This value corresponds to the ENCTYPE="..." tag attribute in the <FORM> tag that represents this form object.
This specifies a MIME type for the form when it is submitted to a server.
The value you might store in this property is ignored by MSIE version 3 because it can only read-access the property.
This property is not supported on the WebTV platform.
The DOM specification at level 1 specifies that this property should be called enctype and not encoding. In MSIE, the enctype property has a control attribute while the encoding property does not. This suggests that the encoding property is simply mapped to the enctype property internally.