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  • Techniques for Visualizing Data

    - by Rob Wilkerson
    I'm looking into providing several methods of visualizing a large volume of data. This may include, but will not be limited to, simple graphing. The techniques I'm exploring will involve shapes, text and lines. It will also involve interaction with elements (hiding, focusing, etc.) and animation (shifting, dragging, systematic reorganizing, etc.) of those elements. SVG or Canvas seem like the obvious choices (in conjunction with a JS library--probably jQuery), but the lack of cross-browser availability is a concern. I'd prefer to avoid Flash/Flex, but right now it's the only rock solid, cross-browser technology I've found if support for IE7/8 is a requirement. Does anyone have any other suggestions or any additional information that would make a technology I've listed seem even more appealing? Thanks.

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  • poblems with jquery code

    - by Michael
    Another jquery issue... I have tried this several times using "class" and "id" elements and I can not get it right. I am hoping the brains on stackoverflow can help! The problem that I am having is when I open the page all elments are closed. When I click on one link all links open. I believe it closes correctly the problem is that when I open the first link all items open. <!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> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Bid Items</title> <link href="bid.css" rel="stylesheet" type="text/css" /> <script src="jquerry/js/jquery.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function(){ $('#showhideconent').hide(); $('a').click(function(){ $('#showhideconent').show('slow'); }); $('a#close').click(function(){ $('#showhideconent').hide('slow'); }) }); $(document).ready(function(){ $('#showhideconent2').hide(); $('a').click(function(){ $('#showhideconent2').show('slow'); }); $('a#close2').click(function(){ $('#showhideconent2').hide('slow'); }) }); $(document).ready(function(){ $('#showhideconent3').hide(); $('a').click(function(){ $('#showhideconent3').show('slow'); }); $('a#close3').click(function(){ $('#showhideconent3').hide('slow'); }) }); $(document).ready(function(){ $('#showhideconent4').hide(); $('a').click(function(){ $('#showhideconent4').show('slow'); }); $('a#close4').click(function(){ $('#showhideconent4').hide('slow'); }) }); </script> </head> <body class="oneColElsCtr" onload="MM_preloadImages('Assignment4b.jpg')"> <div id="container"> <div id="mainContent"> <h1>Bid Page</h1> <h1>Coke Memorbila</h1> <a href="#" id="click">Amber Bottle 1914</a> <div id="box" align="center"> <div id="showhideconent"> <p><a href="coke/Amber1914.shtml"><img src="amber1914.jpg" width="200" height="200" alt="Amber Coke" /></a></p> <p><a href="#" id="close">Close</a> </p> </div> </div> <a href="#" id="click">Amber Bottle 1915</a> <div id="box" align="center"> <div id="showhideconent2"> <p><a href="coke/Amber1915.shtml"><img src="coke/Amber1914.shtml" width="200" height="200" alt="Amber Bottle 1915" /></a></p> <p><a href="#" id="close2">Close</a> </p> </div> </div> <a href="#" id="click">Green 1929</a> <div id="box" align="center"> <div id="showhideconent3"> <p><a href="coke/green1929.shtml"><img src="green1929.jpg" width="200" height="200" alt="Green 1929" /></a></p> <p><a href="#" id="close3">Close</a> </p> </div> </div> <a href="#" id="click">1970s Cans</a> <div id="box" align="center"> <div id="showhideconent4"> <p><a href="coke/tincans.shtml"><img src="coke_tincan.jpg" width="200" height="200" alt="Tin Cans" /></a></p> <p><a href="#" id="close4">Close</a> </p> </div> </div> </body> </html>

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  • How to debug CSS/Javascript hover issues

    - by Jason Creighton
    I often find myself wanting to debug CSS layout issues that involve DOM changes caused by Javascript in reaction to a hover event or different CSS rules applying due to the :hover selector. Normally, I'd use Firebug to inspect the element that's giving me trouble and see what its CSS properties were, and where those properties come from. However, when hovering is involved, it becomes impossible, because as soon as you move your mouse down to the Firebug panel, the elements you're interested in are no longer hovered, the CSS rules that apply are different, and (in the case of JS hovers) the DOM is changed. Is there any way I can "freeze" the state of the DOM and application of :hover in order to inspect the DOM as it was during a hover event? Any other ideas on how to debug this sort of issue are welcome, of course.

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  • jQuery ajax inside a loop problem

    - by steamboy
    Hello, This js loop script always get the last value of ui_item inside a jquery ajax funciton. How can a catch the correct value of each iteration? for (var i = 0; i <= split_files_cb_value_holder.length - 1; i++){ var split_values = split_files_cb_value_holder[i].split(':'); ui_item = split_files_cb_value_holder[i]; $.ajax({ type: "POST", url: "ds/index.php/playlist/check_folder", data: "component_type="+$('#component_type').val()+"&value="+split_values[1], success: function(msg) { console.log(ui_item); //ALWAYS GETS THE LAST VALUE }, error: function() { alert("An error occured while updating. Try again in a while"); } }); } Thanks!

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  • Servlet receives OPTIONS instead of GET requests from jQuery?

    - by Urs
    All I want to achieve is to implement a servlet providing a json feed for my fullcalendar application. When I inspect http://arshaw.com/js/fullcalendar/examples/json.html with Bugzilla, I see that GET-requests are sent to receive the json feed. However, when I use this example within my scenario, fullcalendar seems to send OPTIONS-requests. The only difference is that I replaced "events: "json-events.php" with "http://localhost:8080/CalendarServletTest/HelloWorldServlet" (the url of my servlet). What do I miss? Or is this really a bug?

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  • Making an SVG DOM JavaScript class

    - by CryptoQuick
    I'm unsatisfied with other JavaScript libraries and frameworks like jQuery, MooTools, and Raphael, because of their inability to support SVG grouping. You'd think it'd be a very simple thing for them to implement. Anyway, I'm trying to make a JavaScript class (using John Resig's class.js script) like this: var El = Class.extend({ el: null, svgNS: "http://www.w3.org/2000/svg", init: function (type) { this.el = document.createElementNS(this.svgNS, type); }, set: function (name, attr) { this.el.setAttributeNS(null, name, attr); }, get: function (el, name) { var attr = this.el.getAttributeNS(null, name); return attr; }, add: function (targEl) { targEl.el.appendChild(this.el); }, remove: function (targEl) { targEl.el.removeChild(this.el); }, setEl: function (docId) { this.el = document.getElementById(docId); } }); I can add elements to the DOM using these statements outside of the class, but storing the element inside the class becomes problematic. Anyone have any creative ideas?

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  • debugging with internet explorer

    - by baiano
    I have some code that I thought I had written so that it would play nice on IE. But apparently it does not. I use IE8 for my testing and get quite frustrated with the built-in debugging 'tool'. I found that firebug has a javascript tool that debugs for IE but I have to click it for every page, wait for it to load and then test my script. Is there a way to make IE ALWAYS load the firebug .js file? I tried searching for way to set up a custom header file for my IE installation but was unsuccessful. Is there another tool out there that would be better/easier to use? Another way to test scripts for IE compatibility?

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  • deny iframe javascript to scroll parent window

    - by gucki
    I've a site with banner ads, loaded using iframes. The banner ads always scroll the parent window when the banner doesn't complety fit into the visible region. This is really annoying and I'd like to deny the javascript of the iframes to scroll the main window. Here is what I already tried: Move the iframe src code to another domain. Normally js from another domain should not be allowed to access the parent window, is it?! This doesn't work. Overwrite window.moveTo, window.scrollTo, window.scrollBy in parent with my own functions. This doesn't seem to work neither, as none of these functions seems to be called. :-( Any help would be really great :-)

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  • cannot display json data returned from jquery ajax call

    - by amby
    Hi, can somebody please tell me, how can I display json data returning from the ajax call. I am new to this. $.ajax({ type: "POST", dataType: 'JSON', //data: "{'ntid':'john'}", //contentType: "application/json; charset=utf-8", //processData: false, url: "Testing.aspx/SendMessage", error: function(XMLHttpRequest, textStatus, errorThrown) { alert(textStatus); }, success: function(result, txtStatus, httpRequest) { alert(txtStatus); the_object = result; $('#status').html(concatObject(the_object)); } above is the js file. should i need to do something on asp file directly to display it. if yes, then how? please reply me soon. i m stuck here and unable to display data here

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  • Javascript code for handling Form behaviour.

    - by Andrew
    Hello, Here's how the situation looks : I have a couple simple forms <form action='settings.php' method='post'> <input type='hidden' name='setting' value='value1'> <input type='submit' value='Value1'> </form> Other small forms close to it have value2, value3, ... for the specific setting1, etc. Now, I have all these forms placed on the settings.php subpage, but I'd also like to have copies of one or two of them on the index.php subpage (for ease of access, as they are in certain situations rather frequently used). Thing is I do not want those forms based on the index.php to redirect me in any way to settings.php, just post the hidden value to alter settings and that's all. How can I do this with JS ? Cheers

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  • JavaScript onload/onreadystatechange not firing when dynamically adding a script tag to the page.

    - by spoon16
    I am developing a bookmarklet that requires a specific version of jQuery be loaded on the page. When I have to dynamically insert a jQuery script tag to meet the requirments of the bookmarklet I want to wait for the onload or onreadystatechange event on the script tag before executing any function that requires jQuery. For some reason the onload and/or onreadystatechange events do not fire. Any ideas on what I am doing wrong here? var tag = document.createElement("script"); tag.type = "text/javascript"; tag.src = "http://ajax.microsoft.com/ajax/jquery/jquery-" + version + ".min.js"; tag.onload = tag.onreadystatechange = function () { __log("info", "test"); __log("info", this.readyState); }; document.getElementsByTagName('head')[0].appendChild(tag); The FULL code: http://gist.github.com/405215

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  • caching static files for ruby on rails application using nginx

    - by splintercell
    I have been trying for some time to serve & cache static files for my rails app using nginx. the rails app server runs mongrel_cluster and is deployed on a different host than that of nginx. following many of the available discussions I tried the following server { listen 80; server_name www.myappserver.com; ssl on; root /var/apps/myapp/current/public; location ~ ^/(images|javascripts|stylesheets)/ { root /var/apps/myapp/current; expires 10y; } location / { proxy_pass http://myapp_upstream; } } But nginx fails to find the images and to load the css and js files. Can anyone help me out here? My aim is to configure nginx in such a way that it caches the static files till expiry. Please suggest me some way to achieve this or am I missing any point here?

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  • Web Application Translation, methods and tools

    - by CiscoIPPhone
    I've developed a web application. It needs to be translated to languages other than English in the future, and ideally the translators shouldn't need to know HTML/JS/C++ to provide the translation. The server side of the web application is written in C++ and the majority of the localised text is in the HTML files. My question is: What approaches are there to translating web applications? - Are there any existing tools that would enable a translator who doesn't understand HTML to translate a site? Should I write an application that extracts the localised text from a html file and can re-substitute translated text? Do you just provide the html file to your translators to be localised? I'm aware the question isn't strictly programming related but the solution may involve programming and it may require some software engineering.

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  • modifying a cloned element and reinserting in dom - jquery

    - by Praveen Prasad
    //dom <div id='toBeCloned'><span>Some name</span></div> <div id='targetElm'></div> //js $(function () { //creating a clone var _clone = $('#toBeCloned').clone(true); // target element var _target = $('#targetElm'); //now target element is to be filled with cloned element with data of span changed var _someData = [1, 2, 3, 4]; //loop through data $.each(_someData, function (i, data) { var _newElm = {}; $.extend(_newElm, _clone);//copy cloned to new Elm _newElm.find('span').html(data); //edit content of span alert('p'); // alert added to show that append in next line inspite of adding new element to dom just updating the previous one _target.append(_newElm);//update target }); }); expected Result: 1 2 3 4 resut iam getting is 4

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  • Making DiveIntoPython3 work in IE8 (fixing a Javascript performance issue)

    - by srid
    I am trying to fix the performance problem with Dive Into Python 3 on IE8. Visit this page in IE8 and, after a few moments, you will see the following popup: I traced down the culprit down to this line in j/dip3.js ... find("tr:nth-child(" + (i+1) + ") td:nth-child(2)"); If I disable it (and return from the function immediately), the "Stop executing this script?" dialog does not appear as the page now loads fairly fast. I am no Javascript/jquery expert, so I ask you fellow developers as to why this query is making IE slow. Is there a fix for it? Edit: you can download the entire webpage (980K) for local viewing/editing.

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  • CSS Image Rollovers

    - by dcolumbus
    <div id="navigation> <ul class="navlist"> <li><img src="images/btn1.gif"/></li> <li><img src="images/btn2.gif"/></li> <li><img src="images/btn3.gif"/></li> </ul> </div> How would I be able to give these "buttons" within the list rollover states without using JS? I'm totally drawing a blank... These links must be images.

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  • Using JSON, passing variable from php to javascript

    - by Ryan Fung
    I wonder why it is not working? check_login.php <?php session_start(); $data = array("username" => "true"); echo json_encode($data); ?> my js file var linkName; $.ajax({ type: "POST", url: "check_login.php", dataType: "json", success: function(json){ if(json.username != "true") { //do something } } }); I am trying to get the username after checking whether or not the user has signed in yet in the php file, something like passing a session variable. But currently passing a string seems to already have a problem. Any know what I did wrong here? Still not working the code above. Anyone want to help me out here?

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  • How to handle the browsers who don't support HTML5/CSS3

    - by Sheikh Aman
    Hi, I have been looking into HTML5 and CSS3 and have been liking it quite a lot. Got around the modernizr API, but am stuck at one point, and that leads to further confusions: How will I write a code that caters to the situation of non-compatibility between browsers ? This leads to the following confusions: if I write the doctype as <!DOCTYPE HTML> and my page is accessed in IE6, then ho IE6 will handle the page? If I try to include <video> tag and the page is again accessed by IE6/IE7IE8 (which don't support this tag), Then how am I supposed to be rolling back to flash for them? Should I use some JS to show/hide the content appropriately? I would love to hear some thoughts of you guys. If needed, please mark this post as a community wiki. Thanks!

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  • prevent _doPostBack getting rendered in button markup

    - by Christo Fur
    Hi Is it possible to prevent the _doPostBack() call getting rendered on a button? I would like add some custom logic prior to calling the postback. I have added an onClick event to the button e.g. <button id="manualSubmit" runat="server" class="manual-submit" onclick="$('#jeweller-form').hide();" /> However, this just gets rendered inline before the _doPostBack() But the postback gets fired before the jQueryHide takes place I would like to call my own JS function then manually trigger the postback any ideas?

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  • How can I get the text that was clicked on in Javascript?

    - by Jake
    Does anyone know if it is possible with javascript to to tell the position of a mouse click in some text? I know it's easy to get the x,y coordinates, but I'm wanting the position in the text. For example if I clicked inside <p>foo bar</p> I want to be able to tell that the click was on/after the 5th character. Or that foo b is before the click and ar is after it. By the way, I'm using jQuery too, I'm happy with pure JS and solutions that use jQ. Thanks in advance.

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  • ajax parameter to send correctly a variable to a specified url

    - by kawtousse
    I am trying to send data to a servlet from a js file but the servlet never received the parameter. so this is what I have: function showProject(prj) { xmlhttp=GetXmlHttpObject(); if (xmlhttp==null) { alert ("Browser does not support HTTP Request"); return; } var url="ServletxmlGenerator"; idprj = prj.options[prj.selectedIndex].value; //alert(idprj); url=url+"?idprj="+idprj; xmlhttp.onreadystatechange=stateChanged; xmlhttp.open("GET",url,true); xmlhttp.send(null); } and to capture th request it is with: public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String projectcode=request.getParameter("idprj"); System.out.println("++++projectCode:=" +projectcode); the output is like: ++++projectCode:=null Can any one explain it to me it seems to be correct but i didnot find the error.Thinks

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  • Parsing the json and storing it in an array?

    - by Prateek Raj
    hi everyone, i'm very new to this web related problems, please help i'm working on sencha which proves to be very difficult wen it comes to json parsing . . . . so i'm planning on retrieving the data to the html page and then load it into my js file. . . so here is the problem: i've already asked about it and got a reply.. http://jsbin.com/uwuca5 but now wen i use the html source code locally in my system or even by using the IIS i couldn't parse the data. . . . . . . here is the link for my json file: http://compliantbox.com/optionsedge/sample.php i'm trying to use this link in my code and retrive the data but the data is returning null Please Help Thank you,

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  • is this the correct use of JavaScript or is there a better way ? jquery slide to anchor

    - by Stuart Robson
    Hi guys, I'm currently workin on a project with a one page design that'll slide up and down between sections on an link... currently i have it as home artist's materials picture framing gallery contact us or <a href="javascript:void(0)" onClick="goToByScroll('contactus')"> hope fully you can see the code... then in a js file i've got function goToByScroll(id){ $('html,body').animate({scrollTop: $("#"+id).offset().top},'slow'); } is this ok ?? or should this be done a different way ??? thanks in advance

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  • focus on page scroll navigation when using iPad

    - by user1154435
    I've used Page Scroller Lite http://pagescroller.com to set up a single-page site at http://www.thestitchshop.co.uk There seems to be an issue that scolling works only once when clicking on a menu item. It will only work again after one touched scrolls the page 'manually' by sliding the finger across the page. Apparently, the issue is that the content gets the focus after the scroll and tapping on navigation then actually taps behind it. I've tried contacting the author of pagecroller, but no luck. So, how do I fix it? I don't have any JS knowledge, so I need a little more help along the way. Many thanks. By the way,I've posted the same question here http://www.sitepoint.com/forums/showthread.php?886838-Problem-with-page-scrolling-on-iPad and I've tried adding the suggested code somehow, but without success.

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  • Converting an array to JSON and passing that to asmx

    - by user96403
    Hi. I am trying to use JSON.stringify() (from json2.js of json[dot]org ) to convert a JavaScript array to JSON string and to pass it to an asmx web method. I use jQuery AJAX. The call reaches the web method where I take a List <Object> as parameter but I get an empty list there in debug mode. My JSON string looks like well formed with all data , I even tried having single-quotes and double-quotes(escaped) around the 'names' of the JSON string. Please help.

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