JSIE and FF compatibility problem summary _ javascript skills

Here we will replace InternetExplorer with IE, and replace MozzilaFF with MF. We will summarize some of the knowledge that js fans will learn. 1. document. form. item Problems
Existing problems:
Many statements such as document. formName. item ("itemName") exist in the existing code and cannot be run in MF.
Solution:
Use document. formName. elements ["elementName"]
Others
See 2
2. Collection class Object Problems
Existing problems:
In the existing Code, many collection class objects are used (), which is acceptable to IE and cannot be used by MF.
Solution:
Use [] as the subscript operation. For example, change document. forms ("formName") to document. forms ["formName"].
For example, change document. getElementsByName ("inputName") (1) to document. getElementsByName ("inputName") [1]
3. window. event
Existing problems:
Window. event cannot be run on MF.
Solution:
MF events can only be used in the event. This problem cannot be solved. This can be changed as follows:
Original code (can be run in IE ):

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