Introduction to HTML5 Canvas
The canvas element is a webpage container for graphics. You can use JavaScript to draw graphics within the canvas element. Learn how to draw lines, rectangles, circles, and curves, code included. More ...
Easy Slide Show Code With Linked Slides
A slide show sequences through pictures of products. Wouldn't it be nice if the user could stop the slide show, go back to the previous picture, click on the picture to get detailed information about the product? More ...
A JavaScript Function That Returns a Function
Its a fad now in JavaScript to code functions that return functions in order to avoid declaring global variables but the procedure is inefficient and unnecessary. More ...
Java Script to Dynamically Add, Remove, and Change Items in a Select List
This article shows you how to use Java Script to add, remove, and change items in a select list. More ...
Code to Drag and Drop an Image Anywhere on a Webpage
HTML5's drag-and-drop standard is designed to let you drag text or data from a textbox or table cell, to another textbox or table cell. But what if you want to drag an image, not to a target element, but to anywhere on a webpage. Then HTML5 drag-and-drop falls short. More ...
Easy Code to Add Mouse Trails to Your Webpage
Mouse trails cause the mouse pointer to be followed by a trail of small images when the user moves it. This makes it easier for the user to locate the mouse pointer on the screen. In this article, I give you Java Script code that will cause mouse trails on your webpage. More ...
Basic State Machines
A State Machine is a program, logic circuit, or mechanical device, that has a finite number of legal states. For example a traffic control signal can be red, yellow, or green. It can't be red and green. It can't be violet. More ...
Allowing Multiple Selections from Drop-down Select List
An HTML Select list is a form control used to create a drop-down list of items from which the user can select. You can allow the user to select multiple items in the list by setting its multiple attribute. More ...
Introduction to JavaScript Programming
JavaScript is a wonderful little programming language. It's a client-side, meaning it runs right on your local computer, not on the web server, and it's a scripting language meaning
it's run by an interpreter. More ...
Using the Java Script Array Object
When you want to work with multiple related values, you can use the Array object. The new keyword is required when creating an array of object type data, like an array of string objects. The new keyword is not required when creating an array of simple variable types, like integers. In this article you learn about mutidimensional arrays, and study examples of how to use each Array Object method. More ...
How Far Did the User Scroll?
In this article you learn how to use Java Script to determine how far a user scrolled your webpage before leaving, and how to log this data on the server with an example using ASP. More ...
Easy JavaScript Form Design
A form is an html element that allows users to enter information. To experiment with forms in JavaScript, replace the method and action attributes in the form opening tag with onSubmit='javascript return false;'
to prevent the form from being submitted to the server. More ...
