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• Display image at point using jQuery

  - by Chris

  I have an image with a click event handler that captures the location where you clicked. $("#image").click(function(e) { var x = e.pageX - $(this).offset().left; var y = e.pageY - $(this).offset().top; }); I want it so that when the image is clicked an image appears at that location on top of the image. How do I do this?

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• How to model and handle presentation DTO's to abstract from complicated domain model?

  - by arrages

  Hi I am developing an application that needs to work with a complex domain model using Hibernate. This application uses Spring MVC and using the domain objects in the presentation layer is very messy so I think I should use DTO's that go to and from my service layer so that these match what I need in my views. Now lets assume I have a CarLease entity whose properties are not simple java primitives but it's composed with other entities like Make, Model, etc public class CarLease { private Make make; Private Model model; . . . } most properties are in this fashion and they are selectable using drop down selects on the jsp view, each will post back an ID to the controller. Now considering some standard use cases: create, edit, display How would you go about modeling the presentation DTO's to be used as form backing objects and communication between presentation and service layers?? Would you create a different DTO for each case (create, edit, display), would you make DTO's for the complex attributes? if so where would you translate the ID to entity? how and where would you handle validation, DTO/Domain assembly, what would you return from service layer methods? (create, edit, get) As you can see, I now I will benefit by separating my view from the domain objects (very complex with lots of stuff I don't need.) but I am having a hard time finding any real world examples and best practices for this. I need some architecture guidance from top to bottom, please keep in mind I will use Spring MVC in case that may leverage on your anwser. thanks in advance.

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• jquery asp.net button visibility

  - by Pratik

  There is some code like this : if ( bValid ) { $( this ).dialog( "close" ); $("#btnExcel_Click").show(); } and .aspx look like : <form id="form1" runat="server"> <input id="inpHide" type="hidden" runat="server" /> <asp:Button ID="btnExcel" runat="server" Text="Excel" AccessKey="E" BorderWidth="0px" OnClick="btnExcel_Click" ToolTip="Excel" Visible="false" /> </form> `bValid` is some part of code Why this doesnt work ? What can be done to work it out. To make button visisble ?

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• What is the best way to deal with IE compatibility issue?

  - by Starx

  I think everything agrees with me here, but IE is the most incompatible browser out there. I deal with ie's incompatibility using different particular css files for each version, to display it correctly? Is there a better way?

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• Expose jar resources over web

  - by Heavy Bytes

  I have a web-service (with Spring-WS). I have a jar with several schemas (schema1.xsd, schema2.xsd and schema3.xsd) which I include in my web service. Is there a way to expose the schemas from the jar through a servlet somehow in my web-service wep app? My Spring MessageDispatcherServlet is mapped to /ws/ I would like my schemas to be exposed to /schemas/schema1.xsd /schemas/schema2.xsd and so on. I have an idea how to do it with a servlet, but it's too verbose and there has to be a nicer way. The way I am thinking is have a servlet filter and everything that hits /schemas/ check if it is in my list of allowed resources and display it. This has to be a server agnostic solution. (For instance http://tuckey.org/urlrewrite/ will not work). Thanks.

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• Replace a DIV with another using effect and set cookie

  - by Alex

  Hi. I've got some complicated requirements and wondered if there's a way to accomplish this via jQuery: User comes to a web page for the first time today and we show DIV_1. After 30 seconds, we dissolve DIV_1 to DIV_2. We set a cookie on the user's machine that expires when s/he returns tomorrow. If the same user returns today, we only show DIV_2. Tomorrow, we repeat the process: The user will see DIV_1 and then it dissolves to DIV_2. How do you accomplish this via jQuery? Thank you.

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• different for lusses java

  - by Ayrton

  Hi I'm having some difficulties with the following problem: I'm making a little game where you're at a specific spot and each spot has each some possible directions. The available directions are N(ord),E(ast),S,W . I use the function getPosDirections to get the possible directions of that spot. The function returns the directions into an ArrayList e.g. for spot J3: [E,W] Now the game goes like this: 2 dices will be rolled so you get a number between 2 and 12, this number represents the number of steps you can make. What I want is an ArrayList of all the possible routes e.g.: I throw 3 and I'm currently at spot J3: [[E,N,E],[E,N,S],[E,S,E],[E,S,S],[W,N,E],[W,N,S],[W,S,E],[W,S,S]] How would obtain the last mentioned Array(list) Thanks in advance

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• opening site from pc on mobile

  - by PHPgenerator

  I made a web application and I can connect to it some times from another pc on the same wireless network but if i tried to open it on the browser of N95 mobile it gives me alert of "system error" is any one could make suggestions or tell me why I turned firewall off I use static IP for my pc

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• webprogramming -what is the learning pathway ?

  - by Bunny Rabbit

  i have some knowledge of css,jQuery,Grails,django,servlets and jsp still i can't see me designing good professional looking websites .what am lacking ? should i start learning jQUery ui ,should i get into adobe products like flash i am pretty confused. i am pretty bad in the userinterface part,

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• Collision detection in Java game?

  - by Chetan

  I am developing a game in which I have the problem of collision detection of moving images. The game has a spaceship and number of asteroids (obstacles). I want to detect the collision between them. How can I do this?

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• IE sends multiple cookies with same name?

  - by akach

  I have a strange bug that occurs in IE7/XP and IE8/Vista on my website. IE sends two cookies named PHPSESSID. How to reproduce: Clear cookies in IE (not necessary if you never visited unisender.com). Visit unisender.com (exactly without www to reproduce!) and it will redirect to www.unisender.com Login with any valid username and password (I've registered username testmsdn with password testmsdn - feel free to use for testing) Run your favourite capture-the-traffic program (I prefer wireshark) Now click any menu link (e.g. "messages") Look at captured traffic - you will see that IE sends double PHPSESSID cookie (and you are logged out after click because of this). It seems like first PHPSESSID is from unisender.com and second from www.unisender.com. Captured sample: GET /en/letter_list HTTP/1.1 Accept: image/gif, image/jpeg, image/pjpeg, application/x-ms-application, application/vnd.ms-xpsdocument, application/xaml+xml, application/x-ms-xbap, application/x-shockwave-flash, / Referer: http://www.unisender.com/en/intro Accept-Language: ru User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; SLCC1; .NET CLR 2.0.50727; .NET CLR 3.5.21022; .NET CLR 3.5.30729; FDM; .NET CLR 3.0.30729) Accept-Encoding: gzip, deflate Host: www.unisender.com Connection: Keep-Alive Cookie: authchallenge=3a9cfcfc9fe33822e3e21d75c8a3d3e4; PHPSESSID=14ea1cb133632951592397c86eaf037e; us_reg_ref=unknown; us_reg_url=http%3A%2F%2Funisender.com%2F; __utma=1.778517853.1271204400.1271204400.1271204400.1; __utmb=1.3.10.1271204400; __utmc=1; __utmz=1.1271204400.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); PHPSESSID=65e110aeb995a66b9dc8da5656c7a3da; last_login_name=testmsdn I've tried to use session and non-session cookies, tried to use .unisender.com instead of unisender.com for cookie - nothing helps. I suppose there should not be cookies with same name. Am I right? Is it a bug in IE? If it's a bug then is there a workaround? Or am I wrong and it's an expected behavior?

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• How to introduce 'Remember me' checkbox to existing project with Spring Security?

  - by Roman

  I have a pretty standard project with Spring Security. I have a login form and I need to add 'Remember me' checkbox there. How can I do that? I can provide some code if necessary.

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• What is the easiest way that you can fathom to draw solid black across an OpenGL display temporarily

  - by Lela Dax

  As in the title

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• What to do with lookup entities selected from drop down select ? How to send them to the service lay

  - by arrages

  I am developing a spring mvc based application. I have a simple pojo form object, the problem is that many properties will be taked from drop down lists that are populated from lookup entities, so I return the entity ID to the form object. public NewCarRequestForm { private makeId; // this are selected from a drop down. private modelId; } Should I just send this lookup entity ID to the service layer? or should I validated that this ID is correct (Somebody can send any random ID through the request) before and how? Now there is a problem if I want to validated something based on some property of the lookup entity. Do I perform a database lookup of the entity just to perform the validation? thanks.

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• How to change language/region in a YQL search.spelling/search.suggestion query?

  - by Francisco Noriega

  Hello, I'm trying to use YQL's spelling and search suggestions, but as much as I try I cant find a way to change the language/region for the query, how is this done? I want to look for spelling/suggestions in spanish/mexico ("es-MX") I'm pretty happy with the results I get for queries in English, but when looking in Spanish I get no results: select * from search.suggest where query="dolor de cabeza" <?xml version="1.0" encoding="UTF-8"?> <query xmlns:yahoo="http://www.yahooapis.com/v1/base.rng" yahoo:count="0" yahoo:created="2010-11-22T17:41:13Z" yahoo:lang="en-US"> <results/> </query> I've looked around for a way to change yahoo:lang="en-US" to yahoo:lang="es-MX" but I cant find andy documentation about it. Thanks!

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• Questions about HTML5 audio

  - by Nimbuz

  <audio src="http://upload.wikimedia.org/wikipedia/commons/8/82/Riddle_song.ogg"></audio> <ul id="lyrics"> <li>line 1</li> <li>line 2</li> <li>line 3</li> <li>and so on...</li> </ul><!-- end #lyrics --> So I want to: Highlight (change color or background) of the line that is being played. Save current time to a cookie and resume on next visit. I'm not sure if either of these are possible in HTML5, but even in Flash or other technology, I'd like to know if and how it is possible. I understand #2 is asking too much, but #1 is really important. So almost similar to this: http://randallagordon.com/jaraoke/ but all the lines are visible, just the current line is highlighted. Many thanks for your help.

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• Parent Thread exiting before Child Threads [python]

  - by crgwbr

  I'm using Python in a webapp (CGI for testing, FastCGI for production) that needs to send an occasional email (when a user registers or something else important happens). Since communicating with an SMTP server takes a long time, I'd like to spawn a thread for the mail function so that the rest of the app can finish up the request without waiting for the email to finish sending. I tried using thread.start_new(func, (args)), but the Parent return's and exits before the sending is complete, thereby killing the sending process before it does anything useful. Is there anyway to keep the process alive long enough for the child process to finish?

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• Is there any interesting jobs available for C++ other than device drivers / firmwares developments?

  - by AKN

  Hi, Initially C was used for designing drivers / firmwares and all that. Right now this has been taken over by C++. Ok. Let me not deviate this question. I would like to know where else C++ is being used and how you see its future? You can also list out pros and cons of C++ compared to other languages. Would like to see a healthy and meaningful discussion on C++ current usage and its future?! Cheers! AKN

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• wantto learn something new, help me decide..zend, python, ruby or ?

  - by dolomite

  Hello everyone I have been coding procedural php for a while and I feel I got a pretty good hang of it. I feel like learning something new. Any ideas on what is good/hot to know? I have read some about zend mvc and it seems interesting, but im not sure.. I feel like procedural php is so unorganized and hard to debug when the project grows big. help me out thanks

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• 'Software is never finished. It is only abandoned!, is it so?

  - by LittleBoy

  One of my friend says, 'Software is never finished. It is only abandoned!'. But I don't get it right. Why is it not finished, but abandoned? Can anyone justify this?

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• Creating own shortcuts: Problem in safari

  - by Thariama

  I have a web application which needs to be called from firefox and safari. Several shortcuts will let the user edit stuff and do other actions. I already implemented my shortcuts and they work great in firefox but not in safari. I can't for example do anything on alt+return - its not getting catched. Is there an easy way to overwrite built-in shortcuts in safari? A way to make alt+return work with safari?

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• Android game goes blank after pressing home and restarting

  - by sirconnorstack

  I am making an Android game with an Activity called Game, a SurfaceView called GameView and a Thread called GameThread. The Game's onCreate(), I make a new GameView, which makes a new GameThread, where all the game logic and canvas drawing is carried out. However, I'm having some lifecycle difficulties. When I press back and restart it, it works fine, but when I press home and restart it, all I see is a blank screen. Here are the GameView's onSurfaceCreated() and onSurfaceDestroyed(): @Override public void surfaceCreated(SurfaceHolder holder) { mThread.mRunning = true; mThread.mWidth = getWidth(); if(mThread.mWidth > 550) mThread.mWidth = 550; mThread.mHeight = getHeight(); try { mThread.start(); } catch(IllegalThreadStateException e) { } } @Override public void surfaceDestroyed(SurfaceHolder holder) { // Wait for the secondary thread to end before finishing boolean retry = true; mThread.mRunning = false; while (retry) { try { mThread.join(); retry = false; } catch (InterruptedException e) { } } }

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• As an iPad/iPhone/iPod touch developer what can't I do on stackoverflow?

  - by Nissan Fan

  Due to the developer agreement with Apple for iPhone/iPad/iPod touch developers, what can't I do on StackOverflow?

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• Uniquely identifying mobile devices over a network for webforms

  - by Eric

  I'm designing a system for mobile devices that can be assigned only to one job at a time. So I need to be able to know which mobile device is being used by accessing it's own unique static IP address or its device ID. I don't want to assign an ID myself for every machine that comes in which is why a static IP would work great. However, in trying to retrieve the client ip address I'm retrieving the wireless router's ip or some other ip which is not the mobile device's ip. I want to store that ip in a table and control which jobs are assigned to it. How can I accomplish this? I've tried the following but I'm getting the wireless ip: var hostEntry = Dns.GetHostEntry(Dns.GetHostName()); var ip = ( from addr in hostEntry.AddressList where addr.AddressFamily.ToString() == "InterNetwork" select addr.ToString() ).FirstOrDefault(); I'd rather not set a cookie if there exists a better alternative. TIA!

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• Are there any standard one-click install/lauch mechanisms for the web?

  - by Niklas Bäckman

  The reason I ask is mostly due to how Google Chrome installation works once you click the "Accept and install" button from Firefox. After you click the installation is started directly and when it's completed Chrome itself starts up. Firefox does not show any "Save" or "Confirm" dialogs after you click the Install button (on Chrome install web page). Now, is this standard behaviour? Or might it be due to having an old version of Chrome already on the computer (Note: The new version was still installed from Firefox). Seems a bit risky to me, all you have to do is fool the user to click something and then you can do whatever you want on his machine, or? Personally I thought things like this only worked with IE/ActiveX.

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