1. jQuery topLink Plugin
The topLink jQuery plugin developed by David Walsh, allows you to fade in a “to the top” link when the users scrolls down on the page.

This tutorial will help you build a scroll to top link, that appears when the user scrolls down, and disappears when users reach the top of the page using a combination of CSS and jQuery.

Here’s a simple Scroll to Top button that hovers in the bottom right corner of your screen. he code is largely adapted from Brian Cray and David Walsh, but it’s a combination of the two ideas with the addition of a fade effect on the button and smooth scrolling action.

Here’s an unobtrusive, easy-to-install, jQuery script that adds a fading scroll to top link with animated scrolling. the script degrades gracefully, leaving nothing but a normal <a href > link.

Inspired by the great idea of David Walsh’s jQuery topLink Plugin, Matt Varone made a similar plugin but with two key differences, this one does not require you to add extra html markup or extra plugins to function. It will only work when JavaScript is turned on.

This script displays a stationary control at the lower right corner of the window that when clicked on gently scrolls the page back up to the top. Instead of always being visible on the user’s screen, the script lets you specify how far down the page the user is at (in pixels) before revealing the control.
