Using OnLoad() To Focus Login Form- Error Handling
Feb 26, 2006
I am trying to fix error- object does not exist- I want it possible to
allow object not to exist.
I am writing a script on a page that may or may not include a login
form. For example-after a visitor logs in, the login form is no longer
on the page, but other content is still there.
I want to bring focus to the login form using the onLoad in the body
tag.....but if the login form does not exist, I do not want to perform
this function.
The following code works fine for focusing the cursor on to the login
form.
(code)
<html>
<head>
<title>
Testing Javascript
</title>
<script type="text/javascript">
<!--
function addcursor ()
{
if (document.login) {
document.login.username.focus();
}
}
//-->
</script>
</head>
<body OnLoad ="addcursor()">
<form name="login" id="login" action="" method="post">
<input type = "text" name="username" id="username" />
<input type="password" name="password" />
</form>
</body>
</html>
(end code)
But if you remove the form in the body section from the code, an error "object does not exist or is null" results.
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Jul 21, 2011
I was trying to create JavaScript error handling for a form, and I was trying to get an error message to show up underneath the field where there was an error. (I am trying to avoid alert boxes.) I only have two fields, and my problem is that only one field is showing an error message. If I place an error in the input for the second field, the error shows up under the first field. How can I get the error messages to show up under the correct form field?
Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "[URL]">
<html xmlns="[URL]">
<head>
<meta http-equiv="Content-type" content="text/html;charset=UTF-8" />
<title>Carrots</title>
<style>
.qty {
width: 25px;
text-align: right;
}.blank {
display: none;
} .....
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Feb 12, 2004
Is this possible? I'm sure it's something simple with window.onload
Here's the 1st field I'm using:
<input type="text" maxlength="65">
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Jul 20, 2005
I create two iframes dynamically to get data from the server.
I want to deal with the data after it's downloaded, so I set the two
iframes' onload event handlers to current document(not the iframe self), the
handlers' JS code is generated dynamically too.
But I found only the second event is triggered and I can't get the first
iframe's onload event.
Why? The data in the first iframe is really arrived, but it doesn't trigger
the onload event.
Is there any other better way to conceal download data from server, not
refresh current document?
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Aug 3, 2006
I have managed to create a very basic form validation script that I can retrospectively add into current forms with the least effort.
As far as the validation goes I am sure that the script is not pretty, but it does work. However, I have failed to manage to get it to return the focus to the first field that errors.
My abortive attempts are not included in the attached script because I have tried and failed with many different attempts that I have confused myself. I would appreciate any advice that could point me in the right direction to place the focus in the first error field found. Code:
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Dec 13, 2007
I am trying to code a reusable error handling function for my JavaScript objects. I thought is would be possible to display the name of the function. So this way, when an error occurs, I can display the error along with the name of the function the error occurred in. Is it possible to display the name of the function from within the function?
These examples do not work but I did try them.
<html>
<head>
<script language="JavaScript">
function display()
{
alert( this.toString() );
alert( this.name );
alert( this );
}
</script>
</head>
<body>
<a href="javascript: display();">Display</a>
</body>
</html>
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Sep 17, 2009
I'm not an expert with javascript nor am I too familiar with the syntax. What I'm trying to do is store all errors into an array like so:
Code JavaScript:
var errors = new Array();
var example = '';
if (example == '') {
errors[] = 'This example field is empty';
}
What I'm trying to do at the end is display the array if its not empty into a DIV called errors (or something). I know how to do this in PHP but I'm trying to do first validation layer through javascript. So something like this:
Code JavaScript:
<div class="errors">
if (errors != '') {//If the array is not empty
for (keyvar in errors) {
document.write(array[keyvar]);//Display Errors
}
}
</div>
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Jul 20, 2005
I need help finding where an error is occuring in my code. I use a
try-catch block like this in my global.asa:
} catch (e) {
Application('errormsg') = ("An exception occurred in the script. Error
name: " + e.name
+ ". Error description: " + e.description
+ ". Error number: " + e.number
+ ". Error message: " + e.message); }
And this is what is SOMETIMES returned when I display
Application('errormsg'), the rest of the time, it works:
An exception occurred in the script. Error name: Error. Error description:
Path not found. Error number: -2146828212. Error message: Path not found
But I don't know which path is not found! (I'm using the filesystem object
and importing data from a file into SQL.) Is there a way to display the
line number of the error or more details? Or do I just have to try to catch
the error by going through each bit of code?
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May 27, 2009
I am new to ajax, meaning I know nothing what so ever of programing ajax. I want to do a simple login interface with email and password (with php), but i also want that when I press submit button it show a box with "please wait..." message (this box must slide, from the top of the page). Also this box will display errors messages such as, "invalid email or password" and so on.
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Mar 14, 2006
I'm trying to validate all the pages on my site as XHTML 1.0 Transitional but I don't know much javascript so I'm totally stuck on this error:
The tag: "img" doesn't have an attribute: "onload" in currently active versions.[XHTML 1.0 transitional] Code:
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May 5, 2010
When a user in somewhere of a site, he/she may want to login to access some user restrict pages. He/she clicks a login link on the menu and sign in on the login page. How to use JQuery to let the user back to the page where he/she clicks the login link?
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Dec 22, 2009
In Chrome, the login page on my schools educational online platform doesn't remember the login info. So i made a bookmark with this javascript injection, that fills in the info, and focusses on the 'aanmelden' button (='login' in dutch), so that i only have to press enter to continue. Here's the javascript injection:javascript: ocument.getElementById('username').value='23889493984';document.getElementById('password').value='4 42384985';return false;document.getElementById('login').focus();This works fine but i'd like to make it happen faster. I wish i could let the script be activated instantly when the page loads, so i only have to press enter, or if possible, let the script click the login button itself.
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Apr 10, 2011
Is there a way to set the focus on a form field without using focus()? I use ajax to build the form and if I try to set the focus using focus() an error is generate because of the form hasn't been built by ajax. So, it would be nice if I could set the focus() as I built the form.
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Jun 24, 2011
I want two buttons: one for login and another for logout. Initially login button is enabled and logout button is disabled. When I click on login button, the logout button should get enabled and the login button should get disabled. And after that, when i click on logout, the login button should get enabled and the logout button should get disable.
Here's how far I could go with it,but it doesn't work.
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Feb 1, 2011
I have a a html page that is used as a login page.I know it is not secure but this is just for learning purposes, I'm not using it for anything important.My problem is that when I put in the correct login all that happens is the page just clears the text boxes as if you were starting over.I am trying to get it to go to register.html which is located in the same directory as the login page.
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Sep 17, 2010
I am able to run perfectly the following
<li><a href="javascript:ajaxpage('login.php', 'ajax');">Login</a></li>
But not the following
echo "Welcome Guest!<br><a href=javascript:ajaxpage('login.php', 'ajax');>"
I removed the " around the javascript:ajaxpage('login.php'); as it was giving me syntax error. But I am unable to cal login .php upon clicking Login. I tried various combination of single quote and double quote but I think I am missing some fundamental rules of single and double quote combination....or may be something else.
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Dec 13, 2010
Below is the code which is used to validate the entries on a form(some field are not be left blank). The user gets the msg when he hits the "Check"button. The problem is after the user gets the msg, I am not able to set the focus in the field which is the first element of an error array which stores the info about the fields with errors on this form.code...
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Oct 17, 2011
I found his basic code online for a popup login but I don't know how to get the information from it either into php variables or whatever i need to do code...
I put the css on a separate page and just copied the login link and the javascripts. I don't know how to get the information into php variables so i can check it with the database.
I know I'm just asking for the answer but I don't know javascript and i don't want to spend a month learning it just for a login form. If your going to just say go learn javascript then don't post .
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Dec 7, 2011
i have a login page and it is separately in my index.phpnow i need my login page become a pop up form when I open my index.phphere is my login.php
<?php
include 'config.php';
session_start();
[code]....
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Dec 29, 2009
I am writing a form that grows using ajax server responses to info as the form is filled in and everything is fine in standards compliant browsers but IE is having a problem. I have two js functions on the page that collect form data, send it to the server, and then write the server response as innerHTML to specified divs on the page. This works great in FF but in IE it runs the first function but fails on the second function and the two functions are identical except for the server routine.
The div that is populated with the server response so it doesn't seem to be a problem with the coding because if one works, and they are identical, the other should work too so perhaps IE is choking with the way it is handling two ajax objects on the same page? You will need to add something to the shopping cart first at [uRL] and proceed to checkout, then on the checkout page look in the url and change ste_chkout_proc to ste_checkout_proc and load the new url to see the dev checkout vs. the live checkout.
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Dec 1, 2011
I've managed to open the login form in fancybox. When visitors login, the page opens in the i-frame itself. When they hit the close button of the fancy box, the parent page refreshes.Almost there but I would like to close the popup and refresh the parent page at one go with a proper function when a visitor hits the submit button
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Mar 4, 2009
I am trying to automate a login to a website and am learning jscript on the fly
java script:
var webstart ={
var email = prompt('Enter your Email Address:', 'Email...');
var pwd = prompt('Enter your Password:', 'Password...');
login: function() {
[Code]...
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Oct 15, 2010
I am just trying to have a login form on a page using div tags. After successful login without refreshing the page, the textboxes on the form should be replaced by Welcome message or displaying username and Logout button.
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Apr 24, 2009
I would appreciate any help I can get about setting focus back to a textbox after my javascript validates that the input by a user into the textbox is incorrect. You can see my attempt at this towards the end of the javascript with - dateStr.Edate.focus(); I know the dateStr part is incorrect but not sure what other variable to use. Plus I am guessing I need to put the statement right before each false statement since there are different errors that can occur by the user. Additionally, I have two textboxes that I want the same javascript to validate. How does this affect setting focus to the appropriate textbox after an incorrect input. I am new to javascript so I hope my question makes sense. Thanks.
<HTML>
<HEAD>
<TITLE>Life Connection Program Survey</TITLE>
<SCRIPT LANGUAGE="JavaScript">
function isValidDate(dateStr) {
// Checks for the following valid date format:
// MM/DD/YYYY
[Code]...
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Aug 25, 2010
I am trying to restrict focus to atextbox if there is input error, but with nosuccess. Here is my javascript:
$(document).ready(function () {
$("#txt_username").blur(function () {
var username_length;
username_length = $("#txt_username").val().length;
[Code]....
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Feb 14, 2010
I am having a particular problem with my Javascript page, which should change the form that the user is at. Need to proofread my code to check for errors? The code does not change the form (Also it does not run the PHP page, or at least does not display its output in the loginStatus div):
<html>
<head>
<link href="style.css" rel="stylesheet" type="text/css" media="screen" />
<title>
PHP Hardcoded Login Script!
</title>
<script>
function processLogin(form) {
var user = form.user.value;
var pass = form.pass.value;
var url = "processLogin.php?user=" + user + "&pass=" + pass;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
} .....
Why this is not working? The page running this code can be found at: [URL]
Another page without the signup form (that works) is at:
[URL]
The login for the pages is:
user: john_doe
pass:password
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