For the security concern, client-side JavaScript does not provide any way to read, write, create, delete, or list files or directories on the client/server computer. But one can use Ajax to read the file. This code snippet can be used to read from a text file.

The JavaScript workaround to enable HTML5 elements in versions of Internet Explorer that do not support it. That is widely known as HTML Shiv. There is also a version called HTML Shim which does the same thing.

This is one of the useful function in my code bank. This function can be used to find the elements by css class name. If you don't use jQuery, it will be definitely helpful for you.

This can be used to load a javascript file dynamically.

To get current domain name of the page.

This is a JavaScript that helps you to get the URL Parameters of a page.

When textbox is empty, it show the watermarked text. When it get focus the watermarked text disappears. When it lost focus the watermarked text appears if there is no text.

Easiest way to retrieve all the input elements within a page.

This script highlight/select all text of textarea or text field when on click.

Cookie is a small text file that's stored in user's browser. They're mostly used for storing user preferences. It save the data with name-value pair format. Following function can be used to create and retrieve cookie values.