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• E-Commerce Website

  - by haargott

  I am planning to create an e-commerce website for users to buy products and services. In this website I want users to register and also participate in something like a browser game, where every user may receive some questions which they have to answer. For each question they successfully answered, they receive points and the number of collected points will decide on which rank they are. Edit 2 Currently I am considering using only HTML, CSS, JavaScript, PHP, SQL to design this e-commerce website. Together with this I was thinking about learning jQuery as it may help me, but I am not sure if I should code everything specifically by myself or just use the library to make it faster. 1) Could you tell me if those languages are sufficient enough for creating such a website described? 2) Could you tell me what kind of free software tools and frameworks are most appropriate to use when creating this e-commerce website?

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• Mouse click firing twice

  - by Luke

  I have recently switched to XUbuntu (14.04) and I have noticed that sometimes a mouse click is fired twice. E.g. I CTRL click a link and two tabs with the same content are opened in my browser. It's not behaviour I can reproduce consistently and seems to be random (to me). I also don't know of a good way to inspect the behaviour properly for debugging purposes. I have checked the double click time setting but this doesn't seem to have any impact on this. I also run XUbuntu (13.10) in a VM on my MacBook Air and this behaviour seems to absent there. At this point in time I can't really tell if this is related to the distribution or the fact that it runs in a VM. Any insights greatly appreciated.

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• Image caching when rendering the same images on different pages

  - by HelpNeeder

  I'm told to think about caching of images that will be displayed on the page. The images will be repeated throughout the website on different pages and I'm told to figure out the best way to cache these images. There could be few to dozen of images on single page. Here's few questions: Will browser caching work to display the same images across different web pages? Should I rather store images in stringified form in a memory instead, using JavaScript arrays? Store them on hard drive using 'localStorage'? What would be easiest yet best option for this? Are there any other alternatives? How to force cache? Any other information would be greatly appreciated...

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• debian (stable), google chrome, sencha and tranparency [closed]

  - by Kim Alders

  I am a bit unsure where to post this, but i guess it should be here, as it has to do with rendering in a browser. We have a sencha touch 1.1 application running in Google Chrome. On mij own computer (ubuntu) there are no problems. On the touch screen attached to a computer running debian-OS, transparency is shown as semi-transparent. It happens on sliders. Sliders have a button on them. This button is rendered bij sencha with CSS. It is NOT an image. Anyone has any idea how to get it 'nice' on debian too

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• Ubuntu One isn't syncing in Windows 7

  - by tuxtu

  Ubuntu One was working just fine in friend's computer on Windows 7. Problem is that, suddenly it has stopped syncing. I want to share some observation regarding this problem. Hope this could be helpful to solve the problem. If I upload any file directly on web (using browser), the amount of file size (KB/GB) changed in both places, Web dashboard and Ubuntu One control panel on Windows 7, but I can't find the file on PC. "File sync in progress" hangs on the U1 control panel on windows for indefinite time. If I keep any file in the U1 synced folder, that's not available on the PC and the total amount of file size isn't changed anywhere. "File sync in progress" dialogue is always there, since the starting of the PC. User using the PC with administrative previlage. Hope this problem will be solved quickly.

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• Is there a COMPLETE tutorial for upgrading for dummies?

  - by Windwood Trader

  I have tried upgrading in the past with zero success doing a backup of stuff and futilely attempting to enter my stuff into the new version. My email accounts and folders, my bookmarks and web browser info and of course my photos. In the past I have received messages that the back up files were done using version XXX and cannot be read by the new system, as an example. I need a hand-holding tutorial to go from 11.04 to 12.10. What are the actual step by step mechanics? Frustrated Non-Geek

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• Internet connection crashes while wifi / lan stay connected

  - by pirad

  I am connected to a router by wifi or lan. But every few moments (sometimes seconds, sometimes half an hour) my connection to the internet breaks down. So in one moment I can surf with my firefox and have ping times of 20 ms (wifi) to the google server. And in the next moment I can't open any pages in any browser and the ping shows no new messages first and then "Destination Host Unreachable". This is especially odd as another computer or my smart phone stays connected at the same time to the same network and seems to notice nothing. So I have a problem independend of wifi or lan drivers but with something else. Where should I look for logs that could tell me more information? I can't find some in syslog. Just if I reconnect to the router (wich works for another few moments) there are a lot of informations. But everythin is okay then.

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• ubuntu 14.04LTS flickering

  - by user292609

  when I start the computer, makes a big high pitch sound and the only thing I can see on the screen is "[[23" written everywhere . I have to start it always through the recovery mode. Ubuntu desktop screen does not flick, but every window that can maximmize and minimize does it like crazy. Like firefox browser, terminal, vlc.. I have a Lap top Acer Aspire One with AMD/ATI graphic card. I read many forums about flickering screen and I try many things , but I still have the problem. I am very new in Ubuntu. Please help

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• Navigation for ASP.NET Web Forms project published on codeplex

  Navigation for ASP.NET Web Forms manages movement and data passing between aspx Pages in a unit testable manner. There is no Client-side logic, so it works in all browsers, and no Server-side cache, so it works with the browser back button.Features include loosely coupled Pages, typed data passing, empty code-behinds, context-sensitive bread crumb trail, ASP.NET Data binding integration, automatic ASP.NET Ajax history navigation and many more.The source code, binaries and comprehensive documentation...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• La Release Candidate de Firefox 4 est disponible, plus fiable et performante que les moutures précédentes

  La Release Candidate de Firefox 4 est disponible, en faudra-t-il douze avant la version finale ? Mise à jour du 10.03.2011 par Katleen Ca y est ! Après un travail acharné et pas moins de 12 versions bêtas et 7000 bogues corrigés, la Fondation Mozilla vient de sortir la première Release Candidate de son navigateur. Firefox 4 RC1 est donc parmi nous, et est présenté comme un logiciel stable et sécurisé. Sans oublier les performances, dont Mozilla dit qu'elles seront remarquablement réactives et puissantes, comparativement aux moutures précédentes du browser. Cette version quasi-finale est disponible en 80 langues (dont le français), et corrige quelques 673 bogues que l'on trouvait encore...

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• Unity mouse input not working in webplayer build

  - by Califer

  I have a button script with the following code void OnMouseDown() { animation.Play("button-squish"); enlarged = true; audio.PlayOneShot(buttonSound); } void OnMouseUpAsButton() { if (enlarged) { SelectThisButton(); enlarged = false; animation.Play("button-return"); } } void OnMouseExit() { if (enlarged) { enlarged = false; animation.Play("button-return"); } } It works great in the editor, but when I made a build and tested it in Chrome none of the buttons had any response. Further testing revealed that it did work in Firefox. Rather than telling people to change their browser if they want to play, I want to make the button code work. How else can I get the buttons to know when they're being pressed if the built-in stuff isn't working?

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• How to enjoy Firefox with their lot&rsquo;s of version.

  - by anirudha

  many developer want to use many version of a application. Firefox have not facility to stand alone installation but here is a trick to enjoy their nightly and stable version both. make a folder anywhere in your system. make two folder the name depend on your choice. in first install the Firefox Nightly and second install the current stable version 3.6.12 now the application already add to your start menu otherwise add them manually. now you can use both version nightly and stable. if you deug your web application in IDE such as visual studio or other then they force to open the default browser set in your system they open the version who you use last time. if you use last time nightly then they open your web-application in nightly otherwise in current stable version.

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• Sign E-Business Suite JAR Files Now

  - by Steven Chan (Oracle Development)

  Oracle E-Business Suite uses Java, notably for running Forms-based content via the Java Runtime Environment (JRE) browser plug-in.  The default security settings for the JRE plug-in are expected to become more stringent over time.  To prepare for upcoming changes to Java security, all EBS 11i, 12.0, 12.1, and 12.2 system administrators must follow the procedures documented here: Enhanced Signing of Oracle E-Business Suite JAR Files (Note 1591073.1 ) More information about Java security is available here: Security of the Java Platform Getting help If you have questions about Java Security, please log a Service Request with Java Support. If you need assistance with the steps for signing EBS JAR files, please log a Service Request against the "Oracle Applications Technology Stack (TXK)" > "Java."

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• Is there an open source solution that I can host on a web server that will allow users to anonymously upload a file to me?

  - by mjn12

  I'm looking for some kind of web application I can host on my Linux web server that will allow users to upload files of arbitrary size to me from their browser without requiring them to log in. Ideally this application would allow me to generate a link to my website that allowed for a one-time use upload. It might contain a unique, random key that was only good for that session. I could email them the link, they click it and are taken to a page where they can upload their file to me. I'm mainly targeting friends and family that need to send me files that are too large for email. I don't want to require them to install anything (dropbox), sign up and log in, etc. I'm definitely not teaching them to use FTP. This wouldn't be a difficult project for me to roll on my own but I'd like to take something off the shelf if it is possible. Does anything like this exist that my google-foo isn't turning up?

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• SEO: Firefox addon/plugin to see Google results with a position number?

  - by Marco Demaio

  Do you know a Firefox addon that adds postion number to Google/Yahoo results. When I do SEO report for www.some-site.com by keyphrase "some-keyphrase" I usually show results in blocks of 100 results per page. Then uisng browser find box I search for "some-site.com", if found in page I see its position, but I have to count by hand the number of results before (or after) it to know the exact position number. It would be handful a simple addon that adds a number positioning before each result like: 1. Result blah blah Snippet... url 2. Result blah blah Snippet... url etc.

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• 3d js map rendering

  - by gotha

  In the past I've done a 2D tile map using HTML, CSS and Javascript. Now I have the task of creating a 3D version using the same technologies - think of it like a space map where all planets have x/y/z positions. Currently, I have no idea to do this. Is there an existing library or something I can modify to do my job? If not, what method of rendering the map should I use? It needs to be as browser independent as possible, so I can't use webgl, flash or canvas. I'm considering plain JS & HTML or SVG (using Raphael for compatibility).

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• Ubuntu frozen on boot screen; boot repair fails due to X11 and gtk

  - by anandsun

  I have a year-old HP Pavilion dv6 with Intel i7 processors and graphics card. I had Windows 7 but last week I dual booted Ubuntu. It was working fine until today. I did the following things: Updated Gnome and installed Gnome tweak tool Uninstalled Chromium browser Uninstalled Google Chrome Moved jdk and jre folders from ~/ to /bin using sudo Moved Adobe folder from ~/ to /bin using sudo Then I restarted. Ubuntu froze for half an hour on the purple boot screen. Something I did must have broken it. So, I hit Ctrl + Alt + F1 and managed to log in through the command line. From there, I ran sudo apt-get update and sudo apt-get upgrade. I also updated grub. I also installed boot-repair. However, I cannot run boot-repair, because I keep getting the following errors: Autolaunch error: X11 initialization failed RuntimeError: Gtk couldn't be initialized.

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• Firefox installed on my ubuntu 12.04 machine but I am unable to connect to the internet(Nobody know???)

  - by Chella

  every other browser installed is working fine..! except this Firefox. what are the things that I need to check, to make firefox work on my computer. I am a newbie for ubuntu. I tried googling not got enough and clear information. Please help me. Thanks in advance..! This is the error that I am getting just before launching of the application..! Could not initialize the application's security component. The most likely cause is problems with files in your application's profile directory. Please check that this directory has no read/write restrictions and your hard disk is not full or close to full. It is recommended that you exit the application and fix the problem. If you continue to use this session, you might see incorrect application behaviour when accessing security features.

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• Alternative Web model

  - by Above The Gods

  One of the problems web apps have against native apps, especially on the mobile front, is the constant need to re-download each web page on request. Ultimately, this leads to slower performance. Why if web apps only download new pages if they're actually needed, not because they're simply requested. For example: perhaps the server can store a web page version in a cookie. Every slight change to the page on the server-side changes the version number. Now instead of the browser requesting a new page each time, why not just check the version number and have the server send the page if they're different? If the page similar, the user can just use a cached page. I'm sure browsers doesn't necessarily have to change to accommodate changes to this, correct?

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• Hulu desktop stopped working on my Dell

  - by jwdinkc

  After last weeks flash update Hulu desktop no longer works on my Dell laptop though it still works on my HP Desktop. Here's what CLI tells me on the Dell: Inspiron-1564:~$ huludesktop Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory I tried: sudo apt-get install libvdpau_nvidia.so but got E: Unable to locate package libvdpau_nvidia.so and E: Couldn't find any package by regex 'libvdpau_nvidia.so' Hulu does work through the browser and through XBMC. XBMC just doesn't seem to match the video quality of the Hulu Desktop. I don't really know why a nvidia.so is needed for my Intel graphics that comes on Dell Insiron 1564's. anyway. So, do you guys have a solution?

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• What would you call the concept of CofeeScript or Sass to be?

  - by MaG3Stican

  There is this rising trend with web development of making new pseudo languages to extend the functionality of JavaScript, CSS and HTML given that those are static and their metamorphosis or evolution is painfully slow due to the variety of browser providers. So I am currently having a concept dilema on how to categorize them for a book I was made to write by my employer as no one seems to have a name for these pseudo languages. A tiny list of them : JavaScript: LiveScript, Metalua, Uberscript, EmberScript. HTML: Razor, Java Scriptlets. CSS : LESS, Sass. I believe the concept of these pseudo languages and a language or an extension of a language is quite different. First these languages do not extend any functionality currently existing on HTML or CSS or JavaScript, they simply work around it. And also they do not "compile" to an intermediate language, they are merely 1-1 translated to something that only then can be compiled. What would you call them?

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• Is it practically useful to decline GUI for a newbie in Ubuntu?

  - by Kifsif

  My Ubuntu is 12.04. I have just started learning Linux and Ubuntu in particular. To remember commands quicker, I'd like to decline GUI. But there are some problems. I don't know where installed programs are to launch them. For example, I have a pdf file. I know that there is a program to view such files. Should it be the case of GUI, I would just click on the pdf-file, and have a look that I use Document Viewer 3.4.0. Then I would like to launch Firefox Web Browser. Even if I know it is installed, how to find the file to be launched using just CLI is a mystery to me. Could you suggest me anything.

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• Feasible to send marketing emails as an image?

  - by Anonymous -

  Is it feasible to send marketing emails entirely as images - apart from a link at the top, giving the option for the recipient to view the email online (in their browser) and one at the footer to unsubscribe from our mailing list? Anyone who's coded a html email template before knows how much of a pain it is to end up with the final design that displays 'properly' (rarely does it display the same in all clients) and doesn't break. I understand there's the possibility of people simply ignoring the email altogether should their email clients be set not to automatically download images, but many of our email primarily feature images anyway. Thoughts?

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• Is sudo dd taking too long to wipe hard drive?

  - by Adam133718

  I have a 200gb HDD which I removed from a macbook due to several corrupt files in startup. One thing led to another and I decided that I needed to format the drive. I used the command sudo dd if=/dev/zero of=/dev/sdb which is supposed to wipe everything off of the hard drive. It is my understanding that the command writes 0's over every bit on the drive, which I would imagine must take a while. The process has been going for about 18 hours now. I can use other functions of operating system like the web browser and I can even use another terminal window, so I know the system is not frozen. Should I restart the process or let it continue on? Any advice will help. Thanks. By the way, I already noticed a post similar to this that was previously answered though the user was not using the same command as I was.

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• Xubuntu and other Debian based distros slow

  - by William V

  I have a Compaq Presario SR1950NX desktop computer with the AMD64 3800+ processor and 1GB ram and it seems that Ubunutu, Xubuntu and Lubuntu are all laggy. Things seem to be slow such as clicking on menus and opening programs and the UI renders in peices. When using the browser the system slows down considerably. I ran the TOP command and I do notice that xorg hits 30 to 40 percent cpu when running the browsers. I have tried these distros on a spare P4 machine and it is even worse. As long as I don't have a several things open at one time I can manage to get around although sluggishly. I also notice that I can't get debian based distros to install in 64bit (crtc6 failure) only in 32bit. Can anyone tell me what is it that I might be doing wrong? I have an integrated Nvidia card and have tried several of the recommended drivers which sometimes result in no boot screen upon reboot. Thanks

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