跨frame加opti value="http://www.dedecms.com/web-art/htmlbase/Javascript/20040608/test">
微软的解释如下： In general, at least in the older browser versions, performance seems to improve if you call methods on the target frame if they are stored there as well. This is particularly relevant when trying to add options to a select box in another frame. Make sure you create the option in that other frame so you are adding it to a local select box, instead of trying to cross frame boundaries.

http://msdn.microsoft/library/default.asp?url=/library/en-us/dnwebteam/html/Webteam02052002.asp

无忧站长学院，建站自然无忧www.5ucms.org