a new start

_includes/scripts/load-js.js

@@ -0,0 +1,62 @@
+// Copyright (c) 2017 Florian Klampfer <https://qwtel.com/>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+// Compress via uglify:
+// uglifyjs load-js.js -c -m > load-js.min.js
+!(function (window, document) {
+	"use strict";
+
+	function addEvent(el, type, cb, opts) {
+		if (el.addEventListener) el.addEventListener(type, cb, opts);
+		else if (el.attachEvent) el.attachEvent("on" + type, cb);
+		else el["on" + type] = cb;
+	}
+
+	window.loadJS = function (src, cb) {
+		var script = document.createElement("script");
+		script.src = src;
+		if (cb) addEvent(script, "load", cb, { once: true });
+		var ref = document.scripts[0];
+		ref.parentNode.insertBefore(script, ref);
+
+		return script;
+	};
+
+	window._loaded = false;
+	window.loadJSDeferred = function (src, cb) {
+		var script = document.createElement("script");
+		script.src = src;
+
+		function insert() {
+			window._loaded = true;
+			if (cb) addEvent(script, "load", cb, { once: true });
+			var ref = document.scripts[0];
+			ref.parentNode.insertBefore(script, ref);
+		}
+
+		if (window._loaded) insert();
+		else addEvent(window, "load", insert, { once: true });
+
+		return script;
+	};
+
+	window.setRel = window.setRelStylesheet = function (id) {
+		var link = document.getElementById(id);
+		function set() {
+			this.rel = "stylesheet";
+		}
+		addEvent(link, "load", set, { once: true });
+	};
+})(window, document);