This how-to will show you how to create a JavaScript-enabled form that checks whether a user has filled in the form correctly before it’s sent to the server. This is called form validation. First we’ll explain why form validation is a useful thing, and then build up a simple example form, explaining things as we [...]

You can find the some of the best Wordpress Tricks to Make your theme even better here. For further tricks you can see the original post here. I have found some of the tricks are better so they are listing below for you:
How to Disable Commenting on Posts Older Than 1 Month
A great way [...]

A while ago I was looking around for how to make my own comments a different color on my blog. Most of the advice was along the lines of “Add code to check if the commenter’s email is the same as the email address of the blog’s author.” Can you spot the flaw in that [...]

I wanted to show the subcategories for a given category on it’s category page in the sidebar, but somehow the code for this wasn’t readily available. Basically you need to check whether there are any children, and if there are, list the categories with the current category as a parent or grandparent. The following code [...]

Understanding Digital Camera Sensors
A digital camera uses a sensor array of millions of tiny pixels in order to produce the final image. When you press your camera’s shutter button and the exposure begins, each of these pixels has a “photosite” which is uncovered to collect and store photons in a cavity. Once the exposure finishes, [...]