Get image sizes from meta

meta.js

function getMeta(url, fn) {
			var sizes = {};
			$('<img />').attr("src", url).load(function() {
				var dims = {
					w: this.width,
					h: this.height
				};
				$(this).trigger({
					type: "imgLoaded",
					height: dims.h,
					width: dims.w
				});
			}).on('imgLoaded', function(event) {
				sizes = event;
				window.t1 = sizes;
				fn = fn || function() {};
				fn(sizes);
			});
			
		}