actually, i’m not willing to recommend it, because it’s in beta state, somewhat unstable.. but i found it very useful or maybe i can say powerful than ever, so i post this article.

you can get it from http://www.getfirebug.com/

i could hardly image the web development without firebug, it’s only few weeks ago..

P.S. i got an lesson(you know my last post), even most great tools can’t make people smarter. if you’re fool, debugging time spent will be same whatever your tool is.. so in any case, don’t blame this splendid tool..

when developing ajax uploader using hidden iframe, i found some strange things..

it doesn’t work
<form target="frame">
<input>
</form>
<iframe name="frame">

but, it works fine
<form target="frame">
<iframe name="frame">
<input>
</form>

i spend all day for this problem.. please tell me what the frame is…

P.S. there’s two kind of ajax uploading technic. one is set target like above example
the other is using upload form in iframe’s src.. both have the same problem..

these useful articles came from ie7 developer’s blog.. there’s something immediately usable..

http://blogs.msdn.com/ie/archive/2006/08/28/728654.aspx
http://blogs.msdn.com/ie/archive/2006/11/16/ie-javascript-performance-recommendations-part-2-javascript-code-inefficiencies.aspx