; Here is the same Google example, but this submits the form by giving focus to the "Google Search" button 
; and sending an "Enter" from the keyboard instead of usng the _IEFormSubmit function. 

#include <IE.au3>

$oIE = _IECreate()
_IENavigate($oIE, "http://www.google.com")

$oForm = _IEFormGetObjByName($oIE, "f")
$oQuery = _IEFormElementGetObjByName($oForm, "q")
$oButton = _IEFormElementGetObjByName($oForm, "btnG")

_IEFormElementSetValue($oQuery, "place your search string here")
$oButton.focus()
Send("{Enter}")
_IELoadWait($oIE)

Exit