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jQuery $.post & $.append & IE6

- by Jim

I'm having a weird problem with jQuery and IE6. Script works on IE7+ and with all other browsers I have tried it. I can't post the full script, but what it does is this: $.post("file.php",{'foo':'bar'},function(data){ $('#target').append(data) }) When I run the code in IE6, #target just shows ? and a white char with a hole in the middle. I have no idea what this second char is. My initial thought was that this was some sort of content-type problem because the file.php just echoes answer without any header information. I added Content-type: text/html with header() but didn't help. Any suggestions?

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Common causes of slow performing jQuery and how to optimize the code?

- by Polaris878

Hello, This might be a bit of a vague or general question, but I figure it might be able to serve as a good resource for other jQuery-ers. I'm interested in common causes of slow running jQuery and how to optimize these cases. We have a good amount of jQuery/JavaScript performing actions on our page... and performance can really suffer with a large number off elements. What are some obvious performance pitfalls you know of with jQuery? What are some general optimizations a jQuery-er can do to squeeze every last bit of performance out of his/her scripts? One example: a developer may use a selector to access an element that is slower than some other way. Thanks

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Jquery Click in li

- by cKendrick

I have my html set up like this: <li> Header <button>Edit</button> </li> And I was wondering if there is a way so that you can click on the li and have one action happen and click on the button and have another action happen. Right now if I have a jquery click element on the li it gets fired when you hit the button to. Is there a way to make this separate without changing the html structure?

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jQuery wildcard selection

- by Yuval A

Suppose you have some <div>s: <div id="div_num1"></div> <div id="div_num2"></div> <div id="div_num3"></div> You can select all those divs by choosing $("div[id^='div_num']"). How can you buld a function that references the number succeeding the prefix? For example, a function which will alert the number 3 for "div_num3". More generally, how can you use full-blown regex in jQuery selectors?

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Changing multiple objects with a new class name using Jquery

- by liquilife

I'd like to click on a trigger and show a specific image. There are multiple triggers which would show a specific image related to it within a set. There are 4 sets The challenge for me is toggling the other images to hide only in this 'set' when one of these triggers are clicked, as there can only be one image showing at a time in each set. Here is the HTML I've put together thus far:  <div class="materials"> <a href="javascript:;" id="shirtgrey"><img src="/grey_shirt.png" height="122" width="122" /></a> <a href="javascript:;" id="shirtred"><img src="red_shirt.png" height="122" width="122" /></a> <a href="javascript:;" id="shirtblue"><img src="hblue_shirt.png" height="122" width="122" /></a> <a href="javascript:;" id="shirtgreen"><img src="green_shirt.png" height="122" width="122" /></a> </div> <div class="collars"> <a href="javascript:;" id="collargrey"><img src="grey_collar.png" height="122" width="122" /></a> <a href="javascript:;" id="collarred"><img src="red_collar.png" height="122" width="122" /></a> <a href="javascript:;" id="collarblue"><img src="blue_collar.png" height="122" width="122" /></a> <a href="javascript:;" id="collargreen"><img src="green_collar.png" height="122" width="122" /></a> </div> <div class="cuffs"> <a href="javascript:;" id="cuffgrey"><img src="grey_cuff.png" height="122" width="122" /></a> <a href="javascript:;" id="cuffred"><img src="red_cuff.png" height="122" width="122" /></a> <a href="javascript:;" id="cuffblue"><img src="blue_cuff.png" height="122" width="122" /></a> <a href="javascript:;" id="cuffgreen"><img src="/green_cuff.png" height="122" width="122" /></a> </div> <div class="pockets"> <a href="javascript:;" id="pocketgrey"><img src="grey_pocket.png" height="122" width="122" /></a> <a href="javascript:;" id="pocketred"><img src=".png" height="122" width="122" /></a> <a href="javascript:;" id="pocketblue"><img src="blue_pocket.png" height="122" width="122" /></a> <a href="javascript:;" id="pocketgreen"><img src="green_pocket.png" height="122" width="122" /></a> </div>  <div class="selectionimg"> <div class="selectShirt"> <img src="grey_shirt.png" height="250" width="250" class="selectShirtGrey show" /> <img src="red_shirt.png" height="250" width="250" class="selectShirtRed hide" /> <img src="blue_shirt.png" height="250" width="250" class="selectShirtBlue hide" /> <img src="green_shirt.png" height="250" width="250" class="selectShirtGreen hide" /> </div> <div class="selectCollar"> <img src="grey_collar.png" height="250" width="250" class="selectCollarGrey show" /> <img src="red_collar.png" height="250" width="250" class="selectCollarRed hide" /> <img src="blue_collar.png" height="250" width="250" class="selectCollarBlue hide" /> <img src="green_collar.png" height="250" width="250" class="selectCollarGreen hide" /> </div> <div class="selectCuff"> <img src="grey_cuff.png" height="250" width="250" class="selectCuffGrey show" /> <img src="red_cuff.png" height="250" width="250" class="selectCuffRed hide" /> <img src="blue_cuff.png" height="250" width="250" class="selectCuffBlue hide" /> <img src="green_cuff.png" height="250" width="250" class="selectCuffGreen hide" /> </div> <div class="selectPocket"> <img src="grey_pocket.png" height="250" width="250" class="selectPocketGrey show" /> <img src="hred_pocket.png" height="250" width="250" class="selectPocketRed hide" /> <img src="blue_pocket.png" height="250" width="250" class="selectPocketBlue hide" /> <img src="green_pocket.png" height="250" width="250" class="selectPocketGreen hide" /> </div> </div> How can jQuery be used to change a class of an image to "show" and ensure that all other images in that same div are set to a class of "hide"? First time posting here. I'm very efficient with HTML and CSS and have a basic understanding of jQuery. I'm learning and this just seems a little bit beyond my abilities at the moment. I hope this all makes sense. Thanks for any help.

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Toggle jQuery-UI widgets

- by cf_PhillipSenn

I have: <div class="ui-widget"> <div class="ui-widget-header"> <span class="ui-icon ui-icon-circle-triangle-n">My Menu</span> </div> <ul class="ui-widget-content"> <li>Menu Item 1</li> <li>Menu Item 2</li> <li>Menu Item 3</li> </ul> </div> My jQuery is: $('.ui-widget-header').click(function() { $('.ui-widget-header+ul').toggle('slow'); }); Q: How do I toggle classes between ui-icon-circle-triangle-n and ui-icon-circle-triangle-s as the user clicks on .ui-widget-header?

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Mysql Query is not working in edited jTable code, why?

- by Furkan Kadioglu

I'm using this example: www.jtable.org I've downloaded the jTable PHP version. I then edited the script. The jTable simple version is working, but my edited version isn't. I can create a list, but I can't add a row; this code is causing problems. However, PHP doesn't display any error messages. else if($_GET["action"] == "create") { //Insert record into database $result = mysql_query("INSERT INTO veriler(bolge, sehir, firma, adres, tel, web) VALUES('" . $_POST["bolge"] . "', '" . $_POST["sehir"] . "', '" . $_POST["firma"] . "', '" . $_POST["adres"] . "', '" . $_POST["tel"] . "', '" . $_POST["web"] . "'"); //Get last inserted record (to return to jTable) $result = mysql_query("SELECT * FROM veriler WHERE id = LAST_INSERT_ID();"); $row = mysql_fetch_array($result); //Return result to jTable $jTableResult = array(); $jTableResult['Result'] = "OK"; $jTableResult['Record'] = $row; print json_encode($jTableResult); } What is the problem?

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jQuery - getting the id of the item selected

- by John Leonard

I have a basic jQuery selector question. Let's say I'm parsing JSON and generating a row of data for each item in my result set. On each item row, I want an action button. What is the best practice to script that button so its click action can reference the data specific to that row? Starting with the block below, how do I generate a 'Click Me' button that when clicked will alert with its json data? $.getJSON(url,params,function(json){ if(json.items){ $.each(json.items, function(i, n){ var item = json.items[i];

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Jquery remove and add back click event

- by London

Is it possible to remove than add back click event to specific element? i.e I have a $("#elem").click(function{//some behaviour});, $(".elem").click(function{//some behaviour});(there are more than 1 element) while my other function getJson is executing I'd like to remove the click event from the #elem, and add it again onsuccess from getJson function, but preserve both mouseenter and mouseleave events the whole time? Or maybe create overlay to prevent clicking like in modal windows? is that better idea? edit : I've seen some really good answers, but there is one detail that I omitted not on purpose. There are more than one element, and I call the click function on the className not on elementId as I stated in the original question

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JQuery JEditable stay in edit mode on error

- by Justin

I'm successfully using jeditable to submit via a function using jQuery.ajax and the async : false option , but am having an issue aborting if an error is returned. How can I get the edit box to stay activated and / or revert back to the original value if there are errors? I'm returning http status codes. so something like async : false .ajax submit here... if (xhr.status == 200) { return value; else { alert ('returned error'); // keep edit box activated but available for another try, or revert back to original value } I tried not returning a value from the function, which keeps the edit box activated and ready for another submit, but then the ESC key doesn't work anymore and if I click outside the edit area, the edit box stays. Thanks in advance!

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Attaching a jquery function to some textboxes

- by diver-d

I am a newbie to jquery and need a little help. I have created the below function which does what I want it to however when I select a textbox every other textbox are automatically selected. How do I change it and pass a parameter from the textbox so only the selected textboxes css changes on focus and blur? <script language="javascript" type="text/javascript"> $(function () { $('.myTextBox').focus(function () { $('.box.textbox').addClass("active"); }).blur(function () { $('.box.textbox').removeClass("active"); }); }); </script>

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JQuery Ajax Always Fires Error Function

- by CccTrash

AddFileToDB.ashx: public void ProcessRequest (HttpContext context) { context.Response.ContentType = "application/json"; context.Response.Write("{ \"filename\": \"test.jpg\" }"); } JQuery: $.ajax({ url: 'AddFileToDB.ashx', dataType: 'json', success: function(data) { alert(data.filename); }, error: function(data) { alert('error'); }, }); This always results in the error function being called. I don't know why? Thoughts? AddFileToDB.ashx gets fired, but success never gets run.

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jQuery blockUI and AJAX POST

- by oompahloompah

I am using jQuery BlockUI in a project. For a particular user action, I want to block the UI, and then POST data to the server. When the timeout event occurs OR the server returns, I want to unblock the page. I can't seem to implement this behaviour. This is what I have so far (not working) $(document).ready(function(){ $('#test').click(function(event){ $.blockUI({ message: $('#syntax-chk') }); $.ajax({ type: 'POST', url: 'www.example.com', data: somedata, dataType: "json" }); setTimeout(function() { $.unblockUI({ onUnblock: function(){ alert('onUnblock'); } }); }, 2000); }); can anyone spot what I may be doing wrong?

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JQuery Validation Plugin not working when used on page that includes another page via AJAX

- by droidy

We have a long page that contains a bunch of different form elements. One part of the form is called remotely via AJAX and is populated in an empty div. This is the part which JQuery Validation plugin is not working correctly on. We have class="required" on the elements on this page, but they do not show up as required. I'm guessing it's because the Validation plugin is looking for class="required" on our main page, and since the content from the AJAX page is put into the empty div behind the scenes, it's not detected the required fields. Any help is greatly appreciated.

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jquery mouseleave issue when moving too slow

- by David

Hello. I am using the jQuery mouseenter and mouseleave events to slide a div down and up. Everything works well except for the mouseleave which doesn't appear to fire ONLY if the mouse of moved off of the div quite slowly. If i move the mouse at a relatively normal or fast speed then it works as expected. Can anyone explain this or provide any info on how to get around this? Code: $(document).ready(function() { $('header').mouseenter(function() { $(this).stop().animate({'top' : '25px'}, 500, function() { $(this).delay(600).animate({'top' : '-50px'}, 500); }); }). mouseleave(function(e) { var position = $(this).position(); if (e.pageY > position.top + $(this).height()) { $(this).stop().delay(600).animate({'top' : '-75px'}, 500) ; } }); });

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Twitter Bootstrap Ajax call error in dialog2.js

- by naveen kumar

We are using Twitter Bootstrap for my application. I have situation where I have to pull the data from server and show it to popup/model div. We are using dialog2.js for it but it does work. We not want to use .load functionality as we are not using any single url call. We want it to do with “URL” by ajax call and response send back to popup/model content area. We have tried following $('#proposalInDialog2').click(function(event){ var url="abc.do" $('<div/>').dialog2({title: "Goals-Based Proposal", content: url}); }); Please help us to to find out this, thanks

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posting to aweber with jQuery

- by wcpro

Im trying to post to aweber using just jquery. I have a method call like this $(function () { $('#submit').click(function () { $.post('http://www.aweber.com/scripts/addlead.pl', { meta_web_form_id: '12345', meta_split_id: '', listname: 'some_list', redirect: '', meta_redirect_onlist: '', meta_adtracking: 'my_Web_Form', meta_message: '1', meta_required: 'name,email', meta_forward_vars: '', meta_tooltip: '', email : '[email protected]', name : 'tester testing' }, function (data) { alert('data load: ' + data); }); }); }); it is supposed to take the result of the post and alert it in a box. when i try to do it manually with forms it works but redirects me to a 'form-sorry.htm' page, which is fine, just wondering if there was a way to display the end result of the post. Im guessing hte addlead.pl is just a posting page with no response.

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Handling JSON and HTML templates in jQuery

- by Toby Hede

I have an ajax-enabled site that presents a lot of dynamic content by interpolating JSON values with HTML. This all works fine. BUT it means I have significant amounts of HTML all through my JavaScript. For example: var template = "<div>Foo: {bar}</div><div>Blah: {vtha}</div>"; template.interpolate({bar:"bar",blah:"vtha"}); I have cut this down a fair bit - some of my dynamic elements have quite a lot of HTML and a lot going on. I am using jQuery and I am building on Rails, so if there is something smart in either framework, that would be great. For reference, the String interpolation function used above is: String.prototype.interpolate = function (o) { return this.replace(/{([^{}]*)}/g, function (a, b) { var r = o[b]; return typeof r === 'string' || typeof r === 'number' ? r : a; } ); };

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jQuery Supersized Plugin callback when slideshow finishd

- by Nic Hubbard

I am using the Supersized jQuery plugin which makes images fullscreen and also implements a slideshow. Currently, this plugin does not have a callback for when the slideshow is finished, rather, it just continually repeats. Is there a way that I could trigger a function after the last slide is shown? Currently, I have it working to trigger a function when the last slide STARTS to be shown, as I have a setInterval which checks for the "last" class on the slideshow images. But, this runs the function when that last slide starts, not when it is finished. Does anyone have ideas on how I could accomplish this?

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Dialog Box Not Working properly

- by user1360694

function showPopup(){ var popup = $('<div>').dialog(); popup.html('<div id="mydiv"></div>'); for (var i=1; i<5; i++) setContent($('#mydiv')); popup.dialog("option", "buttons", { "Add": function(){ //code to add $(this).dialog('close'); $(this).dialog('destroy'); }, "Cancel": function(){ //code to add $(this).dialog('close'); $(this).dialog('destroy'); }, }); } function setContent(container){ container.append('<p>sadfsdfsdfsdfdsf</p>'); } On clicking a "ADD BUTTON" the showPopup function is called which displays a dialog box setting its content from the setContent method. On the first click the content is displayed properly while on further clicks(after the previous dialog is closed) no content is displayed. Can anyone help with this.

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jQuery access each matched element from '.find' by an index

- by GHarping

Using jQuery's .find() method to return a set of elements, I am trying to access items in the returned set by their order in that set. For example, a table with two rows and in each row a select box and two text input fields, accessed with the following: $('table#tbl').find('tr.row').each(function(i) { }); To get the first element I would have thought I could use $('table#tbl').find('tr.row').each(function(i) { alert( $(this).find(':input').get(1).val() ); }); And variations of the above, but apparently this doesn't work. Could anyone suggest the correct method to access item x of n elements returned?

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Select next element in the page source using jQuery

- by Travis

I have an arbitrarily deep list of the form: <ul> <li></li> <li> <ul> <li></li> </ul> </li> </ul> I am trying to build a function "nextElement" that returns a jQuery selector. The first time the function is called, it returns the first li in the list. The second time it is called, it returns the next li in the page. Etc. I'd like this function to pay no attention to siblings, parents, children, etc. All I care about is that everytime it is called, the next li in the source gets chosen. Any suggestions on how to go about approaching this? Thanks

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Pass codeigniter translation array to jQuery Function

- by grolle

Hi, I’ve a problem by passing an array to a jQuery function. Some code: // in the language file $lang['daynames'] = array('So','Mo','Di','Mi','Do','Fr','Sa'); //In the view var config = { basePath : '' }; // THIS WORKS GREAT!!! var days = new array('lang-line('daynames')); ?'); //in the js-File $(function() { $("#datepicker").datepicker({ dateFormat : 'dd.mm.yy', showWeek : true, firstDay : 1, weekHeader : 'KW', dayNamesMin : days, monthNames : ['Januar','Februar','März','April', 'Mai','Juni','Juli','August','September', 'Oktober','November','Dezember'], onSelect : function(dateText,inst){ } }); }); If I do lang-line(‘daynames’)); ? in the view everything looks fine, so what is wrong here? Thanks and best regards ...

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JQuery Accordion - bottom-up in stead of top-down

- by Tim Geerts

Hi there, I have a question about the accordion plugin for jQuery. Basically, I've got it to work on my site nicely, there's just one thing that I'd have liked it to do and that is bottom-up opening in stead of top-down. What I mean by that is that my 3 buttons just stand in the vertical menu (div) in the bottom. And when you click it, they'll slide open but upwards, not downwards. Is there a way to achieve this easily? I've gone through the documentation, but can't find any native support for it, so I was wondering if it was possible to do it in the javascript of the plugin itself. Thanks in advance.

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jQuery fadeTo not working in IE8

- by Lynda

I have a div fading in using fadeTo. It works great in Firefox and IE9. It does not work in IE8. Here is my code: JS: var $j = jQuery.noConflict(); window.onload = function(){ $j('#fadein').fadeTo(6000, 1, function() { }); }; HTML <div class="img-center" id="fadein" style="opacity:0;"> <img src="src.jpg" alt="Text" class="feature-image" /> </div> How do I get this to work in IE8? I do not mind changing from fadeTo to fadeIn or some other method of fading in a div as long as it works in IE8.

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