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• Using EC2 instance as main development platform

  - by David

  My problem I am working as a consultant for various companies. Each company provides me with a laptop where with their software on and I also have my own where I have my development environment. I tend to buy a new laptop every second year and find myself spending lots of time configuring and installing software. I also sometimes spend a lot of time waiting for my laptop to process things. To solve all these issues, I am now considering using EC2 (running windows instances) as my main development platform and just access this from any PC I happen to be at. I calculated that running the High-CPU On-Demand Instances (medium) for 8 hours a day for a year costs me 580$, which is acceptable. I imagine that when I approach the workplace each day, I will make a single click my phone to fire up the instance, so it is ready when I get to work. I should have different icons on my phone to fire up the various instance types. The same software should of course automatically be loaded on the various hardware (sometimes I would even need their instance with 68.4 GB of memory). Another advantage is that if I am having a specific problem with my instance, I could fire up another instance and have someone look into the problem and update the image. My question: Does anyone have experience with such a setup on EC2? What kind of problems do you forsee?

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• Using EC2 instance as main development platform

  - by David

  My problem I am working as a consultant for various companies. Each company provides me with a laptop with their software on and I also have my own, where I have my development environment. I tend to buy a new laptop every second year and find myself spending lots of time configuring and installing software. I also spend a lot of time waiting for my laptop to process things. To solve all these issues, I am now considering using EC2 (running windows instances) as my main development platform and just access this from any PC I happen to be at. I calculated that running the Large instance (cheapest 64-bit) for 8 hours a day for a year costs me 960$ per year, which is acceptable. I imagine that when I approach the workplace each day, I will make a single tap on my phone to fire up the instance, so it is ready when I get to work. I should have different icons on my phone to fire up the various instance types. The same software should of course automatically be loaded on the various hardware (sometimes I would even need their instance with 68.4 GB of memory). Another advantage is that if I am having a specific problem with my instance, I could fire up another instance and have someone look into the problem and update the image. My question: Does anyone have experience with such a setup on EC2? What kind of problems do you foresee?

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• Suggest the best options to me to design the dynamic web interface using PHP MYSQL and AJAX

  - by Krishna

  Hello, I am designing a web interface for a company. I am describing the company's profile: company is currently having 5 branches and planning to extend their branches all over the country. it is an insurance surveying company. they are dealing with 6 Categories in the insurance domain, vide .. Engineering Fire Marine Motor Miscellaneous Risk Inspection and branches named as b1, b2, b3, b4, b5 and Extending. and finally they have contract with 22 companies. For each claim they are assign a unique ID. like contractcompany/category/serialno Ex: take a contracted company names as xxx, sss, zzz. xxx/Engineering/001 sss/Engineering/001 . . . xxx/Enginnering/002 sss/Engineering/002 . . . xxx/Fire/001 sss/Fire/001 . . . xxx/Fire/002 . . . xxx/Fire/002 . . . and so on..... by this way they issue the unique ID for each claim. Finally what i want is developing the interface with PHP mysql and ajax auto generating the unique id for each claim. store full details of the claims with reference to unique id. show all claims in one page, and they can view by branch wise and category wise. send monthly Report (All claims they have given and status of claims) to contract companies. give access to contracted companies, but they can view only their respective claims. Each claim has its own documents. So they can be uploaded by own company users or administrator. these files are associated with unique ID. contracted companies can view files. Give access to branches to enter new claims and update old claims. Administrator can create, update and delete all the claims and their details. Only administrator can grant new users (own company branches / contracted companies) Finally the the panel is completely database driven. Could any body can help. Thanks in advance Kindly do the needful and oblige Thanks and Regards Krishna. P [email protected]

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• Un Service Pack annoncé pour Microsoft Exchange 2010, une beta du SP prévue pour juin

  Mise à jour du 08/04/10 Un Service Pack prévu pour Microsoft Exchange 2010 Améliorera les performances du serveur de messagerie, une beta du SP arrivera en juin Microsoft vient de dévoiler le contenu du prochain Service Pack à venir pour Exchange 2010, le "serveur de communication et de collaboration pour les entreprises, basé sur la messagerie électronique", pour reprendre les propres termes de Redmond. Ce SP1 devrait permettre un meilleur archivage (création de filtres pour mieux automatiser l'archivage ou la suppression des messages), une recherche plus efficace dans les mails (avec l'introduction de la recherche "mu...

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• Adobe confirme l'abandon de Flash Player pour mobiles et le licenciement de 750 employés

  Adobe confirme l'abandon de Flash Player pour mobiles Et le licenciement de 750 employés Mise à jour du 10 novembre 2011 par Idelways Sur un billet de blog, Adobe vient d'officialiser l'abandon du plug-in Flash Player pour mobiles. Une nouvelle qui a fait hier l'objet de rumeurs dans la presse, en même temps que l'annonce de suppression de 750 emplois de l'entreprise. Danny Winokur, vice-président du développement interactif d'Adobe, atteste que son entreprise veut « centrer Flash sur la navigation sur ordinateurs et pour applications mobiles [NDR : avec la plateforme AIR] », confirmant la volonté d'Adobe à « c...

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• Introduction par l'exemple à Entity Framework 5 Code First, un article de Serge Tahé

  Bonjour, J'ai mis en ligne "Introduction par l'exemple à Entity Framework 5 Code First". C'est un tutoriel destiné en priorité aux débutants même s'il peut intéresser d'autres publics. Citation: - Création d'une base SQL Server 2012 à partir d'entités EF5 ; - Ajout, Modification, Suppression d'entités ; - Requêtage du contexte de persistance avec LINQ to Entities ; - Gestion des entités détachées ; - Lazy et Eager loading ;

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• Les snapshots dans Hyper-V, par Valentin Pourchet

  Valentin Pourchet vous propose un tutoriel sur les Snapshots dans Hyper-V Citation: En bon "hyperviseur", Hyper-V de Microsoft offre la possibilité de faire des snapshots (captures d'un état d'une machine virtuelle à un instant donné). Nous verrons ici comment Hyper-V gère cette fonctionnalité, ainsi que les procédures de création, suppression et utilisation des snapshots. Bonne l...

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• Emploi : l'automatisation grandissante des datacenters modifie les embauches dans ce secteur, quel a

  Emploi : l'automatisation grandissante des datacenters modifie les embauches dans ce secteur, exemple avec la restructuration d'HP Hewlett-Packard a annoncé la semaine dernière un plan de restructuration qui prévoit la suppression de 9000 postes (majoritairement des postes d'administrateurs systèmes selon les prévisions de Forrester Research), mais qui projette en contrepartie d'en recruter 6000 autres (vraisemblablement en architecture IT et en ingénierie commerciale). HP explique par exemple que sa restructuration intègre la consolidation des datacenters et la gestion des plateformes, pour une plus grande automatisation de la délivrance d'applications pour les clients : « Nous pensons aux cinq et dix prochaines années qui nous am...

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• Intel lance un concours de création d'applications pour sa caméra 3D RealSense, avec plus d'un million de dollars US à se partager

  Intel lance un concours de création d'applications pour sa caméra 3D RealSense, avec plus d'un million de dollars US à se partager Mise à jour du 18/08/2014Intel annonce l'édition 2014 de son concours Perceptual Computing App Challenge articulé autour de sa technologie RealSense. Pour rappel, sa caméra 3D RealSense a été présentée comme étant son premier produit « d'informatique perceptuelle » et embarque entre autre un système de reconnaisse faciale, vocale, la suppression des arrières plans,...

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• Droit à l'oubli : 12 000 requêtes reçues par Google en une journée, après le lancement de son formulaire

  Droit à l'oubli : 12 000 requêtes reçues par Google en une journée après le lancement du formulaire de demande de suppression des données sensiblesEn fin de semaine dernière, Google lançait un formulaire en ligne pour permettre aux internautes européens de signaler en quelques clics qu'ils ne souhaitaient plus voir des liens vers des informations sensibles les concernant affichés dans les résultats du moteur de recherche.En seulement une journée après l'ouverture des soumissions, le géant de la...

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• Avoiding new operator in JavaScript -- the better way

  - by greengit

  Warning: This is a long post. Let's keep it simple. I want to avoid having to prefix the new operator every time I call a constructor in JavaScript. This is because I tend to forget it, and my code screws up badly. The simple way around this is this... function Make(x) { if ( !(this instanceof arguments.callee) ) return new arguments.callee(x); // do your stuff... } But, I need this to accept variable no. of arguments, like this... m1 = Make(); m2 = Make(1,2,3); m3 = Make('apple', 'banana'); The first immediate solution seems to be the 'apply' method like this... function Make() { if ( !(this instanceof arguments.callee) ) return new arguments.callee.apply(null, arguments); // do your stuff } This is WRONG however -- the new object is passed to the apply method and NOT to our constructor arguments.callee. Now, I've come up with three solutions. My simple question is: which one seems best. Or, if you have a better method, tell it. First – use eval() to dynamically create JavaScript code that calls the constructor. function Make(/* ... */) { if ( !(this instanceof arguments.callee) ) { // collect all the arguments var arr = []; for ( var i = 0; arguments[i]; i++ ) arr.push( 'arguments[' + i + ']' ); // create code var code = 'new arguments.callee(' + arr.join(',') + ');'; // call it return eval( code ); } // do your stuff with variable arguments... } Second – Every object has __proto__ property which is a 'secret' link to its prototype object. Fortunately this property is writable. function Make(/* ... */) { var obj = {}; // do your stuff on 'obj' just like you'd do on 'this' // use the variable arguments here // now do the __proto__ magic // by 'mutating' obj to make it a different object obj.__proto__ = arguments.callee.prototype; // must return obj return obj; } Third – This is something similar to second solution. function Make(/* ... */) { // we'll set '_construct' outside var obj = new arguments.callee._construct(); // now do your stuff on 'obj' just like you'd do on 'this' // use the variable arguments here // you have to return obj return obj; } // now first set the _construct property to an empty function Make._construct = function() {}; // and then mutate the prototype of _construct Make._construct.prototype = Make.prototype; eval solution seems clumsy and comes with all the problems of "evil eval". __proto__ solution is non-standard and the "Great Browser of mIsERY" doesn't honor it. The third solution seems overly complicated. But with all the above three solutions, we can do something like this, that we can't otherwise... m1 = Make(); m2 = Make(1,2,3); m3 = Make('apple', 'banana'); m1 instanceof Make; // true m2 instanceof Make; // true m3 instanceof Make; // true Make.prototype.fire = function() { // ... }; m1.fire(); m2.fire(); m3.fire(); So effectively the above solutions give us "true" constructors that accept variable no. of arguments and don't require new. What's your take on this. -- UPDATE -- Some have said "just throw an error". My response is: we are doing a heavy app with 10+ constructors and I think it'd be far more wieldy if every constructor could "smartly" handle that mistake without throwing error messages on the console.

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• Why does my Messaging Menu code not work when split into functions?

  - by fluteflute

  Below are two python programs. They're exactly the same, except for one is split into two functions. However only the one that's split into two functions doesn't work - the second function doesn't work. Why would this be? Note the code is taken from this useful blog post. Without functions (works): import gtk def show_window_function(x, y): print x print y # get the indicate module, which does all the work import indicate # Create a server item mm = indicate.indicate_server_ref_default() # If someone clicks your server item in the MM, fire the server-display signal mm.connect("server-display", show_window_function) # Set the type of messages that your item uses. It's not at all clear which types # you're allowed to use, here. mm.set_type("message.im") # You must specify a .desktop file: this is where the MM gets the name of your # app from. mm.set_desktop_file("/usr/share/applications/nautilus.desktop") # Show the item in the MM. mm.show() # Create a source item mm_source = indicate.Indicator() # Again, it's not clear which subtypes you are allowed to use here. mm_source.set_property("subtype", "im") # "Sender" is the text that appears in the source item in the MM mm_source.set_property("sender", "Unread") # If someone clicks this source item in the MM, fire the user-display signal mm_source.connect("user-display", show_window_function) # Light up the messaging menu so that people know something has changed mm_source.set_property("draw-attention", "true") # Set the count of messages in this source. mm_source.set_property("count", "15") # If you prefer, you can set the time of the last message from this source, # rather than the count. (You can't set both.) This means that instead of a # message count, the MM will show "2m" or similar for the time since this # message arrived. # mm_source.set_property_time("time", time.time()) mm_source.show() gtk.mainloop() With functions (second function is executed but doesn't actually work): import gtk def show_window_function(x, y): print x print y # get the indicate module, which does all the work import indicate def function1(): # Create a server item mm = indicate.indicate_server_ref_default() # If someone clicks your server item in the MM, fire the server-display signal mm.connect("server-display", show_window_function) # Set the type of messages that your item uses. It's not at all clear which types # you're allowed to use, here. mm.set_type("message.im") # You must specify a .desktop file: this is where the MM gets the name of your # app from. mm.set_desktop_file("/usr/share/applications/nautilus.desktop") # Show the item in the MM. mm.show() def function2(): # Create a source item mm_source = indicate.Indicator() # Again, it's not clear which subtypes you are allowed to use here. mm_source.set_property("subtype", "im") # "Sender" is the text that appears in the source item in the MM mm_source.set_property("sender", "Unread") # If someone clicks this source item in the MM, fire the user-display signal mm_source.connect("user-display", show_window_function) # Light up the messaging menu so that people know something has changed mm_source.set_property("draw-attention", "true") # Set the count of messages in this source. mm_source.set_property("count", "15") # If you prefer, you can set the time of the last message from this source, # rather than the count. (You can't set both.) This means that instead of a # message count, the MM will show "2m" or similar for the time since this # message arrived. # mm_source.set_property_time("time", time.time()) mm_source.show() function1() function2() gtk.mainloop()

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• C#: How to force "calling" a method from the main thread by signaling in some way from another thread

  - by Fire-Dragon-DoL

  Sorry for long title, I don't know even the way on how to express the question I'm using a library which run a callback from a different context from the main thread (is a C Library), I created the callback in C# and when gets called I would like to just raise an event. However because I don't know what will be inside the event, I would like to find a way to invoke the method without the problem of locks and so on (otherwise the third party user will have to handle this inside the event, very ugly) Are there any way to do this? I can be totally on the wrong way but I'm thinking about winforms way to handle different threads (the .Invoke thing) Otherwise I can send a message to the message loop of the window, but I don't know a lot about message passing and if I can send "custom" messages like this Example: private uint lgLcdOnConfigureCB(int connection, System.IntPtr pContext) { OnConfigure(EventArgs.Empty); return 0U; } this callback is called from another program which I don't have control over, I would like to run OnConfigure method in the main thread (the one that handles my winform), how to do it? Or in other words, I would like to run OnConfigure without the need of thinking about locks

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• Rendering formatted text in a direct3d application

  - by Fire Lancer

  I need to render some formatted text (colours, different font sizes, underlines, bold, etc) however I'm not sure how to go about doing it. D3DXFont only allows text of a single font/size/weight/colour/etc to be rendered at once, and I cant see a practical way to "combine" multiple calls to ID3DXFont::DrawText to do such things... I looked around and there doesn't seem to be any existing libraries that do these things, but I have no idea how to implement such a text renderer, and I couldn't even find any documentation on how such a text render would work, only rendering simple fixed width, ASCII bitmap fonts which looking at it is probably an entirely different approach that is only suitable for rendering simple blocks of text where Unicode is not important. If there's no direct3d font renders capable of doing this, is there any other renderers (eg for use in rendering rich text in a normal window), and would rendering those to a texture in RAM, then uploading that to the video card to render onto the back buffer yield reasonable performance?

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• C++ Formatting like visual studio c# formatting

  - by Fire-Dragon-DoL

  I like the way Visual studio (2008) format C# code; unfortunately it seems it doesn't behave in the same way when writing C++ code. For example, when I write a code in this way: class Test { public: int x; Test() {this->x=20;} ~Test(){} }; in C# (ok this is C++ but you can understand what I mean), this part: Test() {this->x=20;} Will become Test() { this->x=20; } This is obviusly a stupid example, but there are a lot of things where putting brackets in correct position, indenting code and other things with my own hands becomes boring. I can obviusly change editor if you suggest me a good one for C++ code, I would like to find something with these features: Intellisense (like vs, at least similiar) Custom class coloring (in c# they are cyan, why are they black in c++?) Wordwrap (possibly) Documentation when you mouse over a method/variable Auto formatting (when you close a bracket like "}" in c# you'll get everything well formatted) obviusly I can find other features, but this is what is in my mind at the moment. Thanks for any suggestion

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• IE8 window.opener problems

  - by fire

  Having problems with IE8... I have a button that onclick fires the showImageBrowser() function. function showImageBrowser(params) { var open = window.open('http://localhost/admin/browse?'+params,'newwin','toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1,width=950,height=500'); if (!open) { alert('Could not open the image browser, please disable your popup blocker.'); } } Now in the image browser when you click on an image it calls this function: function selectFile(url, el) { window.opener.replaceImage('Test_Image', url); window.close(); } Which is calling the replaceImage() function in the parent window, as expeted. This is the code: function replaceImage(el, url) { $('#'+el).html('<a href="'+url+'" target="_blank" class="image">'+basename(url)+'</a>'); $("input[name='"+el+"']").val(url); } Now if you click on the original showImageBrowser() button for the second time, IE will bring up the window but this time it freezes for a few seconds and then you get the alert "Could not open the image browser, please disable your popup blocker." This works fine in Firefox (obviously) but not in IE. I haven't even tried it in IE7/6 because if it doesn't work in 8 then I know I'm going to have problems. Any advice?

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• Debugging a release only flash problem

  - by Fire Lancer

  I've got an Adobe Flash 10 program that freezes in certain cases, however only when running under a release version of the flash player. With the debug version, the application works fine. What are the best approaches to debugging such issues? I considered installing the release player on my computer and trying to set some kind of non-graphical method of output up (I guess there's some way to write a log file or similar?), however I see no way to have both the release and debug versions installed anyway :( . EDIT: Ok I managed to replace my version of flash player with the release version, and no freeze...so what I know so far is: Flash: Debug Release Vista 32: works works XP PRO 32: works* freeze I gave them the debug players I had to test this Hmm, seeming less and less like an error in my code and more like a bug in the player (10.0.45.2 in all cases)... At the very least id like to see the callstack at the point it freezes. Is there some way to do that without requiring them to install various bits and pieces, e.g. by letting flash write out a log.txt or something with a "trace" like function I can insert in the code in question? EDIT2: I just gave the swf to another person with XP 32bit, same results :(

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• Possible mem leak?

  - by LCD Fire

  I'm new to the concept so don't be hard on me. why doesn't this code produce a destructor call ? The names of the classes are self-explanatory. The SString will print a message in ~SString(). It only prints one destructor message. int main(int argc, TCHAR* argv[]) { smart_ptr<SString> smt(new SString("not lost")); new smart_ptr<SString>(new SString("but lost")); return 0; } Is this a memory leak? The impl. for smart_ptr is from here edited: //copy ctor smart_ptr(const smart_ptr<T>& ptrCopy) { m_AutoPtr = new T(ptrCopy.get()); } //overloading = operator smart_ptr<T>& operator=(smart_ptr<T>& ptrCopy) { if(m_AutoPtr) delete m_AutoPtr; m_AutoPtr = new T(*ptrCopy.get()); return *this; }

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• Visual studio does not gray out properties with a ReadOnlyAttribute(true)

  - by Fire-Dragon-DoL

  I know it's stupid but visual studio (2010) doesn't gray out my properties tagged with ReadOnlyAttribute, I can't edit their values (if I try to do it, simply return to the previous value), but they aren't grayed out, I think it's really boring this when using the editor Is there an option or an attribute that I'm forgetting? Thanks for any help Example 1: /// <summary> /// Inform if the LcdDisplay has been already initiated /// </summary> [Description("Inform if the LcdDisplay has been already initiated")] [DefaultValue(false)] [ReadOnly(true)] public bool Initialized { get; private set; } Initialized is not grayed out

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• Select all li's but not children

  - by fire

  I have this code: $li = $("li", this) Which is selecting all of the li's in my code. This works fine however I want $li to exclude the li's that are within a submenu. <ul id="navigation"> <li><a href="#">blah 1</a></li> <ul id="subnav"> <li><a href="#">sub 1</a></li> <li><a href="#">sub 2</a></li> <li><a href="#">sub 3</a></li> </ul> </li> <li><a href="#">blah 2</a></li> <li><a href="#">blah 3</a></li> <li><a href="#">blah 4</a></li> <li><a href="#">blah 5</a></li> </ul> So $li would only reference the blah's not the sub's. I thought it was something like: $li = $("li", this).parents() But this doesn't do what I want.

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• Reverse PInvoke and create a full unmanaged C# program

  - by Fire-Dragon-DoL

  I know this is a strange question but the idea is simple: I prefer C# syntax rather than C++: -Setters and getters directly inside a property -interfaces -foreach statement -possibility to declare an implicit cast operator other small things... What I really don't know is if is possible to import a c++ dll (expecially std libraries) in C# if I don't use any namespace (even System) The idea is just to write a program using everything that you will normally use in C++ (nothing from CLR so), even printf for example Thanks for any answer

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• Retrieve the full page HTML - jQuery

  - by fire

  I am trying to retrieve the full HTML of a page, so far I am using: $('*').html() Is there a better way (also this excludes the <html> tags at the top)?

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• svn track brand new code base

  - by Fire Crow

  I'm at a company, we keep recieviing new codebases from a third party vendor. we'd like to track the changes in subversion. is there a way to replace a branch with the new code and track the changes? currently we just delete all files in the branch, and then add the new files and commit. we'd like to track the files, but I havn't found a tool that will easily deal with all the .svn directories found in subfolders. does anyone know a tool that will replace an svn directory with a new branch and create the respective modify add and delete records as if the code base was organically modified?

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• Documenting preprocessor defines in Doxygen

  - by Fire Lancer

  Is it possible to document preprocessor defines in Doxygen? I expected to be able to do it just like a variable or function, however the Doxygen output appears to have "lost" the documentation for the define, and does not contain the define its self either. I tried the following /**My Preprocessor Macro.*/ #define TEST_DEFINE(x) (x*x) and /**@def TEST_DEFINE My Preprocessor Macro. */ #define TEST_DEFINE(x) (x*x) I also tried putting them within a group (tried defgroup, addtogroup and ingroup) rather than just at the "file scope" however that had no effect either (although other items in the group were documented as intended). I looked through the various Doxygen options, but couldn't see anything that would enable (or prevent) the documentation of defines.

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• jQuery find last input and append

  - by fire

  I am trying to append an image after the last input field in a div, any ideas as to why this won't work? $('<img src="img/loading.gif" id="loading_img" />').appendTo($(form).find('input:last'));

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