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/*
 * 作者： 阮一峰 http://www.ruanyifeng.com/
 * http://www.ruanyifeng.com/blog/2010/08/anti-frameset_javascript_codes_continued.html
 */
try{
　　top.location.hostname;
　　if (top.location.hostname != window.location.hostname) {
　　　　top.location.href =window.location.href;
　　}
}
catch(e){
　　top.location.href = window.location.href;
}