How to get months names

hi i build this function below to populate an dropdownlist:

        Dim dt As System.Globalization.DateTimeFormatInfo = System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat
        Dim ditem As New ListItem
        ditem.Text = "Mês"
        ditem.Value = -1
        ditem.Selected = True
        ddl_mes.Items.Add(ditem)
        For t As Integer = 1 To 12
            Dim ditem2 As New ListItem
            ditem2.Text = dt.GetAbbreviatedMonthName(t)
            ditem2.Value = t
            ditem2.Selected = False
            ddl_mes.Items.Add(ditem2)
        Next

but the months are in english, and i want the months to be on the language that the user has choose on his computer or webbrowser.

any help?