Adding Featured Images to Your Tweeted Blog Posts

By | April 17, 2016

So you’ve written a fantastic blog post and set the featured image, but all you’re seeing is bland text and a hyperlink when you tweet it. A picture adds a thousand words to your tweet, grabs your audience’s attention, and drives traffic to your website. This is a quick guide that will show you how… Read More »

Why is There a  in my MySQL Database?

By | February 4, 2016

Data submitted to a database via AJAX or other means sometimes includes a non-breaking space ( ). How this entity is displayed depends on the character encoding of the database and its tables. Using the default Latin1 encoding, a non-breaking space is displayed as this little funny character right here -> Â To have it displayed… Read More »

Designing HTML Tables for Mobile Devices

By | February 4, 2016

If you have an HTML table with multiple columns it likely doesn’t render very nicely on a small smartphone. One way to solve this problem is to hide lower priority columns when the table is viewed from a mobile device. First, create a new class in your CSS file, under the @media tag. For example… Read More »

Child Themes to Make Your WordPress Customizations Permanent

By | January 25, 2016

So you’ve made some awesome tweaks to your WordPress theme, but then you go ahead and update it with the latest version from the author and… All your brilliant customizations have been lost! If you have made customizations directly to a WordPress theme, they will be wiped out whenever you install an update from the… Read More »

Open Source Gaming on the Raspberry Pi

By | January 18, 2016

The Raspberry Pi is an inexpensive computer about the size of a credit card that was designed to promote the teaching of computer science. In the spirit of openness, this post focuses on open source games whose code can be studied, analyzed, customized and perhaps even improved upon, by anyone. I’ll start off by explaining… Read More »

Make HTML Table Columns Sortable with jQuery Tablesorter Plugin

By | January 12, 2016

In this post you will learn how to use the freely available Tablesorter jQuery plugin, which allows you to sort HTML table columns alphanumerically by clicking the column header. If you want your users to be able to sort tables and save the order, check out this post instead. Setup Tablesorter Make sure you have… Read More »

Reorder HTML Tables using jQuery UI and Save to MySQL

By | January 8, 2016

How do we allow users to reorder the rows of an HTML table and then save those changes back to a table in a MySQL database? This post will explain how to do it in two steps: Enable table drag and drop functionality with jQuery UI Write any changes the user makes back to the… Read More »

Drupal Installation and Troubleshooting

By | January 1, 2016

Drupal is a free and open-source content-management framework written in PHP and distributed under the GNU General Public License. In this post, you will learn how to install Drupal on a LAMP Ubuntu server. Installation Download the latest stable version of Drupal from their website Copy the downloaded file to the /var/www/html directory of your… Read More »

Setup HP 4500 Wireless Printer in Linux Mint

By | December 14, 2015

This post explains how to setup a wireless HP printer (specifically the HP Envy 4500) in Linux using the hp-setup program. The hp-setup program comes pre-installed in Ubuntu and Mint Linux. Printer Network Setup Follow the instructions that came with your printer to connect it to your wireless network. Print a setup page to get… Read More »

Recording a Macro in OpenOffice

By | December 14, 2015

Repeating tasks in OpenOffice Calc, or any other spreadsheet application, can be a tedious process. For example, if you want to sort a group of cells based on a custom order, you would have to do the following: Select a range of rows and columns Click Data Click Sort Select key #1 Click the options… Read More »