con) {
echo 'failed';
die();
}
mysql_select_db("mes", $con);
?>
<html>
<head>
<script type="text/javascript">
function ini()
{
// Retrieve the code
var code =document.getElementById ("code_read_box1").value;
var code =document.getElementById ("code_read_box2").value;
var code =document.getElementById ("code_read_box3").value;
var code =document.getElementById ("code_read_box4").value;
var code =document.getElementById ("code_read_box5").value;
var code =document.getElementById ("code_read_box6").value;
// Return false to prevent the form to submit
return false;
}
</script>
</head>
<body onLoad="document.barcode.code_read_box1.focus()">
<form name=barcode onsubmit = "return ini()">
<input type="text" id="code_read_box1" value="" /><br/>
<input type="text" id="code_read_box2" value="" /><br/>
<input type="text" id="code_read_box3" value="" /><br/>
<input type="text" id="code_read_box4" value="" /><br/>
<input type="text" id="code_read_box5" value="" /><br/>
<input type="text" id="code_read_box6" value="" /><br/>
</form>
</body>
</html>
Hello. I've been teaching myself HTML and CSS for a while, and now I've moved into the world of Javascript (but I'm still very much a beginner). For practice, I've been building a sample sign up form for a mock website, and I'm having problems with the birthdate section. The idea I had was to have MM, DD, and YYYY be the default values of my 3 textboxes (as an example for users), then set the value to nothing when the box gained focus. That all works fine, but I ran into problems when I tried to write an if statement to set the value back to MM, DD, or YYYY if the value was still nothing when the user clicked away. As it is now it just replaces the text inputted into the textbox (which of course is not good). Any ideas for what the problem might be? Code: <form name="signup" action="javascript:void(0);" method="post">
<table>
<tr>
<td>Date Of Birth:</td>
<td>
<input name="DOBmonth" type="text" value="MM" size="2" style="color: #555555;" onFocus="clearDOBmonth()" onBlur="restoreDOBmonth()" />
<input name="DOBday" type="text" value="DD" size="2" style="color: #555555;" onFocus="clearDOBday()" />
<input name="DOByear" type="text" value="YYYY" size="4" style="color: #555555;" onFocus="clearDOByear()" /></td>
</tr>
<tr>
<td></td>
<td><button name="Submit" type="submit" style="font-size: 1em;">Sign Up</button></td>
</tr>
</table>
</form>
<script type="text/javascript" language="javascript">
<!--
document.signup.DOBmonth.value="MM";
document.signup.DOBday.value="DD";
document.signup.DOByear.value="YYYY";
function clearDOBmonth() { document.signup.DOBmonth.value="";}
function clearDOBday() { document.signup.DOBday.value="";}
function clearDOByear() { document.signup.DOByear.value="";}
function restoreDOBmonth()
{
if ('document.signup.DOBmonth.value = ""')
{
document.signup.DOBmonth.value = "MM";
// alert(document.signup.DOBmonth.value);
}
}
//-->
</script>
Another side question, if I set a variable equal to the value of a textbox, then change the value of the variable, does that also change the value of the textbox? or is the variable no longer associated with the textbox. Example: Code: var a = document.form.textbox.value; a = blue; does document.form.textbox.value = blue? or is var a now completely independent of the textbox value? Thanks! I have a function below where every time a question is submitted, it will add a new row in the table with a textbox which allows numbers entry only. My question is that I don't know how to code these features in this function: 1: I want the text box to be between 0 and 100, so if text box contains a number which is above 100, it will automatically change the number to the maximum number which is 100. Does any one know how to code this in my function below in javascript: Code: function insertQuestion(form)
{
var row = document.createElement("tr");
var cell, input;
cell = document.createElement("td");
cell.className = "weight";
input = document.createElement("input");
input.name = "weight_" + qnum;
input.onkeypress = "return isNumberKey(event)";
cell.appendChild(input);
row.appendChild(cell);
}
When I used toFixed() method on a number, I thought that this method round a number to a specified approximation, but I got a surprising result, the number became string! 15.23689 .toFixed ( 2 ) ==> "15.24" So does it convert the number into string? I am trying to figure out how to make a random number I can plug into a script count down from that number at certain times of the day until it reaches 0. I would like it to reset itself at midnight every day. I'm trying to make it work with a script I found on here that resets itself at midnight every day. So instead of it counting down too fast, it would count down to the next number after a randomly generated number of minutes until it reaches 0. But it wouldn't necessarily have to end at 0 at midnight. It could go from 845 to 323 at the end of the day at a slower pace. Is that possible?
Please see my Booking Form here http://www.n-v-m.co.uk/Booking.html The form is very nearly finished but I have no experience with JavaScript at all so I am hoping somebody can tell me how to do the finishing touches. All I require is: 1- On clicking the 'Submit order' button I would like the browser to check to see if the 'Is Vehicle roadworthy with full M.O.T.:' List/Menu is set to 'Yes' and if not it needs to return an alert stating it must be set to 'Yes' to proceed... Somebody kindly helped show me how to do the alert before so this is working, but, the problem at the moment is after clicking 'OK' to close the alert, the form is still submitted. At this point instead of the form being submitted I would just like the browser to return to the form. 2- There is a checkbox on the bottom of the form that states 'I agree with the Terms and Conditions'... To be able to proceed with a booking I need the customer to check the box... On clicking 'Submit order' if the box isn't checked I would like an alert to appear and the form not to be submitted. 3. When both the above criteria have been met and the form is ready to submit... I would like the browser to re-direct to http://www.n-v-m.co.uk/Thankyou.html which is a page I have already created on my server. Thanks for taking your time to read this... If it helps I have posted both my HTML and PHP codes below: Booking.html 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>National Vehicle Movements - Booking Form</title>
<style type="text/css">
<!--
body {
background-color: #1d255f;
margin: 0px;
padding: 0px;
}
#apDiv1 {
position:absolute;
width:487px;
height:706px;
z-index:auto;
left: 50%;
top: 433px;
font-family: Arial, Helvetica, sans-serif;
font-size: 10px;
font-weight: bold;
text-align: center;
textarea-align: center;
background-position: center;
margin-left: -244px;
}
-->
</style>
<script type='text/javascript'>
function isValid() {
var box = document.getElementById('Is Vehicle Roadworthy with Full M.O.T.');
if(box.value = 'no') {
alert('The vehicle must be roadworthy with full M.O.T');
return false;
}
}
</script>
</head>
<body>
<div align="left">
<div id="apDiv1">
<form id="form1" name="form1" method="post" action="sendform.php" onsubmit='validatethis()'>
<table width="400" border="0" align="center">
<tr>
<td width="193" align="right">Company:</td>
<td width="197" align="left"><input type="text" name="company" id="Company" /></td>
</tr>
<tr>
<td align="right">Name:</td>
<td align="left"><input type="text" name="name" id="Name" /></td>
</tr>
<tr>
<td align="right">Phone Number:</td>
<td align="left"><input type="text" name="phonenum" id="Phone Number" /></td>
</tr>
<tr>
<td align="right">Email Address:</td>
<td align="left"><input type="text" name="email" id="Email" /></td>
</tr>
<tr>
<td align="right">Vehicle Make and Model:</td>
<td align="left"><input type="text" name="vmam" id="Vehicle Make and Model" /></td>
</tr>
<tr>
<td align="right">Vehicle Reg./Ref. No.:</td>
<td align="left"><input type="text" name="vreg" id="Vehicle Reg." /></td>
</tr>
<tr>
<td align="right">Collection Address including Postcode:</td>
<td align="left"><textarea name="colladd" rows="4" id="Collection Address"></textarea></td>
</tr>
<tr>
<td align="right">Collection Contact Name:</td>
<td align="left"><input type="text" name="collconname" id="Collection Contact Name" /></td>
</tr>
<tr>
<td align="right">Collection Contact Number:</td>
<td align="left"><input type="text" name="collconnum" id="Collection Contact Number" /></td>
</tr>
<tr>
<td align="right">Delivery Address including Postcode:</td>
<td align="left"><textarea name="deladd" rows="4" id="Delivery Address"></textarea></td>
</tr>
<tr>
<td align="right">Delivery Contact Name:</td>
<td align="left"><input type="text" name="delconname" id="Delivery Contact Name" /></td>
</tr>
<tr>
<td align="right">Delivery Contact Number:</td>
<td align="left"><input type="text" name="delconnum" id="Delivery Contact Number" /></td>
</tr>
<tr>
<td align="right">Collection Date/Time:</td>
<td align="left"><input type="text" name="collectiondt" id="Collection Date/Time" /></td>
</tr>
<tr align="center">
<td colspan="2" valign="top"><em>(if possible please give a time window eg. '7th - 9th August' and we will arrange collection for you)</em></td>
</tr>
<tr>
<td align="right">Delivery Date/Time:</td>
<td align="left"><input type="text" name="deliverydt" id="Delivery Date/Time" /></td>
</tr>
<tr align="center">
<td colspan="2" valign="top"><em>(if possible please give a time window eg. '7th - 9th August' and we will arrange delivery for you)</em></td>
</tr>
<tr>
<td align="right">Is Vehicle Taxed:</td>
<td align="left"><select name="Taxed" id="Is Vehicle Taxed">
<option>Yes</option>
<option selected="selected">No</option>
</select></td>
</tr>
<tr>
<td align="right">Is Vehicle roadworthy with full M.O.T.:</td>
<td align="left"><select name="mot" id="Is Vehicle Roadworthy with Full M.O.T.">
<option>Yes</option>
<option selected="selected">No</option>
</select></td>
</tr>
<tr>
<td align="right">Billing Address:</td>
<td align="left"><textarea name="billadd" rows="3" id="Billing Address"></textarea></td>
</tr>
<tr align="center">
<td colspan="2" valign="top"><em>(if same as collection or delivery address please enter 'collection' or 'delivery')</em></td>
</tr>
<tr>
<td align="right">Your Ref./Order No. (if any):</td>
<td align="left"><input type="text" name="custordnum" id="Customer Ref./Order No." /></td>
</tr>
<tr>
<td align="right">Any additional comments:</td>
<td align="left"><textarea name="addcom" rows="3" id="Any additional comments"></textarea></td>
</tr>
<tr align="center" valign="middle">
<td colspan="2">
<p>
<input type="checkbox" name="checkbox" id="checkbox" />
I agree with the <u><a href="Terms.html">Terms and Conditions</a></u></strong></p>
<p> </p></td>
</tr>
<tr align="center">
<td colspan="2"><input type="submit" name="button" id="button" value="Submit order" onclick="isValid()" />
<input type="reset" name="button2" id="button2" value="Reset form" /></td>
</tr>
</table>
</form>
</div>
</div>
<div align="center"><img src="images/Booking_03.jpg" width="680" height="1352" border="0" usemap="#Map" />
<map name="Map" id="Map">
<area shape="rect" coords="36,155,158,173" href="index.html" alt="Home" />
<area shape="rect" coords="29,174,151,189" href="Prices.html" alt="Prices" />
<area shape="rect" coords="475,191,578,206" href="mailto:info@n-v-m.co.uk" alt="Email us" />
</map>
</div>
</body>
</html>
sendform.php Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<BODY>
<?php
$Name = $_POST['name']; //senders name
$to = "info@n-v-m.co.uk"; //recipient
$subject = "Order from ".$_POST['company']." (".$_POST['name'].")"; //subject
$message = $_POST['company']."|".$_POST['name']."|".$_POST['phonenum']."|".$_POST['email']."|".$_POST['vmam']."|".$_POST['vreg']."|".$_POST['colladd']."|".$_POST['collconname']."|".$_POST['collconnum']."|".$_POST['deladd']."|".$_POST['delconname']."|".$_POST['delconnum']."|".$_POST['collectiondt']."|".$_POST['deliverydt']."|".$_POST['Taxed']."|".$_POST['billadd']."|".$_POST['custordnum']."|".$_POST['addcom']; //mail body
$from = "NVM Booking Form"; //
$headers = "From: ".$from."\r\n"; //optional headerfields
mail($to, $subject, $message, $headers); //mail command :) you can add any variable here... I know you have so many, but it is possible...
if(mail)
echo "Booking confirmed. Thank You!";
else
echo "Sorry We Can't Proceed, Please Try After Some Time!";
?>
</BODY>
</HTML>
Is there a y regular expression which we can use in JavaScript to validate URL? Or any other type of validation to validate URL which has http or https?
I am trying to make validation for a form but the bit I am stuck on now is: Code: <input class="submit" type="submit" value="Submit" id="submit" name="submit" onclick="return validate();" /> Do I have to add 'verify' instead of the 'validate' I mean is this a set thing in JS as I want it to go to the JavaScript code which is validate.js I should add that the form is XHTML and there is also a captcha with it. So I would not know how to add the onsubmit to the beginning of the form. All, I have a page that has some checkboxes in it. I have the following function for that: Code: function checkbeforesubmit(field)
{
for (var i = 0; i < field.length; i++){
if(field[i].checked){ // if a field is checked form is submitted
alert("You have checkboxes that are selected. Add the photos before you go to the next set of pictures!");
return false;
}
}
return true; // if no fields are checked form not submitted
}
I then a link to go to the next page and I want to check to see if any checkboxes are selected before I go to the next page. I try and check this by doing this: Code: onClick="checkbeforesubmit(document.photos.elements['picbigid[]'])" It does the check and says that a checkbox is selected but will still go to the next page anyway. How can I stop it from going to the next page? Thanks! I have a group of checkboxes named "list[]". I want to validate that at least one is checked. How can I do this?
I am trying to create an onChange action that will validate that confirmation checkbox has been checked, and if not, popup an alert message and put the focus on the checkbox input and change the class of the container DIV to "highlight". Here is the form, with the 'onchange' trigger: Code: <form id="checkout" name="my_form" method="post" action="!---SCRIPT_NAME---" onsubmit="return validForm(this);"> <div id="verification" class="aligncenter required"> <input type="checkbox" id="verified" name="verified" value="" /> <label for="verified">YES</label>, the items and quantities shown above are correct.</div> <div class="required"><label for="name">Name:</label><input id="name" name="contactname" type="text" class="L" onchange="" /></div> <div class="required"><label for="company">Company Name:</label><input id="company" name="company" type="text" class="L" /></div> <div class="buttonRow"><input type="submit" name="VERIFY" class="btn red" value="Continue" /></div> </form> And here is my javascript code: Code: function verifyOrder() {
if (document.my_form.verified.checked != "true") {
alert("Please verify the contents of your order");
document.my_form.verified.focus();
getElementById('document.my_form.verification').className='highlight'
return false;
}
}
But this is not working and generates errors in firebug. What am I doing wrong? Thanks!! How do I fix the problem that autocomplete does not validate, I have heard before that there is a dirty way to do this but did not want to do this before, but now feel i must as my boss wants the site error free ! does anyone know how I do this ? I have this script to validate contact form fields. It works fine for checking that fields are not blank. I added the valid email code, which I copied from the w3schools web site. But, it does not work. I am confused about how to reference the email form field name. That is really the only thing I changed, that is, I added the frm.elements to the email variable. Can anyone please help? Thanks! Code: function validate_form(frm)
{
frm.elements.name.className = "input";
frm.elements.email.className = "input";
frm.elements.subject.className = "input";
frm.elements.comments.className = "input";
var errors=0;
//
// NAME cannot be blanks
//
if (isBlank(frm.elements.name.value)) {
frm.elements.name.className = "inputreq";
errors++;
}
//
// EMAIL ADDRESS cannot be blanks
//
if (isBlank(frm.elements.email.value)) {
frm.elements.email.className = "inputreq";
errors++;
}
//
// SUBJECT cannot be blanks
//
if (isBlank(frm.elements.subject.value)) {
frm.elements.subject.className = "inputreq";
errors++;
}
//
// COMMENTS cannot be blanks
//
if (isBlank(frm.elements.comments.value)) {
frm.elements.comments.className = "inputreq";
errors++;
}
//
// EMAIL ADDRESS appears invalid
//
if (validate_email(frm.elements.email.value,"Not a valid e-mail address!")==false) {
alert("TEST");
frm.elements.email.focus();
return false;
}
//
// Errors
//
if (errors>0) {
alert("Please enter all fields!");
return false;
}
//No errors
//frm.submit();
}
function isBlank(value)
{
regexp = /^\s*$/
return (value==null || regexp.test(value));
}
// Validate email address
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;}
}
}
|
|||||||