Ajax Asynchronous Or Synchronous - Make A Page Which Loads The Div's - "freezes" And SetInterval Does Not Work
Oct 24, 2010
I want to make a page which loads the div's with ajax The html code of the page is
Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
//styles and other script code
<script language="javascript" src="../js/intro.js"></script>
</script>
[Code]....
Now the problem is that javascript "freezes" and setInterval does not work.. Is there any solution to load the files order such i have it in code one-by-one and run the message function?
View 2 Replies
ADVERTISEMENT
Aug 26, 2010
When I try to fetch a page asyncronously I get a status 0 and the response text is empty: PHP Code:
var loaderImage = document.getElementById("loader");
loaderImage.style.display = "inline";
xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState==4 && xmlhttp.status == 200) {
response = xmlhttp.responseText;
alert(response);
[Code]....
View 7 Replies
View Related
Aug 8, 2011
synchronous vs asynchronous $.post
may i know the difference?
View 4 Replies
View Related
Aug 20, 2011
I need to create a callback for a line of code that performs asynchronous work so that another a line of code can be called after it is finished. I've found a number of webpages that attempt to show how this can be done with two functions, one calling the other in Russian-doll fashion, but I can't see how to do it with my code.It takes the URL of a sound file, redefines a previously defined embed to point at that sound file, and then plays it. The problem is that I lose focus on the documentElement that was selected before the playIt() function is called. So in the playIt() function I save the focused element in a variable and focus() it after the embed-switcheroo and autoplay is performed. This doesn't work, because the "e.parentNode.replaceChild(clone, e);" is performed asynchronously; when it finishes, it clears the focus in the document (internal id's have changed? Reason unknown.) So I need the focus() code to follow the replaceChild() code. I want to accomplish this by having the focus() code execute as a callback following the replaceChild() code. How would I break this into two procedures, one calling the other, reproducing a synchronous flow?
View 8 Replies
View Related
Dec 9, 2011
I'd like to process several blocks of parallel actions, but in a sequential manner.
As an example:
Thus, I want to process blocks, from which I don't know how long they will take and afterwards have a couple of actions, before beginning with another block. I already tried it through using .queue, .ready() etc, but that leads to very ugly or unusable code..
View 1 Replies
View Related
Oct 7, 2006
I've got a script that, onload, loops through every tag on the page (getElementsByTagName ('*')) and can be pretty slow on some of my pages with MANY tags.
What I'm wondering is if there's some way I can tell the browser to run the script asynchronously, without locking up the browser while it loops through all the tags and adds its objects and properties to them?
I'm pretty sure I've made the script about as effecient as possible. There's just no way around checking all the tags.
View 3 Replies
View Related
Apr 7, 2011
I want to send another ajax request when one request is in process to get the status of first request.
If I call both the request the second request gets blocked till the completion of the first request.
View 2 Replies
View Related
Jul 22, 2009
I am writing up a page to collect user input, and then generate an excel file.
The generation of the excel file is slow (more than 30 sec), so I decide to separate the input stage and file creation stage.
What I do is, collect user input, save to mysql, and pass a url (to the page of excel file creation) to javascript. Javascript will be triggered by setTimeout and run ajax to call the url after 2-3 seconds. This is the page structure of how I do it code...
The problem is, when the ajax is called, I cannot navigate around the pages (in the iframe of index.php). There is no error, but seems to be "loading". I have tried to use the same browser window to access the same site on the server, and also other sites on the Internet, to make sure the server is not busy to respond or the network is fully occupied.
View 11 Replies
View Related
Dec 12, 2009
I have been using asynchronous requests for a long time. so the response was processed in a callback function. I thought of not using async so i made synchronous requests. The reason is that i dont have to have two more lines for checking the status and the onreadystatechange.... my synchronous requests would be like this...
[Code]....
so from the code you can understand that there is no need of a callback function and if conditions to check ready state... ... So there is no problem in the above code. The problem araises here... if i press the F5 (refresh) key or do a page refresh when the process is waiting for the response i get an (NS ERROR - firefox ( i have not yet checked that in IE browsers) (javascript error) though the process completes successfully. why?
Do we have to check whether the page is navigating away while in synchronous operation and abort the request? or what could be the reason for the error. This will not happen in async requests because that is also the reason for async...
View 3 Replies
View Related
Jun 21, 2011
I am using a form validation class I got from the internet. Now I have a main page wherein I have a <div id="form"></div> that, using AJAX, displays other pages with forms like textboxes, etc. for a user to input. Here is the code for my main page:
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>
[Code]...
View 2 Replies
View Related
Jan 2, 2011
I have a select drop down that triggers a change event to update my database. I am new at programming, so hopefully I am overlooking something obvious. My Jquery code actually works as desired to update the database, but when I try to add a overlayed "loading, please wait" message to the user, I can't get it to turn off and the page freezes. debugging the javascript in Firebug, It seems this code returns a 404 status, so it makes sense to me that my overlay will not turn off, but seems strange that the code updates the database as desired. what is wrong with this code? How can I get the overlay to turn off?
[Code]...
View 3 Replies
View Related
Oct 29, 2009
The following javascript loads after the page loads. Is there a way to change this onload function and make it work as the page is loading?The javascript is meant for mousewheel scrolling for a horizontal website. The website I am using this for has a fixed width - 29000px
Code:
*/
window.onload = function() {
tinyScrolling.init();[code]...
View 3 Replies
View Related
Jul 20, 2005
I have a slide show program. First theres stuff to set up the array, and the time between slides Then a function startIt()is defined then a function stopIt()
Then two buttons, Start and Stop, which when pressed call the relevant
functions.
When the page loads, you have to click the Start button to get the
slide show running, but I'd like it to start running straight away
without having to click. I can't for the life of me figure this out.
I thought it was just a question of putting the line
startIt(); Code:
View 2 Replies
View Related
Oct 1, 2009
I see when I post a link to Facebook for a youtube video that it shows a thumbnail. When i click the thumbnail it plays the video right there on my facebook page.
I am wondering how do they do that trick?
So, let me take a guess.
Facebook is probably using some RSS feed aggregator to pull the info from YouTube.
They probably are also using maybe jQuery + CSS to hide the video at first. When you click the thumbnail it shows the video and then the video begins playing.
So, two questions: if that is how they do it then How do they make the hidden video not play when the page loads? how do they get it to start playing automatically once the video is revealed?
View 3 Replies
View Related
Apr 20, 2009
I have an ajax call that I want to display an ajax loader image before it makes the call and then hide that image after it completes the call. The below code is working fine in FF. But when the code is run in IE, for some reason the ajax call is made first and then the image isn't displayed until after the ajax call has completed. I've tried putting the .show() method before the ajax call and even in the beforeSend option of the ajax call, for some reason IE STILL makes the ajax call, and waits for it to complete, before it displays the image.
[Code]...
View 1 Replies
View Related
Mar 17, 2010
I'm having (once again) tremendous problems with IE (7), trying to create an application that behaves properly.
This time, it's with Ajax calls triggered by a button click, which do not behave asynchronously.
Here is the highlight of what I'm trying to achieve: a button clicked sends an ajax call to the server whilst the call is made and until the callback function has returned (or an error has been identified), a "wait" animation is triggered. (in the case below, simulated by appending a status in a div)
To achieve this, I decide to use .ajaxStart(), .ajaxStop() and .ajaxError() to trigger the wait animation. It works perfectly in FF and Chrome, but (as usual) not in IE. In IE, when I press the button, the button remains depressed until the ajax call is finished, and then all statuses are dumped at once onto screen. Not very asynchronous...
Here is my code:
If I uncomment line 11 and uncomment the alert, it seems that this forces IE to do things in the proper order. Obviously that's not a solution however...
Will I have to (once again) write IE-specific code to get things working properly?
View 3 Replies
View Related
Feb 22, 2011
I'm trying to make a little loop that in each itteration executes a little php script to send mail with the mail() function. the php script returns either succes or failure. Now its my intention to append that msg to a div, after every execution.
$.ajax({
type: "POST",
data: dataString2,
url: "sendmail.php",
async: false,
success: function(result)
{
showStatus(result);
[Code]...
the show status(result) is nothing more then a .append(result) the zenMails(y) calls this function again to send the next mail. It does work though but it only updates the div after the entire loop is done, i 'ld think it ld do so after every execution since i call the showstatus when the synchronous call is done and only after that i call the next iteration. Is there anyway to work aroud this ? (making the call assync doesnt work , because the port for sending the mail would still be in use)
View 1 Replies
View Related
Jun 29, 2009
I have an ajax based page, which loads content from external page (html +js) So if i have a div "update_div" being updated with external content (html+js)
Let me be more specifig
Step1: Ajax content along with js loaded into update_div from a.html
Step2: Ajax content along with js loaded into update_div from b.html
What happens to the js loaded from a.html? Is it lurking in the memory or automatically/magically removed from the browser memory? I am afraid of memory leaks, if the js is still lurking in memory, the more ajax calls made, the more js is going to be held up in memory. Unless am totally wrong; i have no idea of the mechanism happening.
View 11 Replies
View Related
Dec 2, 2011
It seems like when I load javascript code into a page, that each item I add, such as an accordian vertical navbar, image slider, etc, that each time I add one, the page loads a second or so slower with each one added. I would like some of these features, but is this just a part of life, or are there tricks to avoid the slower load time? It is not major time but after the 2 items I mentioned, it added on about 2 seconds.
I read that $(document).ready(function() might slow me down but I do not see that statement in any of my .js files.
View 4 Replies
View Related
Nov 4, 2011
I cant make this work here is what I have in my logged_in.php file .
<html
View 5 Replies
View Related
Sep 21, 2011
I have an ajax script which loads new content onto the page when the main navigation links is clicked. I also have a jquery script which fades divs in and out when another subset of links are clicked.
I guess these scripts essentially do the same thing but the first basically is loading in 'pages' without the page having to refresh. The second is just fading in and out divs that are on a page.
The problem is is that the second script only seems to work once, when the page is loaded.
Here they are:
View 2 Replies
View Related
May 19, 2009
In one of our files we with a <marquee> tag.
But to get the contents of this file, were using jquery ajax.
Does anybody know how I get make the <marquee> work from the ajax?
In Chrome its fine, but if its in Firefox, the text displays, just not in a marquee.
View 2 Replies
View Related
Jun 18, 2009
I've developed a plugin for a simple slide show. and here is the code [URL] The problem is when I mouse over the pic, the console error logs: "slideSwitch is not defined" The same error would still happen if I define function slideSwitch(){} and call
setInterval("slideSwitch()", 1000);
View 2 Replies
View Related
Jan 17, 2011
In the code below there is a set interval. The interval works perfect. There also is a clearInterval, this one works aswell. When I click on the button with the ID sluitinfonew the interval should be set again, this also works. But offcourse the clearInterval doesn't work anymore because the var is within the function(i'm not sure). Is there a better way to do this? I can't get it to work.[code]
View 1 Replies
View Related
Oct 8, 2011
i m in trouble i made some piece of code , i've used setInterval() like this way
[Code]...
View 14 Replies
View Related
Apr 14, 2009
I'm creating an AJAX page that is built using a PHP Class, ie the php looks a bit like this: PHP Code:
$wp_page->addjs('../var/savepolicies.js')
$wp_parser->page = "userpolicywindow.php";
$wp_parser->addlink("Home","../index.php","");
$wp_parser->addlink("Logout","javascript:logout();","");
$wp_parser->getpageid("501");
[Code]...
within this page that has been created, there is an AJAX tree folder which calls another page to be loaded into a DIV by AJAX again. Code:
[Code]...
I don't know why it doesn't work because the page has been loaded with the JS file, but as soon as the link is added afterwards it doesn't work. I take it this is because it doesn't know where to find the JS, but how can I overcome this?
View 4 Replies
View Related
