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copied!<p><strong><a href="https://stackoverflow.com/questions/2817042/determining-when-scrolled-to-bottom-of-a-page-with-javascript">How to tell when you're at the bottom of a page</a></strong>: </p> <pre><code>if ( document.documentElement.clientHeight + $(document).scrollTop() >= document.body.offsetHeight ) { // Display alert or whatever you want to do when you're // at the bottom of the page. alert("You're at the bottom of the page."); } </code></pre> <p>Of course you want to fire the above whenever the user scrolls:</p> <pre><code>$(window).scroll(function() { if ( document.documentElement.clientHeight + $(document).scrollTop() >= document.body.offsetHeight ) { // Display alert or whatever you want to do when you're // at the bottom of the page. alert("You're at the bottom of the page."); } }); </code></pre> <p><strong><a href="http://jsfiddle.net/Lrjkq/" rel="nofollow noreferrer">Here is a jsFiddle example</a></strong> that fades in a "You're Done! Scroll to Top of Page" link when the user has scrolled to the bottom of the page.</p> <p><strong>References:</strong> </p> <ul> <li><strong><a href="http://api.jquery.com/scroll/" rel="nofollow noreferrer"><code>.scroll()</code></a></strong> </li> <li><strong><a href="http://api.jquery.com/scrollTop/" rel="nofollow noreferrer"><code>.scrollTop()</code></a></strong> </li> <li><strong><a href="https://developer.mozilla.org/en/DOM/element.offsetHeight" rel="nofollow noreferrer"><code>offsetHeight</code></a></strong> </li> <li><strong><a href="https://developer.mozilla.org/en/DOM/element.clientHeight" rel="nofollow noreferrer"><code>clientHeight</code></a></strong></li> </ul>

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