Font loader

webfonts.js

(function(win, doc, undefined) {

	// sanity check - is it a decent browser
	if('addEventListener' in win && 'localStorage' in win && 'querySelector' in doc) {

		// https://gist.github.com/scottjehl/5406853
		var injectref = doc.getElementsByTagName('script')[0],
			loadCSS = function(href) {
				var fontslink = doc.createElement('link');

				fontslink.rel = 'stylesheet';
				fontslink.href = href;

				if(injectref && injectref.parentNode) {
					injectref.parentNode.insertBefore(fontslink, injectref);
				}
			};

		// Use the Network Information API where it's available
		if(win.navigator.connection) {
			var connection = win.navigator.connection,
			    slow = connection.type === 3 || connection.type === 4 || connection.bandwidth <= 0.25;
		}

		if(!slow) {
			loadCSS('css/fonts.css');
		}
	} // eof sanity check


})(this, document);