只需检查它是否:visited有财产
if ($("a#theLink:visited").length) {
//anchor tag with id of "theLink" has been visited
}
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编辑:Remy Sharp制作了一个jquery插件来帮助检测访问过的链接.
edit2 看起来这就是mozilla现在修复的安全问题,http://hacks.mozilla.org/2010/03/privacy-related-changes-coming-to-css-vistited/