How to Execute Javascript in IE

Hi Everyone,

I am trying to execute a Javascript in IE. here is my code.

Sub Excel_E()

Dim shellWins As ShellWindows
Dim objIE As InternetExplorer

Dim strScript As String

Set shellWins = New ShellWindows

If shellWins.Count > 0 Then
     'Get IE
    Set objIE = shellWins.Item(0)

strScript = "$find('ReportViewerControl').exportReport('EXCEL');"

objIE.document.parentWindow.execScript strScript, "JScript"



End If

End Sub

I am getting Run-Time error '438': Object Doesn't support this property or method at this line

objIE.document.parentWindow.execScript strScript, "JScript"

Am I missing something here. Please help