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• Sharing on Facebook from public kiosk -- user can't logout from FB!

  - by user206481

  I have a website that is designed to be run at a kiosk at public events. I want users to be able to share a page from this site on Facebook without leaving their Facebook session logged in. This is not a Facebook Connect site (there's no login to synchronize w/FB), all I have is a link for sharing that goes to Facebook's sharer.php: <a href="http://www.facebook.com/sharer.php?u="http://mysite.com/mypage">share this</a> It allows the user to log in and posts the link fine, but then closes the window and leaves the user logged in. There is no option for logging out, so the next user that comes along and wants to share has the previous user's FB account logged in! Seems like this just changed when Facebook's UI changed recently; previously it would redirect to the user's profile page after posting, from which they could log out. How can I fix this? Any recommendations on the "right way" to allow sharing with FB from a public kiosk?

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• Facebook with RestFB

  - by Trick

  I just began to use this and I already stumbled on some from-my-side-strange errors. I am using RestFB jar. My problem is, that I can not get my session key (this is the start of everything :)). FacebookClient facebookClient = new DefaultFacebookClient(API_KEY, SECRET_KEY); try { String token = facebookClient.execute("auth.createToken", String.class, Parameter.with("null", "null")); System.out.println(token); String session = facebookClient.execute("auth.getSession", String.class, Parameter.with("auth_token", token)); System.out.println(session); } catch (FacebookException e) { e.printStackTrace(); } I get the token correctly. Parameter.with("null,"null") is there because it demands at least one, but method for creating token doesn't expect any. When trying to get the session key, I get the following error: com.restfb.FacebookResponseStatusException: Received Facebook error response (code 100): Invalid parameter at com.restfb.DefaultFacebookClient.throwFacebookResponseStatusExceptionIfNecessary(DefaultFacebookClient.java:357) at com.restfb.DefaultFacebookClient.makeRequest(DefaultFacebookClient.java:320) at com.restfb.DefaultFacebookClient.execute(DefaultFacebookClient.java:188) at com.restfb.DefaultFacebookClient.execute(DefaultFacebookClient.java:178) Documentation for getting session doesn't say any more parameters are required! Did anybody already try this JAR or do you have any other solution for Java?

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• Facebook with RestFB (Java)

  - by Trick

  I just began to use this and I already stumbled on some from-my-side-strange errors. I am using RestFB jar. My problem is, that I can not get my session key (this is the start of everything :)). FacebookClient facebookClient = new DefaultFacebookClient(API_KEY, SECRET_KEY); try { String token = facebookClient.execute("auth.createToken", String.class, Parameter.with("null", "null")); System.out.println(token); String session = facebookClient.execute("auth.getSession", String.class, Parameter.with("auth_token", token)); System.out.println(session); } catch (FacebookException e) { e.printStackTrace(); } I get the token correctly. Parameter.with("null,"null") is there because it demands at least one, but method for creating token doesn't expect any. When trying to get the session key, I get the following error: com.restfb.FacebookResponseStatusException: Received Facebook error response (code 100): Invalid parameter at com.restfb.DefaultFacebookClient.throwFacebookResponseStatusExceptionIfNecessary(DefaultFacebookClient.java:357) at com.restfb.DefaultFacebookClient.makeRequest(DefaultFacebookClient.java:320) at com.restfb.DefaultFacebookClient.execute(DefaultFacebookClient.java:188) at com.restfb.DefaultFacebookClient.execute(DefaultFacebookClient.java:178) Documentation for getting session doesn't say any more parameters are required! Did anybody already try this JAR or do you have any other solution for Java? EDIT: Does the application needs to be "published" in searchers to be able to do this??

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• Unhandled Status Event (facebook application)

  - by Fahim Akhter

  Hi, I'm getting the following error looked around couldn't find a resultion to it. I'm working on Facebook btw with flash. Warning: AllowScriptAccess='never' found in HTML. This setting is ineffective and deprecated. See http://www.adobe.com/go/allowscriptaccess for details. One of your LocalConnection variables was able to connect say: calling callFBJS a329775198094_sendShoeNumber args ["test"] say: sending to _swf416624 method: asMethod args ["10"] Error #2044: Unhandled StatusEvent:. level=error, code= This is the code I am using: var connection:LocalConnection = new LocalConnection(); var connectionName:String = LoaderInfo(this.root.loaderInfo).parameters.fb_local_connection; // Used to get information from javascript connection.allowDomain("*"); connection.client = { asMethod: function(paramOne:Number) { trace("HAVE RECIEVED SOMETHING : "+paramOne); } }; // To call the javascript function callFBJS(methodName:String, parameters:Array):void { if (connectionNameOne) { connectionOne.send(connectionNameOne, "callFBJS", methodName,parameters); } } callFBJS("sendShoeNumber", ["test"]); connection.addEventListener(StatusEvent.STATUS, testStatus); // Listener for status event function testStatus(event:StatusEvent):void { switch (event.level) { case "status": trace("One of your LocalConnection variables was able to connect"); break; case "error": trace("One of your LocalConnection variables FAILED to connect"); break; } } Have been stuck on this for a while now.

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• Javascript not showing up on Facebook Application's Profile Tab

  - by prateekdayal

  Hi, This may sound very noobish but I have tried to read the forum posts and docs on javascript behavior on Facebook's profile tabs. I understand that profile tabs don't support referencing external javascript but even my inline tags are not showing up on profile pages. In fact I am trying the fbjs-swf bridge and the code needed to instantiate the swf does not show up on the page <fb:fbjs_bridge/> <div id="swfContainer"></div> <script> var swf = document.createElement('fb:swf'); swf.setId('my_swf_id'); swf.setWidth('630'); swf.setHeight('520'); swf.setSWFSrc('http://www.muziboo.com/swf/player4-2.swf'); document.getElementById('swfContainer').appendChild(swf); document.getElementById('my_swf_id').callSWF('asMethod', 'one', 'two'); </script> I see a swf embedded (the one for the fbjs bridge) but I don't see any script tag containing the above javascript code. What am I missing? I can see the javascript code on canvas page though Thanks

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• How to post a poll on the Facebook wall

  - by Bengt

  Hi, I'm trying to convert my poll app into a Facebook iframe app. My app is written in PHP and uses some Ajax calls to vote at a poll. In the application canvas everything is working fine, but of course I want to get the poll on the wall of a user too. Unfortunately I'm not able to find out how I can post a simple poll with some radio buttons for the options on the wall. I know how to publish images, text, audio files and links to the wall, but I have no idea how to publish my poll on the wall. And I don't just want to use links to vote, I want the user be able to choose a radio button. Does anyone have an idea how to do this or where to find information about doing this? I'm stuck there now for a while and it gets pretty frustrating. I'm using the new Graph API by the way. Or is this impossible? But I don't think so. Any help is appreciated. Bengt

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• Recommend me an architecture for this Facebook application

  - by andybaird

  Firstly, this question is subjective. There is not a right answer for this question and it really depends on what works for you. I'm hoping to use this thread as a breeding ground for ideas. I hope this is acceptable in this medium. I'm working on building a Facebook app that will be replacing an already popular app that gets ~50k hits a day. The original app is using a very typical LAMP setup with help from some Zend libraries for database layer extraction. For the most part the app worked well, except to solve a lot of issues I ended up fragmenting tables to speed things up. As a result, I couldn't do a lot of things with the app that I wanted to (namely any processing using aggregate data that needed to be returned quickly) So I'm starting to design plans for the next version of this application, and I have a whole bunch of new and cool features that I know would choke my current setup. I'm looking for technological recommendations of data storage methods that scale well. The database does not necessarily need to be relational, simple key/value storage would suffice (although at present time I know little to nothing about KV stores) What's your recommendation? How would you tackle this? I'd like to take a completely free approach to this -- although I am most familiar and comfortable using PHP, I want to leave all technical options open.

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• Facebook PHP Api cUrl auto post to page's wall (not profile wall)

  - by Ian

  I need to be able to post to the wall of my page, i have given offline_permissions and I got it to post to my profile wall but I need it to post to my pages wall. Anyone know how to do this, where does my code need changing? thanks <?php session_start(); $fb_page_id = 106502962712016; $fb_access_token = '121247121254761|588e45312b074a0ec3dd62c39-1727154049|L0VGSJsCBrsSj5H4w1LwobRGeRc'; $url = 'https://graph.facebook.com/'.$fb_page_id.'/feed'; $attachment = array( 'access_token' => $fb_access_token, 'message' => 'message text', 'name' => 'name text', 'link' => 'http://domain.com/', 'description' => 'Description Text', 'picture'=>'http://domain.com/logo.jpg', ); // set the target url $ch = curl_init(); curl_setopt($ch, CURLOPT_URL,$url); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $attachment); curl_setopt($ch, CURLOPT_HEADER,0); curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); $go = curl_exec($ch); curl_close ($ch); ?

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• Facebook API - delete status

  - by Simon R

  In PHP, I'm using curl to send a delete to the fb graph api - and yet I'm getting the following error; {"error":{"type":"GraphMethodException","message":"Unsupported delete request."}} The code I'm using is; $ch = curl_init("https://graph.facebook.com/" . $status_id . ""); curl_setopt($ch, CURLOPT_VERBOSE, 1); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_TIMEOUT, 120); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $query); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE"); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 1); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0); curl_setopt($ch, CURLOPT_CAINFO, NULL); curl_setopt($ch, CURLOPT_CAPATH, NULL); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0); $result = curl_exec($ch); echo $result; $query contains the access token.

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• hosting a high traffic facebook app (game)

  - by z3cko

  we are currently developing a high traffic facebook application. all the traffic will be within one month, where there are 500.000 to 1.000.000 expected users. after that month, the game is over and we have a winner - so the app will be archived. we are currently planning to develop the application with ruby on rails and searching for hosting options that can deal with the traffic. the problem is not so much the users, but the peak values: we will have around 500.000 requests coming daily within a short timeframe (lets say within 3 minutes in the worst case) we are expecting 500.000 to 1.000.000 users of the application, with peaks at 1:00pm (timezone GMT+1), where most (up to 80% of the users) will send most of the requests. the requests are from 11th of june to 11.july - after that, the app/game is closed/over. we are currently developing an aggressive caching mechanism - currently we are thinking about 2 or 3 small apps/webservices, that will handle the load. the load is distributed as follows: a) main application, cached data (11 screens, 200k each) b) voting: every day until 1:00pm (timezone GMT+1) - every user votes with about 10k data sent, high concurrent peak values! questions: is there any specific application setup that is recommendable? are there any hosting partners that can be recommended? thanks!

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• Retrieving friend's likes from the Facebook Graph API

  - by Joe Frank

  Howdy- I have been tooling around with the Facebook Graph API and successfully retrieved back a list of my likes, and a list of my friends (once I authenticated using OAuth). But what I really want to achieve is pulling back my friend's likes. When I try and do that, obviously using the same URL that I use to pull back my own likes but subbing the friend's user id for "me", I don't get anything back, unless they have installed the app as well. Then I get them no problem. To be clear, I can only see the likes of friends who have installed my application. So clearly I am running into a security/rights issue of some sort. I could see where this would be the case; you simply aren't allowed to see your friend's likes unless they have installed the same app. Fair enough, but then how is blekko.com doing it? I even tried using FQL without much luck. I suspect I am missing something totally obvious. Anyone had any luck with this? Maybe with the Javascript API or one of the other access methods? Thanks in advance for any guidance.

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• Android Facebook RequestListener

  - by Marcus King

  I'm new to Java, but have been a .NET developer for years now and I am a bit confused about the point of the RequestListener object as I can't retrieve the results of my asynchronous calls on the UI thread from what I can tell. My research has told me I should not use singletons or the application context object for getting and storing data. I could use sqlLite, but the data I need is too transient to bother. I would like to know how to have the asyncfacebookrunner object report back it's responses to the UI thread so I can proceed to make decisions between my own api and the objects returned to me from the facebook calls I am making in the async calls. Am I missing something? I can't seem to find a way to get data out. I can pass a Bundle in, but I'm not too sure how to get data out. I would think I would pass it an Intent object to retrieve, but I am not seeing it. I think my eyes are crossed from lack of sleep at this point. Any help here?

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• How can I create a facebook style message system in Rails 3?

  - by Angela

  I am trying to create a basic message system that allows users to send messages to each other and display it in a simple "Inbox" that shows both messages received and sent, as well as the status of read or unread. Ideally I could reuse existing code. But if not, can someone provide a framework to help me do it? I started to use a single Message record that has UserMessage - one for the sender, one for the receiver. That way I could have separate status. But I'm not sure I'm quite doing it right and would like some guidance. Thanks.

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• Why was my Facebook game rejected with the note that "your app icon must not overlap with content in your cover image?"

  - by peterwilli

  My FB game just recently got rejected for two reasons. The first I fixed, but I just can't see to figure out what they mean by the second, and I was hoping someone else got the same issue and did know what they meant. The remaining error is: Cover Image Your app icon must not overlap with content in your cover image. Click on 'Web Preview' in the 'App Details' section to check for overlap prior to submitting your app. See more here. All I know is that the rejection has something to do with the cover image, not the icons or the screenshots. The web preview of my game looks like this now: Please let me know what to do to get approved.

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• What is the feature that imports URL information into facebook and google+?

  - by Michael

  What I am trying to do. I want to be able to import heading, short description and an image into my website, just using a link. I am using Joomla but can switch to any CMS, or try to build an extension myself. The problem is I dont know where to look for example code, or what to look for. To me it doesnt seem like too difficult a process. Also, the code must be out there, with a little tweaking I can probably use someone elses, but I dont even know what to search for.

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• What server-side language should I learn to be able to start big user-input websites (like twitter, facebook, stackexchange...)?

  - by DarkLightA

  I'm thinking ASP.NET, but I don't really know. Can someone tell me what a good server-side language for the "Zuckerberg-dorm-room-starting-up-a-huge-website" deal? I know the latter used PHP, but as I've understood it that's kind of outdated and C#/ASP.NET is a better way to go about it. Is HTML + CSS + JavaScript + C#/ASP.NET MVC + MySQL a good combination for it? Is MySQL combined in ASP.NET MVC? Also, where's a good tutorial for the server-side language you suggest? As mentioned previously it has to be able to handle massive user-input without much fuss.

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• How to ignore comments when reading a XML file into a XmlDocument?

  - by tunnuz

  Possible duplicate: How to remove all comment tags from XmlDocument Hello, I am trying to read a XML document with C#, I am doing it this way: XmlDocument myData = new XmlDocument(); myData.Load("datafile.xml"); anyway, I sometimes get comments when reading XmlNode.ChildNodes. For the benefit of who's experiencing the same requirement, here's how I did it at the end: /** Validate a file, return a XmlDocument, exclude comments */ private XmlDocument LoadAndValidate( String fileName ) { // Create XML reader settings XmlReaderSettings settings = new XmlReaderSettings(); settings.IgnoreComments = true; // Exclude comments settings.ProhibitDtd = false; settings.ValidationType = ValidationType.DTD; // Validation // Create reader based on settings XmlReader reader = XmlReader.Create(fileName, settings); try { // Will throw exception if document is invalid XmlDocument document = new XmlDocument(); document.Load(reader); return document; } catch (XmlSchemaException) { return null; } } Thank you Tommaso

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• Do you have any tips for comments to keep them in step with the code? [closed]

  - by Rob Wells

  Possible Duplicate: How do you like your comments? G'day, I've read both of Steve McConnell's excellent Code Complete books "Code Complete" and "Code Complete 2" and was wondering if people have any other suggestions for commenting code. My commenting mantra could be summed up by the basic idea of expressing "what the code below cannot say". While enjoying this interesting blog post by Jeff about commenting I was still left wondering "When coding, when do you feel a comment is required?" Edit: Oops. Seems to be a duplicate of this question http://stackoverflow.com/questions/121945/how-do-you-like-your-comments so sorry for the noise. Thanks to my, seemingly, SO shadow for pointing it out - wouldn't have thought I was that interesting. Now off to read the original post and see if it is relevant. Edit: I meant to emphasise the best appraoch to ensure that your comments will stay in step with the code. Maybe expressing an intent rather than the mechansim for instance.

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• How to extend the comments framework (django) by removing unnecesary fields?

  - by Ignacio

  Hi, I've been reading on the django docs about the comments framework and how to customize it (http://docs.djangoproject.com/en/1.1/ref/contrib/comments/custom/) In that page, it shows how to add new fields to a form. But what I want to do is to remove unnecesary fields, like URL, email (amongst other minor mods.) On that same doc page it says the way to go is to extend my custom comments class from BaseCommentAbstractModel, but that's pretty much it, I've come so far and now I'm at a loss. I couldn't find anything on this specific aspect.

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• What are the virtues of using XML comments in .NET?

  - by Michal Czardybon

  I can't understand the virtues of using XML comments. I know they can be converted into nice documentation external to the code, but the same can be achieved with the much more concise DOxygen syntax. In my opinion the XML comments are wrong, because: They obfuscate the comments and the code in general. (They are more difficult to read by humans). Less code can be viewed on a single screen, because "summary" and "/summary" take additional lines. They suggest that all method parameters have to be commented, whereas 90% of them are obvious and SHOULD be left not commented. The only problem I have with this is that my point of view seems to be in minority. Why?

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• Help with an SQL query on a single (comments) table (screenshot included)

  - by citrus

  Please see screenshot Goal: id like to have comments nested 1 level deep The comments would be arranged so that rating of the parent is in descending order the rating of the children comments is irrelevant The left hand side of the screenshot shows the output that Id like. The RHS shows the table data. All of the comments are held in 1 table. Im a beginner with SQL queries, the best I can do is: SELECT * FROM [Comments] WHERE ([ArticleId] = @ArticleId) ORDER BY [ThreadId] DESC, [DateMade] This somewhat does the job, but it obviously neglects the rating. So the above statement would show output where Bobs Comment and all of the children comments are before Amy's and her childrens comments. How can I run this query correctly?

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• Webpage shared with like button not showing in users timeline

  - by einar

  I have a single pages and a one page that lists all of the single pages. On the overview page you can like each single page with their url. And of corse you can do the same when you are viewing a single page. My issue is very strange. Most of the pages that I would like show up on my timeline. But then there are some that don't show after I click like, not even if I click on "Post to Facebook". This page will not show in a users timeline if liked ore "Post'ed to Facebook". http://www.inspiredbyiceland.com/inspiration/iceland-airwaves/valdimar/ But this one will http://www.inspiredbyiceland.com/inspiration/iceland-airwaves/snorri-helgason/ But these pages are excls the same, they use the same template so the code should not be any different, and in fact I cant see any differents between these pages that could be causing this kind of problem. You can view the overview page here http://www.inspiredbyiceland.com/inspiration/iceland-airwaves/ . Most of the single pages work fine and show up on users timeline. Most of the content on the site works fine so far as I know. There is an Facebook application defined on the page. I'm not sure if that is related to this problem.

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• 'send' button error 401

  - by jjd

  I'm having a strange error with 'Send' button I have the following code on my page <div id="fb-root"></div> <script type="text/javascript"> (function(d, s, id) { var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_US/all.js#xfbml=1&amp;appId=<myAppId>"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk')); </script> <br/> <fb:like send="true" width="450" show_faces="true"></fb:like> The 'send' button works fine if I access the application via IP address, but if I use a domain name, Facebook returns The page at http://<...>.com:8080/pages/question.jsf could not be reached because the server returned status code 401. Meantime 'like' button works fine. The application front-end is built with JSF2+Primefaces. Any ideas would be appreciated Thanks

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• Some questions about dotnetopenauth

  - by chobo2

  Hi I have a couple outstanding questions mainly reguarding twitter and facebook In the FacebookGraph class there are properties such as Id,name,etc. I am wondering how do I add to this list? Like what happens if I want a users hometown? I tried to add a property called hometown but it always is null. What should I store their id(1418) or the whole url(http://www.facebook.com/profile.php?id=1418) for lookup later in my db to grab their data and to see if they have an account with my site? Is it actually good to use this id as it seems like it is common knowledge. Can't someone just find the profile id or whatever and do a fake request on my site? how do you setup dotnetopenauth to deal with the case when a user goes to facebook and deletes access to my website. I know you can send a deauthorization code to your site and then delete their account but I don't know how to do that through dotnetopenauth Twitter Is it possible to do number 4 with twitter? Ajax Is it possible to make the openid stuff ajax? I don't see a sample anywhere in the dotnetopenauth samples.

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• call FB.login() after FB.init() automatically

  - by Tobi Projectx

  i`m developing an app for Facebook. My Code: function init() { window.fbAsyncInit = function() { var appID = 'xxxxxxxxxxxxxxxxxxxxxxxxxx'; FB.init({ appId: appID, status: true, cookie: true, xfbml: true}); login(); }; (function() { var e = document.createElement("script"); e.async = true; e.src = "https://connect.facebook.net/en_US/all.js?xfbml=1"; document.getElementById("fb-root").appendChild(e); }()); }; function login() { FB.login(function(response) { if (response.session) { if (response.perms) { // user is logged in and granted some permissions. // perms is a comma separated list of granted permissions } else { // user is logged in, but did not grant any permissions } } else { // user is not logged in } }, {perms:'read_stream,publish_stream,offline_access'}); }; I want to call the "init" function and after "init" should call the "login" function (open up the Facebook Login Window) automatically. But i always get "b is null" FB.provide('',{ui:function(f,b){if(!f....onent(FB.UIServer._resultToken));}}); Error in Firebug. Can anybody help me? Does anybody have the same problem? Thanks

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