复制代码 代码如下:<script type="text/javascript"> /** * function loadScript * Copyright (C) 2006 Dao Gottwald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * Contact information: * Dao Gottwald <dao at design-noir.de> * Herltestra?e 12 * D-01307, Germany * * @version 1.5 * @url http://design-noir.de/webdev/JS/loadScript/ */ function loadScript (url, callback) { var script = document.createElement('script'); script.type = 'text/javascript'; /* should be application/javascript * http://www.rfc-editor.org/rfc/rfc4329.txt * http://connect.microsoft.com/IE/feedback/ViewFeedback.aspx?FeedbackID=84613 */ if (callback) script.onload = script.onreadystatechange = function() { if (script.readyState && script.readyState != 'loaded' && script.readyState != 'complete') return; script.onreadystatechange = script.onload = null; callback(); }; script.src = url; document.getElementsByTagName('head')[0].appendChild (script); } </script> 实例： 复制代码 代码如下:<script type="text/javascript"> // prevent google analytics from slowing down page loading window.addEventListener ('load', function() { loadScript ('http://www.google-analytics.com/urchin.js', function() { window._uacct = 'UA-xxxxxx-x'; urchinTracker(); }); }, false); </script>

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本文标题：Code：loadScript( )加载js的功能函数

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