当前位置: 首页 > 图文教程 > 网络编程 > Javascript > Code:loadScript( )加载js的功能函数

Javascript
java编程教程:JDBC技术简介
浅析Ajax为什么优于JSF
JDK5.0中collection都有哪些变化
对性能和可扩展产生深远影响的J2EE
HTTP消息头字段深入介绍
java教程:网站开发中的入侵问题检测
简要介绍实现多线程环形缓冲的方法
DOM文档如何与XML文件互换?
Java教程:如何实现FTP功能
Bing API的简单了解
Javascript对网页输入框的字数限制
建立支持移动设备访问的网站sitemap
window.onload和body onload
JS教程:window.event对象
网页漂浮广告的关闭的实现代码
JavaScript教程:网页浮动定位提示效果
常用的Javascript代码高亮脚本
滑动导航菜单的变体使用
解决AJAX中文回传乱码
Javascript开发是否预留退路?

Javascript 中的 Code:loadScript( )加载js的功能函数


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-09-12   浏览: 416 ::
收藏到网摘: n/a

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>