infinite scroll code thing

      {block:IndexPage}<script src="//ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js"></script>

<script src="http://static.tumblr.com/6hsqxdt/vmwm2rb4g/infinitescrolling.js"></script><script src="http://static.tumblr.com/6hsqxdt/QBym35odk/jquery.masonry.js"></script>

<script>
$(function(){
var $container = $('#postmargin');
$container.imagesLoaded(function(){
$container.masonry({
itemSelector: '.posts',
});
});
$container.infinitescroll({
itemSelector : ".posts",
navSelector : "div.pagination",
{block:ifinfinitescroll}nextSelector : ".pagination a#next",{/block:ifinfinitescroll}
{block:ifnotinfinitescroll}nextSelector : "none",{/block:ifnotinfinitescroll}
loadingImg : "",
loadingText : "<em>patience is a virtue, so hold on while i load</em>",
bufferPx : 10000,
extraScrollPx: 12000,
},
function( newElements ) {
  var $newElems = $( newElements ).css({ opacity: 0 });
$newElems.imagesLoaded(function(){
$newElems.animate({ opacity: 1 });
$container.masonry( 'appended', $newElems, true );
});
}
);
});
</script>{/block:IndexPage}