Js error Object doesn "t support this property or method Cause Analysis

Js error:
Object doesn' t support this property or method
Cause:
1: javascript keywords are used in js Code.
2: The method name conflicts with the form or div form name.
3. name = "submit" in the button"
4. When uploading an image, the system prompts: Object doesn' t support this property or method
Cause: the version of AspJpeg installed on the server is lower than version 1.4.
Solution: Install the AspJpeg component of version 1.4 or later.

I also encountered this problem and found that:Copy codeThe Code is as follows: function TfybxMoneyTotalCheck ()
{
........
Var TfybxMoneyTotalCheck = 0
}

The function name is the same as that defined by var. So this error is reported ..