There are dozens of jQuery plugins on the internet to help you create beautiful galleries. Most of them are more aesthetic than functional. This script helps you create a simple and lightweight jQuery photo gallery using unobtrusive JavaScript technique which allows users who have their JavaScript off still use the gallery.

A popular question on forums is how to create random numbers in jQuery. We don't really need to use jQuery for a simple task like this. The Math.random() method in JavaScript can be used to quickly create a random number between 0 and 1

To check if an element is visible using jQuery, you can use .is(':visible'). If you wanted to check whether an element is hidden then you would use .is(':hidden) instead.

Alternating row colors in jQuery can be easily done using :even and :odd selectors. Let's apply these selector to a list and see the effect.