javascript validation not working

[heaps21]

I have some basic and some a bit more complex form validation i.e.checking for valid chars, length of string etc. It works fine in IE but not in Mozilla. Isthis normal or have I done something horrendously wrong?!

Cheers, Andy

[Vladdy]

Maybe you used IE-only code such as document.all

[heaps21]

i have used things like document.getElementById in places, is that IE only code? What would be the cross-browser equivalent?

[Vladdy]

document.getElementById() is the correct cross-browser DOM method. If you are having problem in Moz, check the error with Javascript Console.
If you want more helpful answer post a link to the page you are having problem with.