jQuery and JavaScript in Firefox 3 and IE7+

I'm learning developing in javascript and jQuery. I'm puzzled on why the firefox and IE are soo different in handling javascript and jquery functions.

Firefox seems to be doing exactl开发者_如何学编程y what I want it to do, when the IE is all over the place and quite often I can't find a reasonable explanation why certain event didn't fire off or variable didn't get set.

Is there anything in particular that I should avoid while developing for these browsers?

Thank you

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Really, you should avoid anything prorietary, or non-standardised. You are most likely to find this when using versions of IE, and for it to not work in Firefox rather than vice-versa.

That said, if you are using jQuery, then a lot of the cross browser concerns should be handled for you automatically. So I suspect the issues you are encountering are more related to your own code than anything else.

Can you post some samples so we can get a better idea of what might be the issue?