Free simple AJAX library is an extremely light weight AJAX library with which you can make an AJAX call with only one line of code. Size: The size of the library is only 3 KB.

How to make a DIV movable using JavaScript. An absolute positioned DIV can made movable by adding a bit of JavaScript logic. I have written a JavaScript to make a DIV movable, the size of the script is only 4KB. You can download the script with example: