Get JS Pushed To User From Server?
Oct 17, 2011
So, I need a way to push JavaScript commands from the server over to the user. The way this currently works is by using iframes/php. I have an iframe with it's src set to "loader.html". Then I have a "control panel" with multiple links to php files. Every php file here writes JavaScript code to loader.html, so for example alert.php writes <script>alert("hello");</script> to loader.html and the user is alerted.
However, this method is rather rudimentary and I was wondering if there was a more efficient way of doing it.
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Oct 14, 2006
I have an web application (PHP backend) where I want to initiate multiple requests to the same server (to different php functions/files) and asynchronously update the response on the page (the call back function is same for all the requests).
What is the best solution for this ? Is it better to
a) call multiple server calls from the java script file? if so Do we create multiple http objects ? can someone point me to the few examples ?
b) call one Php service and have the php fork the multiple requests on the server side. I am not sure if this can be done multiple requests be done asynchronously on the server side ? and if so how to dynamically update teh resultant page as each request finishes?
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Apr 21, 2009
I've got a little jquery bit to add some behavior to linked mp3s. You see this here: [URL]. Basically, jquery adds a speak icon and a player when the link is clicked, and the link title flies off and fades to the right:
[code] jQuery('a[href$=mp3]:not(.amplink)')
.wrap('<div class="mp3_span">' + '</div>')
.addClass("mp3_title")
.attr("title", "Click to Play")
.before('<img src="' + anarchy_url + '/images/114.png"
title="Click to listen" class="speaker" style="margin:' + mp3imgmargin + '"/>')
.each(function awesome() { .....
This works more or less how it would like it in all browsers except ie7. There the block that is created for the expanding text pushes everything down, even though the link are given a position:absolute declaration.
The pertinent css:
[code]
div.mp3_span {margin-left:90px; width:600px; position:relative;
display: inline !important; height:1.5em !important;}
a.mp3_title {font: oblique small-caps normal 1em/1.5em Arial, sans-
serif; display: inline !important; position: absolute !important;
cursor: pointer; width:500px; outline: none;}a.mp3_title:hover
{cursor: pointer; outline: none;}
a.mp3_title:active {outline: none;-moz-outline-style: none;}
img.speaker {border:none !important ;cursor:pointer; position:static !
important; vertical-align:top; }[/code]
I can't seem to do no matter what css I apply, and, of course, I' rather not hack the jquery script. So again - how can I keep the text animation without having the following elements getting pushed down?
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Feb 14, 2009
I'm trying to do the following thing. Create a dynamic selectboxA0 when a button is pushed. Then, when a value is selected in this selectboxA0, there will be dynamically generated another selectboxB0 with content which is different for each option of the first selectboxA0. When the button is pressed another time SelectboxA1 is generated (which will in his turn generate SelecboxB1).
The code I use is the following:
function addProduct(){
var url = "includes/php/catalog/loadcategories.php";
$.post(url,
function(data){
$('<tr id="catalogid'+invoiceProducts+'"><td>Product-categorie</td><td><select name="category'+invoiceProducts+'" id ="category'+invoiceProducts+'">'+data+'</select></td></tr>').appendTo('#invoiceTable');
$("#category"+invoiceProducts).change(
function(){
var currentCatalogField = $("#category"+invoiceProducts).attr("name");
if($('#product'+invoiceProducts).length > 0){
var currentProduct = $('#product'+invoiceProducts);
var category = $('#category'+invoiceProducts).val();
var selectbox = true;
productSelect(category, selectbox);
}else{
var category = $('#category'+invoiceProducts).val();
var selectbox = false;
productSelect(category, selectbox);
}});}, "html");
invoiceProducts++;
}
The problem I have is that everything revolves around a counter (var invoiceProducts). Therefor when I select a value in SelectboxA0, the value of SelectboxB1 will change (instead of B0). Any way to solve this thing, by for example making the object pass itself when it calls the onchange function so I can get the number out of the name/id attribute or something. A
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Feb 13, 2011
I know how to randomize an array but how do I randomize the array below and keep the questions and answers together.
Code:
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Oct 3, 2009
I'm trying to add the lightbox plugin to a page and when the image is clicked the overlay and corresponding image are pushed to the bottom of the page wit the image below the overlay. The gallery div is nested inside a couple other divs and when the gallery images are clicked the overlay and lighbox divs are pushed to the bottom of the page instead of being absolutely positioned over the existing content. If anyone has some ideas on how to fix this I would like to hear them.
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Aug 30, 2004
I have a page where I use <DIV> to control the visibility a text input area. The text input is made visible only if the Other radio button is selected. That all works fine.
The problem I'm having is when I press the forms Reset )<input type=reset>) button, the visibility of the text area is not restored to the state it was at when the page first loaded so I end up with the text area being displayed even though the Other radio button in no longer selected (reset did clear it).
I thought I could solve this by using a <FORM onReset="forcehide()"> event handler but I can't figure out how to get the object id of the div. The div is defined as follows: Code:
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Jul 23, 2005
I am trying to create a web page in which the contents of one selection list
depends upon which element in another selection list is chosen, but where
the information to populate the first selection list comves from an SQL
database on the web server.
There are a couple of these situations in my application but, for example,
the first list might be a list of counties, and the second list a list of
states/provinces. Obviously the names of counties depend upon which
state/province is chosen, but there are too many possibilities to be able to
embed them within the web page itself. So when the user selects a
state/province I need to go to the server to ask for the list of counties.
I have seen a number of posts that sort of address this issue. For example
it is suggested to use <script src="a URL"/> to ask the server side code to
send up data of type "text/javascript". However the examples do not seem to
address how the server side code would know which state/province the user
had selected.
If there is a web site that addresses this sort of thing, I would appreciate
any pointers.
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Oct 2, 2010
I have the following JavaScript (see below). The script requests an XML file from the server and displays it on the page.
The script works fine when the requested XML file is stored on the same server as the script.
The problem is when I try requesting an XML file from an external server such as the National Weather Service. I get an error. If I take the XML file from the National Weather Service and save it to my server it works. Why can't I use my script to request XML files stored on external servers?
Javascript Code
window.onload = initAll;
var xhr = false;
function initAll() {
document.getElementById("makeTextRequest").onclick = getNewFile;
[Code]....
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Mar 11, 2010
I'm trying to write a script that will be loaded from one server into a website on another server. This script is trying to talk (ajax) to the server that it comes from but I'm getting "Access Denied" errors. I'm well aware that cross-domain calls are not allowed for security reasons so my question is how does Google Analytics work because essentially thats what I'm trying to accomplish. I can embed a Google Analytics script into my website and it'll gather data and send it back to Google.
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Apr 19, 2010
I'd been looking for some way to get server date/time without using any server side script (such as ASP, PHP, etc).
I found this and it worked just excellent for me! I just want to share it because it wasn't easy to find.
I created a js document with code:
Code:
Now, I can use this js within a html like this:
HTML Code:
You may change your machine date/time and check both dates.
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Feb 10, 2010
I would like to open an html file locally (not fetch it from a server) and somehow use javascript to fetch the relative resources from the server. One solution would be to convert all of the relative links to absolute links. I can convert the html source file anyway I wish, but ideally I would like to modify the html source as little as possible, for example insert a function that modifies the result of the src attribute. How would I go about this? Is there any trick I can use to define where the relative home is? Am I going to get into any scripting security gotchas?
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Dec 31, 2006
I am creating an XML document on my page with javascript. My question
is, is it possible to save that xml file on the server (I have write
permissions) only using javascript, ie no server code? This task would
be trivial using server code, but I was wondering if I can do it all
with client code and post backs? Well, any input?
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Dec 7, 2010
I already have a server connected to clients, clients send msgs and it echoes back to all of them and now i want when a client sends a msg it echoes on his server and the other server too .. so when any of the clients on any of the servers sends a msg it is broadcasted all over the servers to all clients
[Code]...
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Jun 24, 2010
In ASP.Net, I am trying to create a WebControl. In this control, I have RenderControl method overridden with my html controls.
protected override void RenderContents(HtmlTextWriter output)
{
output.Write(@"<table><tr><td>");
[code]....
How can I make the button call the click event so that the server side method btnExecute_Click() can be called? Also, this button calls a javascript function before server side even.
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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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Oct 14, 2011
is it possible to track whether user is typing in the browser's address bar or aside google search box ( which appears in most of the browsers besides address bar)? if yes, I would like to know HOW? references are welcome.
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Nov 28, 2010
I have to come up with a user authenication page the logs the user in and also gives them access to do the right things. I have attached the code and the access file and have got started on a few things.I first need to create a login page with the fields username and password have that check the access database and then proceed it to a page to do the following depending on the user access. For The Login button to even be enabled the username and password must have a value in it. I have no idea how to do that
Add A User [No duplicate Users]
Modify A User
Delete A User
[code]....
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Dec 2, 2005
I have read all posts about how to detect that url have changed to new
page and trigger the event handler then eg.
function aidLogout(evt) {
if(evt) {
/* maybe via analyse of evt object i can detect the close of the
browser window */
}
if(window.event) {
/* maybe via analyse of window.event object i can detect the close of
the browser window */
}
var i = new Image();
i.src = "aidlogout.asp?uid=1562&SessionID=ABCDEFGHIJKLMNOP"
} /* assuming that aidlogout.asp will return nothing or empty image */
window.unload = aidLogout;
/* or via
if(window.addEventListener) {
window.addEventListener("unload", aidLogout, false);
} else
if(window.attachEvent) {
window.attachEvent("unload", aidLogout);
}
PS i know about super Gecko onclose event which fires when browser
window is closed, but i could not find such method in IE.
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Feb 22, 2011
How to show/hide several paragraphs when the user clicks next and then the reverse when the user clicks prev.
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Feb 15, 2011
Imagine a wife has signed on to a web site in a browser tab. She does not sign off and walks away to do something else. Her husband sits at the computer and seeing her signed on, opens a new tab and tries to sign on to the same site. I need to automatically sign the wife off when this happens so as to avoid confusion later regarding which session is active.
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Feb 24, 2009
I need help with user input. I need to restrict the user to input age greater than 17 and weight restricted to the range of 80-300.
My code is not working:
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Nov 24, 2010
I have an app which preloads images from a folder called 'myimages'; I load the images using src='myimages/picture.jpg'. The 'myimages' folder is in the same folder as my web pages.My domain on the server is villaswfrance.com and I have copied the 'myimages' folder to the server at the same level as the web pages which are directly under the villaswfrance folder. When the app runs it fails when trying to load /myimages/picture.jpg. Does the leading / take me to the web pages or to the villaswfrance folder. If the latter I understand why it fails - if the former I do not understand.
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Jul 23, 2005
What i want to do is that this function post data to the server (ASP) and
the server will response with 'OK' My question is how can i send data clientside from Javascript to the server ? (navigate ? with url ?)
and check the returned data in the same function ?
function ShowData(TxtArt)
{
alert(TxtArt + ' : ' + parent.frames.Bottom.TxtUsrName.value + ' - ' +
parent.frames.Bottom.TxtRemarque.value); // testing purpose
// post the data to the server. ex .. myURL.asp?userID=1000&Art=ART1201
// fetch the data from the server. to verify if the 'OK' is recieved ->
the server will response with 'OK'
// if 'ok' -> i will update clientside an frame (ex. contents of
shoppingbasket)
}
Any idea's ?
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Mar 30, 2006
I know it's possible to retrieve the IP address of a visitor's computer. However, I need to figure out a way to get the IP address of the server where the files are placed. Here's a description of my issue:
My application, along with some HTML Electronic manuals, are loaded onto a server in an electronic classroom. In order to get to any of these items (manuals or app), the students access the server where an index page is located in the D drive and click a link to get to any of them.
The problem is that these manuals are loaded into the D: drive while my application, because it uses ASP, is saved in the C:inetpubwwwroot folder.
The other issue is that this application will not be placed in just one classroom. Each classroom will have its own server with any number of computers accessing it. Since I don't know how each of the servers will be set up, I need to get the IP address so I can access the wwwroot folder.
What I need to do is figure out, using some non-server-side language, what the IP address or computer name of the server is so that I can access the appropriate folder in the wwwroot folder.
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Sep 19, 2005
Is it possible to get the web - server name through Javascript? If yes, how?
My code goes as follows. I get an error after executing this
<html>
<head>
<title>Untitled</title>
<script>
function disp()
{
str1 = location.host();
alert(str1);
}
</script>
</head>
<body>
<cfoutput>
<a href="##" onclick="disp();">Click me</a>
</cfoutput>
<cfabort>
</body>
</html>
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