#include <GUIConstantsEx.au3>
#include <IE.au3>
Global $a_URL[2]=['http://www.autoitscript.com', 'http://autoit-script.ru']
$hGUI = GUICreate("", 500, 500)
$hTab = GUICtrlCreateTab(10, 10, 480, 20)
For $i = 0 To 1
GUICtrlCreateTabItem($a_URL[$i])
Next
GUICtrlCreateTabItem("")
$oIE = _IECreateEmbedded()
$h_IE=GUICtrlCreateObj($oIE, 10, 30, 480, 460)
_IENavigate($oIE, '')
GUISetState()
While 1
Switch GUIGetMsg()
Case $GUI_EVENT_CLOSE
Exit
Case $hTab
$iCurrTab = GUICtrlRead($hTab)
_IENavigate($oIE, $a_URL[$iCurrTab], 0)
EndSwitch
WEnd