Miscellaneous

This snippet gets the next sibling and previous sibling of an element, using the element.nextSibling and element. previousSibling properties.

This snippet can be used to validate a file’s size and display it, for instance when a file is being submitted for upload.

This snippet gets the height of an iframe’s content and then sets the height of the iframe to match.

This script makes a random sized Christmas tree with random lights.

Add a quiz to your Web page without using a server-side script. Easy to set-up. Questions and answers are stored in a multi-dimensional array format in an external file. The quiz is marked in real time, and once answered, questions are set to read-only. A summary of the users score is alerted at the end.