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February 2010 Archive (28 posts)

Filtering on: CodeUnit | Accessories | Hardware | Programming | Projects | Software & Sites | Tech News | Tips, Tricks and Tutorials (clear)

SQL: Return all the Names when you have all the IDs | A silly one today, but worth recording here on my online memory bank because quite frankly, I forgot one could do it in the first place, and had to rely on Dave in the end to help me right. So here's the problem. I have all the ... (CodeUnit)
Remove all Listbox and Dropdown List Items with jQuery | I've said it once and I'll say it a million times over and again, the jQuery javascript library is simply fantastic. Today's little code snippet is going to look at removing all the options from a select dropdown list or listbox, on the fly and ... (CodeUnit)
jQuery: Select all options in a Multiple Select Listbox | Sometimes it is nice to present a multiple select listbox to a user with everything already selected. Handy if you're using listboxes as filter controls, and something that is, as per usual, quite easy to do using the magic that is the jQuery javascript library. Essentially what ... (Programming)
How to Disable a Button with jQuery | Disabling a button on a webpage using jQuery is remarkable simple - just set the selected button's disabled attribute to true, in other words, make use of a .attr('disabled',true) function call. This can then obviously be extended to disabling all buttons on a webpage using the ... (CodeUnit)
Fixing a Broken Windows Automatic Update in Windows XP | My old laptop (purchased from my old job when I left the University of Cape Town) is still sporting a pretty ancient copy of Windows XP and unfortunately thanks to the various policies and whatnot Commerce I.T. implements on their roll-out equipment, my particular version ... (CodeUnit)
PHP: How to add a Hour to the Current Time | Adding an hour to the current time turns out to be pretty easy thanks to the fantastic strtotime PHP function. For example, should we wish to grab the hour that follows on from the current hour, we can simply make use of the code sample at ... (CodeUnit)
Problem: Ubuntu's Totem Movie Player displaying in Grayscale | The other day I got a nasty surprise on my desktop Karmic Koala Ubuntu installation when all of a sudden, Ubuntu's default video player Totem Movie Player started showing all my videos in a nasty grayscale mode instead of their usual vibrant colourful selves. Now ... (CodeUnit)
IPCop: Prioritize Specific Port Traffic | At the office we share the same ADSL line for both general web surfing and VoIP, not the greatest situation to sit with of course, but if we have to, we have to. Of course, this does mean that should someone try to make or ... (CodeUnit)
Test Your Internet Connection's Ping, Jitter and Packet Loss | Sister product to the excellent web service, is a free to use broadband quality analyzer that acts as a troubleshooting tool which grades your connection on how well it is likely to deal with services like VoIP, streaming music and video and online ... (CodeUnit)
Photoshop: Convert Layer Styles in Layers | As any Adobe Photoshop user will tell you, the ability to apply layer styles like outer glow, colour overlay or drop shadow to any particular Photoshop layer is a fantastic and indispensible tool when it comes to making elements "pop" in any particular design. However, ... (CodeUnit)
Figure out Your Upload and Download Internet Connection Speed | How to figure out just how fast your current Internet connection really is. Well a great way of determining this is by making use of the fantastic online web service, brought to us by Ookla, which aims to measure three important keys which determine ... (CodeUnit)
Use Trash? Wordpress 2.9.2 Upgrade Time Then! | Do you make use of the nifty little trash feature recently introduced in Wordpress 2.9 that allows you to "delete" or "trash" posts to a recycle bin from which you can then choose to permanently delete or restore at a later date? Well if the answer ... (CodeUnit)
jQuery Across Domain AJAX Content Loads | While working with jQuery and performing AJAX-driven gets and general content loading, have you ever come across your scripts throwing the following error? permission denied: jquery, s.url, s.async); I annoyingly came across this error for the first time a couple of weeks back and after tracing ... (CodeUnit)
How to Convert a Webpage to a PDF | Saving a web page to a PDF file for later offline viewing has just become a whole lot simpler thanks to the excellent web service that aims to convert any URL you feed it into a downloadable PDF file. The application is particularly easy ... (CodeUnit)
Graphing with jQuery | Now while there are quite a number of excellent flash-based graphing libraries out there in the wild, it turns out that there aren't actually all that many pure old jQuery plugins to churn out your data in pretty images for all to see. So enter flot, ... (CodeUnit)
IPInfoDB: Find an IP or Domain's Physical Location | IPInfoDB is great free online service that aims to provide you with the geographical location of any IP address or Server Domain. Amongst the services available on the site is a simple web-based IP geolocation lookup, a full IP geolocation API that can return data ... (CodeUnit)
Open Source Photo Gallery for Your Website | The aptly named Gallery is a brilliant piece of well-support open source software, aimed at providing you with the best photo image image sharing tool to use on your own hosted website. All you need is a PHP-enabled website and an operational database, and you're ... (CodeUnit)
jQuery: How to Post a Form's data with Ajax | Ajax posts (or gets) using jQuery is a pretty simple affair, and so I'm not really going into that with this particular post. Rather, I want to highlight just how easily one can post all of a form's various values (housed in textboxes, text areas, selects ... (CodeUnit)
jQuery: How to check and uncheck a Checkbox | Checking and unchecking, or ticking and unticking if you prefer, checkboxes using jQuery is remarkably simple. If you think about it, the checked attribute for a standard HTML checkbox is actually a deprecated "checked = true" and by leaving it out in your checkbox declaration, you ... (CodeUnit)
AVG: Protect Your Computer for Free | We're well into the era where you don't go out to a bar/club without carrying a packet of condoms on you right? So why is it that so many people still feel like taking their brand spanking new PCs out on the untamed roads of ... (CodeUnit)
Create an Animated GIF from Multiple Images | Picasion is a great online free to use tool, that allows you to instantly generate animated gif files by simply uploading the pictures you want to appear in the resulting animation up to the site. There are a few options you can set to tweak ... (CodeUnit)
How to Customize Your WordPress Login Screen | You know that  rather boring black and white admin login screen that a standard WordPress installation presents to you on hitting the wp-admin link of your blog? Well now you can skin and customize the way it looks, exactly like you've always wanted to, perfect for ... (CodeUnit)
Joomla 1.5: How to set Your Personal Favicon | Favicons are a great way to personalize one's website, and getting a Joomla 1.5 website to display your custom favicon.ico file turns out to be a pretty simple affair. Note I did say Joomla 1.5, important because Joomla 1.0 actually has a different way of ... (CodeUnit)
Shortcut Keys for Tabbed Browsing | You seriously learn something new every day. I only just found out about keyboard shortcuts to enhance tabbed browsing, something that has been a feature in Firefox (and more recently Internet Explorer) for years already. And because I fear that there may still be people like ... (CodeUnit)
Using Google to Make Your jQuery Load Faster | Google is a wonderful creature. Once the champion of the meek and "Do No Evil" standard bearer of the world, it has long since grown into a huge moneymaking behemoth that seeks to control every aspect of our forages into the online world. However, no matter ... (CodeUnit)
jPlayer: Playing MP3 Audio with jQuery | Loading and playing an Ogg or MP3 file using jQuery has just become easy, thanks to the very customizable and functional jPlayer jQuery plugin, brainchild of Happyworm's Mark Boas and Mark Panaghiston. Simply put, jPlayer is a plugin that allows you to play and control audio ... (CodeUnit)
Restore Your Original Fonts in Windows XP or Vista | As a part-time designer, I love installing and using new fonts all the time. However, with the plethora of fonts available online, this can quickly become quite out of hand, and before you know it, you're sitting with a computer with well over 5000 fonts ... (CodeUnit)
Where does a Website Live with Flagfox? | Dave Garrett took over the existing but stalled project Flagfox and after an extensive rewrite, churned out Flagfox 3, one of the niftiest (if not one of the more pointless) Firefox add-ons currently available. Basically what this Firefox extension does is add a flag icon indicating ... (CodeUnit)
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