First, in head part put this: <meta name=”if:Endless Scrolling” content=”0” />{block:IfEndlessScrolling}<script type=”text/javascript” src=”http://static.tumblr.com/q0etgkr/J5bl3lkz1/tumblrautopagernopage.js”></script>{/block:IfEndlessScrolling} Then before {block:Posts} put this:
{block:IfEndlessScrolling}<div class = “autopagerize_page_element”>{/block:IfEndlessScrolling}
Next, after {/block:Posts} put this: {block:IfEndlessScrolling}</div>{/block:IfEndlessScrolling}
If you already have pages 1-… put this before and after custom html: {block:IfNotEndlessScrolling} … {/block:IfNotEndlessScrolling}