Lazy loading and triggering the AddThis Share More widget on click of a custom element

addthis-custom-share.html

<a href="#share" class="share">My custom sharing button</a>

<!-- Put the real addthis Share More link somewhere and hide it -->
<a class="addthis_button_compact display_none"></a>

addthis-lazyload.js

var customAddthis = {
	init: function() {
		var $addthisButton = $('.addthis_button_compact');
		
		$('.share').on('click', function(e) {
			e.preventDefault();
			
			Modernizr.load({
				load: '//s7.addthis.com/js/300/addthis_widget.js#pubid=ra-xxxxxx',
				complete: function() {
					if (addthis) {
						var attempts = 0;
						var addthisinterval = window.setInterval(function() {
							// AddThis is slow, so we'll wait for a maximum of 15 seconds
							if (attempts > 50)
								window.clearInterval(addthisinterval);
							
							if ($addthisButton[0].onclick) {
								$addthisButton.trigger('click');
								window.clearInterval(addthisinterval);
							}
							
							attempts++;
						}, 300);
					}
					
				}
			});
		});
	}
};

customAddthis.init();

Thanks for this. I made a few updates, primarily to make it more configurable. Update your Gist if you wish.
https://gist.github.com/eightdotthree/29cbf8b2b1243b5deca7