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