Archive for the 'webreference' Category



This week you’re going to learn how to create a Color Picker similar to the one used in Photoshop, but entirely in JavaScript! By Mark Kahn. 0901

This week you’ll learn how to submit information through forms without reloading the page. We’ll begin with the form’s HTML, and then we’ll move onto adding the JavaScript for submitting a form with Ajax. By Jonathan Fenocchi. 0719

CSS 2.1 Properties

Cascading Style Sheets (CSS) are used for Web page layouts and aid in separating the document’s style from its structure. Used correctly, CSS can be a powerful Web design tool. This extensive reference covers all the properties of the current version. By Lee Underwood. 0616

This week we look at the Math object, a JavaScript object used to perform mathematical operations such as obtaining the values of predefined mathematical constants. It can also be used to generate random numbers. By Lee Underwood. 0609

An important difference between a managed language like PHP, and an unmanaged language like C is control over memory pointers. Here you’ll learn that traditional memory management functions are almost never used directly by the PHP source code. By Pearson Education. 0619

A common feature appearing on more and more Web sites is support for comment posting by users, which tends to appear at the bottom of a Web page or article. Our own Perl-based comment system is the focus of this article and you’ll learn how to use this on static Web pages. By Dan Ragle. 0712