For my work I am making a spreadsheet that collects images from the internal web.
This is working fine for 5 of the 7 images. The last 2 images can only be obtained by first doing:
Data --> From Web and loging into the application

Is is possible to automate the loging in when trying to obtain the images.
The code I am using now is

import_counter = 1
Do While import_counter < Application.CountIf(Sheets("Sheet2").Range("$A$1:$A$10"), ">""") + 1
    Set ImportGraph = Worksheets("Sheet2").Range("Sheet2!$A$" & import_counter)
    PictureURL = ImportGraph
    If Sheet3.Shapes.Count = 0 Then
        With Sheet3.Pictures.Insert(PictureURL)
            .Left = Sheet3.Range("$A$1").Left
            .Top = Sheet3.Range("$A$1").Top
            Application.ScreenUpdating = True
        End With
    Else
        With Sheet3.Pictures.Insert(PictureURL)
            .Left = Sheet3.Range("$A$" & (Sheet3.Shapes.Count - 1) * 14).Left
            .Top = Sheet3.Range("$A$" & (Sheet3.Shapes.Count - 1) * 14).Top
            Application.ScreenUpdating = True
        End With
    End If
    import_counter = import_counter + 1
Loop
Else
import_counter = 1
Do While import_counter < Application.CountIf(Sheets("Sheet2").Range("$A$1:$A$10"), ">""") + 1
    Set ImportGraph = Worksheets("Sheet2").Range("Sheet2!$A$" & import_counter)
    PictureURL = ImportGraph
    If Sheet3.Shapes.Count = 0 Then
        With Sheet3.Pictures.Insert(PictureURL)
            .Left = Sheet3.Range("$A$1").Left
            .Top = Sheet3.Range("$A$1").Top
            Application.ScreenUpdating = True
        End With
the images that can't be obtained have a link simular to the one below

our server /cactie/graph_image.php?action=view&local_graph_id=129&rra_id=3

Is it possible to obtain this images without having to login manually before starting the macro.

Thanks in advanced