Which browser supports cloneNode and appendChild ?

Hi again.

I'm builting a multiple choice form, all dinamic, allowing users in the firts dinamic space to specify how many questions for mulitple choice they want, and a button to add them, so therefore as soon button is clicked the choices appear and a checkbox plus a textarea appears to fill.
My problem is, it works perfectly in IE8 and mozila and opera doesn't even work.

Been searching on the web, it maybe because i'm using the methods:
- cloneNode()
& appendChild();

Is this true, to support these browsers i need to find another way withous using these methods ?
Why haven't they supported, is there any serious disadvantage ?

then I guess it’s a problem within your code somewhere else, afaik Opera does support the DOM (even more than IE)

Thx for answering.
In that case, i will have to review all the code i have.
I'm using Antechinus Javascript Editor, is there any software better to use ? That atleast spots these errors in coding.

BR

any decent code editor with sufficient code highlighting will do. to track down the problem, use Opera’s developer extension (Dragonfly) and the JavaScript Error Console.

My favorite brwoser is opera, and i had it all the time (DragonFly) and didn't know !
Regarding Firefox i'm using FireBug.

But still i'm a beginner on this, it will take a while untill take full potential of it,.
But thank you for the tips.

yea, Firefox is the only one that doesn’t come with built-in developer tools (but since there is FireBug, why should it …) and never forget the Error Console, that should be the first place to look.

Well, i'm using dragonfly right now,and the only error that appears is:
Would appreciate if ya could translate it.


One good thing was:

Just added an if to ensure that if it was null, didn't proceed. So this error was fixed. But remaining critical error still haven't fixed.

there is somewhere an Exception thrown, which is not caught. from the looks of it, it comes from a DOM method and its input parameter is wrong.