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  • html & javascript: How to store data referring to html elements

    - by Dan
    Hello, I'm working on a web application that uses ajax to communicate to the server. My specific situation is the following: I have a list of users lined out in the html page. On each of these users i can do the following: change their 'status' or 'remove' them from the account. What's a good practice for storing information in the page about the following: the user id the current status of the user P.S.: I'm using jQuery.

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  • Chnaging Displayed Image on a Webpage Using Javascript

    - by Gavin
    Hi all, I'm having some trouble changing an image being displayed on a page by way of a dropdown menu selection. This works fine.. getting the dropdown menu to give me an alert when I make a selection. Even though the menu is embedded within a division, paragraph, and label tag, it still works. "availableImages" is the name of my menu. function imageSelect() { var index = document.getElementById("myForm").availableImages.selectedIndex; var value = document.getElementById("myForm").availableImages.options[index].value; alert("test " + value); // alert box pops up upon list item selection } However, within the same division, I am having an issue with changing the source of my image tag... Any ideas? I will provide more code if it will be helpful. Thanks! Gavin

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  • Populating form fields with comma seperated strings in unordered list onclick with jQuery/Javascript

    - by RyanP13
    Hi, I have an address lookup system which returns addresses in an unordered list like so: <p>Please select your address from the list below</p> <div id="selectAddress"> <ul> <li>HNO 412,addressLine2,addressLine8</li> <li>HNO 413,addressLine2,addressLine8</li> <li>HNO 414,addressLine2,addressLine8</li> </ul> </div> When someone clicks on an li containing the address i use the folloqing jQuery to split it and populate the following form fields. var $customerAddress = $("form#detailsForm input[name*='customerAddress']"); $("div#selectAddress ul li").click(function(){ $(this).removeClass("addressHover"); $("li.addressClick").removeClass("addressClick"); $(this).addClass("addressClick"); var $splitAddress = $(this).text().split(","); $($customerAddress).closest("tr").removeClass("hide"); $($customerAddress).each(function(){ var $inputCount = $(this).index($customerAddress); $(this).val($splitAddress[$inputCount]); }); $.cookies.set('cpqbAddressInputs', 'visible'); }); Form fields: <tr> <th> <label for="customerAddressLine1">Address&nbsp;*</label> </th> <td colspan="3"> <input type="text" name="customerAddressLine1" maxlength="40" value="" id="customerAddressLine1" class="text" /> </td> However it only seems to populate the first line of the address and not lines two and three. I could easily do this manually but i wanted to abstract it so that it could be expanded to cater for any amounts of address lines.

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  • How to detect checkbox state in Javascript IE7

    - by justinl
    I have a simple checkbox on my website. Everytime you check and uncheck it, it shows an alert as to what the state is. This works flawlessly in FF, Chrome, and IE8. However, when I run this in IE7, no matter if the check is on or off, it always alerts "off". It's like IE7 can't detect that the checkbox is checked. Does anyone have an idea of how to fix this or work around it? I basically need to toggle the visibility of some content based on a checkbox, but IE7 is being difficult. Thanks! Here is my code that I'm using: function showHideTimeDropdown() { if (document.getElementById("input_checkbox").checked == true){ alert("on"); } else{ alert("off"); } }

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  • Problem with javascript in firefox when moving google ads

    - by thomas woelfer
    hi. i have a website with google ads on it. i would like to make it load faster. thus i moved all the google scripts to the bottom of the page. i also have a placeholder at the location where the ad(s) should be displayed and other divs that (initially) get the ads. finally (in window.onload) i'm moving the ads that have just be fetched from google to their target locations. (a simple example page is here: http://www.nickles.de/temp/ads.html ) this works in ie, but it doesn't work in ff. (that is, in firefox, non-text ads show up fine, while text-ads don't. [or at least, not in a reliable way.]) any ideas what would be causing this? Thanks! -thomas woelfer

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  • javascript compare two DOM trees

    - by Paul
    I want to compare the change of a DOM node after a user event is fired on it; but I don't know on which element a user would fire, so my idea is to (1) save the DOM tree before an event and (2) compare the saved tree with the updated DOM tree when an event is fired. My question are (1) is there any better way? and (2) if there is no other way, what would be the fast algorithm to compare two DOM trees?

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  • Z-Index and javascript for rollover

    - by Raffaele
    I have a container (div) with a background image. In this div there is a menu - a horizontal list. What I need is to insert an image onMouseOver, positioning it absolutely, and showing it behind the text (of course!) AND on top of the div's background image. I also use jQuery, but I think this doesn't matter. The problem can be viewed online. Go to http://www.w3schools.com/css/tryit.asp?filename=trycss_zindex and paste the following text <html> <head> <style type="text/css"> img { top: 0; left: 0; position:absolute; z-index:-1; } #main { color: red; margin: 30px; padding: 20px; width: 700px; min-height: 400px; z-index: -2; background-image: url("http://www.google.com/logos/mother10-hp.gif"); background-repeat: no-repeat; } </style> </head> <body> <div id="main"> <h1>Z-Index question:</h1> <img src="w3css.gif" width="100" height="140" /> <p>How can we place the green pic between the text and the div#main?</p> <p>I need the green gif to appear</p> <ol> <li>On top of #main's background image</li> <li>Behind the text</li> </ol> </div> </body> </html>

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  • Javascript Msxml2.XMLHTTP terminal server access denied

    - by Jeroen
    Hi, var xmlHttpRequest = new ActiveXObject("Msxml2.XMLHTTP"); xmlHttpRequest.open("POST", "http://vat/_vti_bin/lists.asmx", false); How can I let this script work on a Terminal server? When I open it on my local pc, it works, but when I do the same thing in a browser on a Terminal server, I get Access Denied. I tried using ServerXMLHTTP, but then i get Cannot create automation object

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  • Designing a fluent Javascript interface to abstract away the asynchronous nature of AJAX

    - by Anurag
    How would I design an API to hide the asynchronous nature of AJAX and HTTP requests, or basically delay it to provide a fluid interface. To show an example from Twitter's new Anywhere API: // get @ded's first 20 statuses, filter only the tweets that // mention photography, and render each into an HTML element T.User.find('ded').timeline().first(20).filter(filterer).each(function(status) { $('div#tweets').append('<p>' + status.text + '</p>'); }); function filterer(status) { return status.text.match(/photography/); } vs this (asynchronous nature of each call is clearly visible) T.User.find('ded', function(user) { user.timeline(function(statuses) { statuses.first(20).filter(filterer).each(function(status) { $('div#tweets').append('<p>' + status.text + '</p>'); }); }); }); It finds the user, gets their tweet timeline, filters only the first 20 tweets, applies a custom filter, and ultimately uses the callback function to process each tweet. I am guessing that a well designed API like this should work like a query builder (think ORMs) where each function call builds the query (HTTP URL in this case), until it hits a looping function such as each/map/etc., the HTTP call is made and the passed in function becomes the callback. An easy development route would be to make each AJAX call synchronous, but that's probably not the best solution. I am interested in figuring out a way to make it asynchronous, and still hide the asynchronous nature of AJAX.

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  • replacing strings with regex in javascript

    - by koko
    Hi, regex is bugging me right now. I simply want to replace the range=100 in a string like var string = '...commonstringblabla&range=100&stringandsoon...'; with ...commonstringblabla&range=400&stringandsoon... I successfully matched the "range=100"-part with alert( string.match(/range=100/) ); But when I try to replace it string.replace(/range=100/, 'range=400'); nothing happens, the string still has the range=100 in it... I don't get it, please help.

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  • Google Javascript v8 - multithreading

    - by willem
    Hi guys Suppose I have the following piece of code bool run (void) { HandleScope hande_scope; Handle<String> source; Local<Script> script; Persistent<Context> context; context = Context::New(); Context::Scope context_scope(context); script = Script::Compile("var a = 1; var b = 2;"); Local<Value> result = script->Run(); if (result.IsEmpty()) return false; else return true; } Is it true that one cannot execute this code using multiple threads? It seems like HandleScope is not designed to be used in multithreaded applications. I can use the v8::Locker and v8::Unlocker methodes but that would always give me execution traces as this: t1: a = 1 t1: b = 2 t2: a = 1 t2: b = 2 I hope someone can give me a hint on getting this code multithreaded so that a possible execution trace could like this: t1: a = 1 t2: a = 1 t1: b = 2 t2: b = 2 Thanks already in advance! Willem -- EDIT -- So I guess that this question has no answer :)

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  • JSON stringify standalone function for JavaScript

    - by karlthorwald
    I know of YUI who has a JSON.stringify utility and also of JSON2 from json.org. What are other good implementations of JSON.stringify? It should also work in IE6, IE7 and not depend on a framework. If it depends on anything this should be easily included all in one file. Edit: I could easily use jquery-json, which was suggested in the comments of the accepted answer. It did what I wanted. (It depends on jquery but that was easily solved)

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  • Javascript, autoload text box while typing....

    - by user299676
    I am trying to do this but keep on failing. I have a text box. I have also an array of cities, and i want, while typing to display the cities that the user should be able to select. Like if the user is typing : Mu the drop down should display Mumbai \n MuMu ... etc Like the Tags below is doing ! Does someone have any ideas in how this can be accomplished ?

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  • Use VIM omnicomplete for javascript with ctags

    - by Gramic
    I am using vim/gvim for 4 months already and now I found a way to use it's strengths. My tags file is generated very well and here is a simple row in it. my.namespace.classname /path/to/file.js /^my.namespace.classname = function(first_arg,$/;" f Here is an example what i need to omnicomplete: my.namespace.cla <- omnicomplete list with all classnames in the my.namespace The above is the key to my problem, because it looks like omnicomplete searches only namespace without including "my." in front of it. So i see other element in the omnicomplete list and not my classname at all. However, if i type :tag my.namespace.classname for example gvim opens the correct file at the correct position. What is wrong and how can I make it work?

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  • javascript removeChild() and appendChild() VS display=none and display=block|inline

    - by Kucebe
    I'm developing a web application that shows some controls and descriptions dinamically (I don't want to use jQuery or other libraries). At this moment i make appear and disappear controls using: element.setAttribute("style", "inline"); and element.setAttribute("style", "none"); but i'm thinking about using: element.appendChild(childRef); and element.removeChild(childRef); So, which one is the best solution in terms of system speed and elegance of the code? (and of course, are there better solution?)

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  • Can I copy/clone a function in JavaScript?

    - by Craig Stuntz
    I'm using jQuery with the validators plugin. I would like to replace the "required" validator with one of my own. This is easy: jQuery.validator.addMethod("required", function(value, element, param) { return myRequired(value, element, param); }, jQuery.validator.messages.required); So far, so good. This works just fine. But what I really want to do is call my function in some cases, and the default validator for the rest. Unfortunately, this turns out to be recursive: jQuery.validator.addMethod("required", function(value, element, param) { // handle comboboxes with empty guids if (someTest(element)) { return myRequired(value, element, param); } return jQuery.validator.methods.required(value, element, param); }, jQuery.validator.messages.required); I looked at the source code for the validators, and the default implementation of "required" is defined as an anonymous method at jQuery.validator.messages.required. So there is no other (non-anonymous) reference to the function that I can use. Storing a reference to the function externally before calling addMethod and calling the default validator via that reference makes no difference. What I really need to do is to be able to copy the default required validator function by value instead of by reference. But after quite a bit of searching, I can't figure out how to do that. Is it possible? If it's impossible, then I can copy the source for the original function. But that creates a maintenance problem, and I would rather not do that unless there is no "better way."

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  • Know if a variable is a native object in javascript

    - by mck89
    Hi, is there a way to know if a variable passed into a function is a native object? I mean, i have a function that requires only native objects as arguments, for every other type of variable it throws an error. So: func(Array); //works func(String); //works func(Date); //works func(Object); //works ... func([]); //Throwr error func({}); //Throws error I want to know if there's a way to distinguish between native objects and everything else.

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