Returns or sets a Variant that represents the value of the onkeydown attribute that is the name of the script to run when the onkeydown event fires.
expression Required. An expression that returns one of the objects in the Applies To list.
See also the onkeypress and onkeyup properties.
The following example sets the onkeydown attribute for the BODY element in the active document.
ActiveDocument.body.onkeydown = "script()"