AJAX :: Check If User Is Still There?
May 14, 2011
Not sure if I posted this in the right area since its a Javascript/PHP related problem.I have no clue how to check if a user didn't leave the site.Ofcourse you can use the Onunload() or Beforeunonload() function.But some browsers like Opera and Safari and who know what other browsers don't support it.Is there any other alternative?Like expecting server side each X seconds a AJAX request from the user?If the user doesn't send a request, the user has left.
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Jul 24, 2010
I'm creating an AJAX user validation so that when a user types in a username, it checks it in the database to see if it exists. I want it to execute after the user finishes typing. I've tried using:
$("#username_field").keyup(function(){
which works, but I don't want a query executed every time the users presses a key. I was wondering if there was a better way to do it. Meaning I what the check to be preformed after the user finishes typing.
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May 31, 2009
I want to check whether the user have enabled javascript on their browser or know if not then give an alert msg.
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Nov 4, 2010
i installed a shout box for my users, its integrated by using session username. but what i want to do is have a username list under the shoutbox that shows which members (usernames) have the box open. that way the other members can see someone is out there to see their message.. one alternative would be to just have the shoutbox auto open (which i need to learn how to do) as soon as they sign on to the site, but what if they close it right away i still have the same issue (they cant see the message that someone is sending them) here is how i open the window now, they have to click on the link.
<a href="#" onClick="javascript:popup=window.open('shoutbox/minichat.php','SHTB','status=0,menubar=0,resizable=0,scrollbars=0,width=297px,height=300px');"><font size="2">Shoutbox</font></a>
so how do i know which users have it open? and how to i autostart the shoutbox? (do i used onload and onunload?)
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Apr 28, 2010
Is there a method to check if a user refreshed a page?
I'm designing an online psychological experiment and I want to see if the user refreshed a page (to see if he was trying to see an image that he was supposed to see only once).
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Jan 6, 2010
i am using netbean to develop a registration form.As this i want to know what is the coding to check input of text, integer, email , so i can restrict what they input..
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Mar 13, 2009
I need to find a way of modifying this function so it only initiates a request if there is a period of say 2 seconds of inactivity. The user inputs some text, and if they stop typing for 2 seconds, it should then fire off the request. Can someone tell me how i can check for inactivity in the #inputString field? This must involve some kind of timer, but how should it be structured?the lookup function sends the current value of inputstring to another function which posts it to the server side file which then returns the results in a box.
$(function() {
$('#inputString').keyup(function(e) {
[code]....
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May 14, 2011
how to check if a user didn't leave the site.Ofcourse you can use the Onunload() or Beforeunonload() function.But some browsers like Opera and Safari and who know what other browsers don't support it. And I don't want to have false information about users still being there while they left.Is there any other alternative? Like expecting server side each X seconds a AJAX request from the user?If the user doesn't send a request, the user has left.
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Dec 6, 2010
<?php
if($_SESSION['id'])
echo '<h1>Hello, '.$_SESSION['usr'].'! You are registered and logged in!</h1>';
else echo '<h1>Please, <a href="demo.php">login</a> and come back later!</h1>';
echo 'Should i find a new login'
?>
im trying to use this as a check to see if someone is logged in
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Jul 2, 2007
I currently run a website similar to digg, where users can vote on a story. What I have been using so far to create the vote buttons, are just simply links that insert a vote into a database. And if a user tries to vote again on the same story, it attempts to insert the vote into the database, (im using MySQL btw), but when it cannot, they are redirected to a page where it tells them they have already voted on the story.
Now I thinking there has to be a better way to do this, and that's when digg came to mind. Can someone please point me in the direction of a javascript tutorial/wiki etc. on creating javascript buttons that interact with a mysql database AND remember that you have voted.
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Feb 11, 2011
As this forum has been so helpful before, this time it's a JS question:I have a list of checkboxes from which the user can select 1 or more to check and perform an action upon.Thus, all checkboxes have the same "name" (in ASP code, since it's DB-related):
response.write "<input type=checkbox name=""FieldName"" value="&obj("OrderID").value&">"
I call JS using a button:
<img src="images/TrashBin.png" border=0 onclick="Delete(document.FormName.FieldName)">
[code]....
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Mar 31, 2009
I'm trying to figure out with Java Script how I would have Java Script check and see if a check box is or not empty. The goal is to only allow the user to have one box checked at any time in a form. That means, if they click on another one and there is already one checked, it would uncheck the one that was checked and make the one that the person checked on next checked.
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Dec 20, 2011
I am trying to allow a user to easily uncheck/check all checkboxes in a form by checking or unchecking a checkbox. The checkboxes would be in a form like so:
<form action="" method="post">
<input type="checkbox" name="checked[]" value="1">
<input type="checkbox" name="checked[]" value="2">
<input type="checkbox" name="checked[]" value="3">
<input type="checkbox" name="checked[]" value="4">
</form>
I use an event handler to call a function:
<input type="checkbox" name="checkall" onchange="checkall('checked[]', this.checked)">
And here is the function:
function checkall(box_name, current_state) {
all = document.getElementsByName(box_name);
action = (current_state == "checked") ? "false" : "true";
for (i = 0; i < all.length; i++) {
all[i].checked=action;
}}
The event handler should pass the name of the checkboxes and whether the "check all" checkbox is currently checked or not to the checkall() function. Nothing happens when I check/uncheck the "check all" function.
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Feb 24, 2009
I would like to disable a check box depending on whether 1 of 3 radio buttons is chosen by the user. As I am a js noob, I don't have any beginning code to start with.
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Oct 6, 2009
So I have a new window document write which outputs all my data after validation into a new window, I have tried to write a button which will (when clicked) send that information to an email address. here is my code so far. i spent about 2 hours checking and playing around looking for errors couldnt find any. I think the problem is the function EmailForm and function subwrite. Is a button written into a new window a common thing to do? or is there another simpler way, however i want the user to be able to check to see if there data is valid and then click to send the email.
<HTML>
<!--learn to program through JavaScript-->
<mymerch.HTML>
<HEAD>
<TITLE> mymerch </TITLE>
<SCRIPT LANGUAGE=JavaScript>
//declaringvariables
var firname;
var surname;
[Code]...
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Dec 8, 2011
i need to ask the user for details about a car, i will not know how many cars are going to be stored and therefore need an array i think. I need the function for asking the user and will need to repeat the code later in a menu. at this stage i just want to ask the user for input, store it in array and use an alert to check if it works?
<html>
<script>
// Purpose: Gather car information and store it in a datbase
// Ask user for REG info, CAR MAKE, car VIN
var CarDetails = {
RegNum:"",CarMake:"", CarVin:"";
}
[Code]...
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Jan 31, 2011
I’m developing a site for some hotels in baltimore.I want to incorporate a booking widget similar to the one on: http:[url].... Where a user can select 1 of 4 property’s to check for availability.
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Oct 31, 2009
Basically, i have a past and present checkbox, start date and leave date. Now if the user clicks on the "present" checkbox i want the leave date checkbox to vanish and if clicked again i want to re-appear..Take a look at this page:-http:[url].....
now you can see at the moment i have the checkboxes past, present and 2 text boxes beneath. Can i do this?
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Apr 6, 2010
I need to create a form that expands or collapses with more or less fields to fill in when the user selects or deselects a check box on it. This form also needs to be secure. What is the best way to accomplish this?
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Feb 27, 2006
Does anyone know is it possible to check if ajax call was redirect? i mean I connect by Ajax to one URL but I'm redirected to other url. Is there a way to check that my request was redirected? this situation happen when some urls are only accesible when you are logged (i mean you have session) and if you losed session you are usually redirect to other page. But I don't know is it possible to check that my call was redirect. For now wheatever my AJAX call was redirect or not i get status 200 (it's OK)...
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Apr 7, 2009
I have two AJAX commands. One creates a list of items, the next highlights a specific item on that list. I don't want to combine these two commands because I often use them separately in different functions. However, the first command - the one that lists the items in an innerHTML - must complete before the second command is called. I used to just set a few seconds (as you'll see below) before the next command was called, but now the list is growing longer, and it no longer works. Is there some kind of command to only execute it when the previous command is ready, like "onReadyState"? Code:
[Code]...
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Nov 11, 2011
I have this script that is supposed to check if a number the user guesses is the same as the randomly generated number.Problem is that the random number generated at the start of the program keeps on changing everytime I click on the "Check if I'm right" button, the random number gets generated again and I never ever get to reach the correct answer
HTML CODE
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
[code].....
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Apr 20, 2010
is there a way to assign an event to a file input so that when a user selects a file to upload the event is triggered and i can check out the file extension? The reason why is simple, i want to perform different actions depending on the type of the file.
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Jun 26, 2010
disable select until user puts mark in check box. Then enable select.I have two select box's on a page. The first asks what product, the second is based on the first and presents a list of pdf's according to which product the user selected. (yes, multi dimensional)What I have works fine, but now i need to make the user put a check mark in a check box before the First SELECT box becomes enabled/available.So basically, when they agree, they can get the download.Here are my select boxes.
HTML Code:
<form>
<select name="category" style="width:180px"></select>
<select name="site" style="width:180px" onchange="openLink(this.value)"></select>[code]....
(ignore the The 'open' button. It's there in case the default option is what the user wants, so they don't have reselect via the select box.)
1. How do I disable the select boxes by default on page load?
2. How do I detect that the user has put a tick in and the enable the disabled Select box?
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Mar 2, 2011
I am trying to check the user enter time with current system. If user enter the time less than the current system time then I want to display the alert box. But the code is not working. Here is the code
<html>
<head>
<title>test</title>
<script type="text/javascript">
var d = new Date();
var curr_hour = d.getHours();
var curr_min = d.getMinutes();
[Code].....
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Jun 18, 2011
Dear friends, I'm using Jquery like this
$('#ArtechGallery,#DomaineGallery').click(function () {
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "FetchGallery.asmx/GetGallery",
data: '{ "FolderName" : "' + DivID + '"}',
dataType: "json
[Code]...
how to prevent it, I need to remove this line before it creates second time..
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