How to Disable the Browser Back Button
Let's assume that you have a legitimate reason for disabling the back button. Maybe you need to restrain the user within a multi-page form. In this article, I show you how to disable the browser's Back button with a only few lines of Java Script code. More ...
Regular Expressions Lookarounds
In this article you learn how to match a pattern only when it comes after another pattern (or after not that pattern) or only when it comes before another pattern (or before not that pattern). More ...
Java Script Message Boxes
Java Script provides three different types of message boxes that allow you to display a short message to the user, or request a bit of information from the user. If one of these built-in message boxes don't suit your needs, this article shows you how to create your own custom message box. More ...
Java Script Comparison Operators
A comparison operator compares two values and returns the result "true" or "false". For comparing numeric values the operators perform the same as they do in algebra. For comparing character strings each character in the strings are converted to their ASCII values and then a numeric comparison is made. More ...
Use JavaScript parseInt() and parseFloat() to Convert Strings to Numbers
If the results of a mathematical operation in your script are not what you expected, make sure that you convert any numbers represented as strings to the actual number data type before performing the operation. More ...
JavaScript to Copy and Paste Text to the Clipboard
In some applications, rather than the user's selection, you may want to copy the contents of a specific html element to the clip board. Or when the user initiates a Paste, you may want to direct the contents of the user's clipboard to a specific html element on the webpage. Here is the code for this. More ...
Regular Expressions Intervals
Regular expression intervals tell us about the number of occurrences of a character in a string. Curly braces are used to define a precise count of how many occurrences you are checking for. More ...
Calculators For Your Web Site : Length Units Converter
In this article, I provide you with Java Script code for a Length Units Converter. For example, your visitor can enter a length in English feet and it will be converted to a length in metric meters. I keep the code as simple as possible. 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 ...
Calendars for Your Website
I'll start by showing you how to code a basic calendar that shows the current month with the current day highlighted. Then, how to code a webpage that can display several months simultaneously, and finally, a clickable appointments calendar. More ...
Password Protection Using the Frames Method
One method of password protecting your webpages is to use a cookie, but cookies are unreliable. If you can't trust a cookie to store the information that the user is logged in, where can you store it? In this example I'll show you how to use frames for JavaScript password security. More ...
Submit Forms Without CGI
There are many reasons why you might not want to use CGI forms on your Web site. For example your web site may be on a free host that does not allow custom CGI scripts. You may want to conserve bandwidth on your Web server. Or maybe you just don?t want the hassle of CGI programming. More ...
