how can i call this button in excel vba

[wesley14]

class="urPagDummy urBtnIco urSTbvBtnPgDown" onkeydown="if 
(sapUrMapi_Image_checkClick('htmlb_1452_htmlb_1436_72',event)){return htmlbDoEvent
(this,'S','_dflt','32','htmlb_1452_htmlb_1436',72,33,'',5,'pageDown','1','20','29','L')

what I want to do is click the page down button.. I think that is the code there from html source, but it seems evertime you load it it gives you a random/different ID.

 

[ParamRay]

.
.

Use this instead:

Private Sub CommandButton1_Click()

    Window.LargeScroll Down:=1

End Sub