Credit Card Number Validation Using Mod10 (Modulus 10)

When someone submits a credit card number to your PHP Website, you can validate if the number has the correct format for each credit card company. The Modulus 10 calculation with a few checks can tell you which company issued the card, if the number is in the correct format, but not if there are [...]

Ultimate Game Chair Renegade Commercial

The new Renegade Gaming Chair has been released by the Ultimate Game Chair company in California. Check out the new commercial below, soon to air on TV. Ultimate Game Chairs totally rock and are becoming quite the gamer’s commodity. Video game chairs make the perfect gift for video gamers and video game enthusiasts. Get your [...]

Using JavaScript to Embed QuickTime Content

Apple provides a JavaScript utility to generate the required tags to embed QuickTime content in a web page. Using this utility greatly simplifies the necessary code to embed a movie, as it automatically supplies such information as the QuickTime Class ID, code base, and plugins page. This has two main advantages over typing the tags [...]

Setting Up GoDaddy Email Accounts

MX Record Configuration
Log on to your hosting provider or third-party domain name system manager.
Change your MX records to:
MX 0 = smtp.secureserver.net
MX 10 = mailstore1.secureserver.net

Domain-specific aliases are easier to remember:
CNAME mail.mydomain.com -> pop.secureserver.net or smtpout.secureserver.net
CNAME pop.mydomain.com -> pop.secureserver.net
CNAME smtp.mydomain.com -> smtpout.secureserver.net

POP (Incoming mail server)
Port: 110
Server: pop.secureserver.net
Username: your whole email address
SSL: Nope, that sucks unless you get [...]

Defining Image Resolution And Image Dimensions

For beginners in graphic design and computer graphics, the concepts of Image Resolution and Image Dimensions can be confusing. The notion that images have a resolution does not always correlate to the dimensions of the image at first, but the concepts are simple and the knowledge is quite necessary for graphic designers as well as [...]

Fundamental Security Issues For Developers Using Asynchronous Javascript and XML (AJAX)

Software developers using Asynchronous Javascript and XML (AJAX) techniques to jazz up corporate Web sites are failing to pay attention to some very fundamental security issues, security researchers warned at the Black Hat USA conference in Las Vegas on Wednesday. As a result, many companies that have rushed to AJAX-enable their sites may be dangerously [...]