ASP.Net Get Value from Cookies จะต้องทำยังไงคะ..............

<%@ Page Language="VB" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Imaging" %>

<script runat="server">

	Sub Page_Load(sender As Object, e As EventArgs)	
		Dim intWidth,intHeight As Integer
		Dim FileName,NewFileName As String

		intWidth = 	100 '*** Fix Width ***'
		intHeight = 0   '*** If = 0 Auto Re-Cal Size ***'

ต้องการให้ filename รับค่าจาก cookies ทำยังไงคะ
		FileName = "Images/"request.cookies("pp")"
		
แล้วก็ให้ newfilename รับค่าจาก filename นะคะ
		NewFileName = "Images/New_Mygirl.gif"


		Dim objGraphic As System.Drawing.Image = System.Drawing.Image.FromFile(Server.MapPath(FileName))

		Dim objBitmap As Bitmap
		'*** Calculate Height ***'
		If intHeight > 0 Then
			objBitmap = New Bitmap(objGraphic, intWidth, intHeight)
		Else
			If objGraphic.Width > intWidth Then
				Dim ratio As Double = objGraphic.Height / objGraphic.Width
				intHeight = ratio * intWidth
				objBitmap = New Bitmap(objGraphic, intWidth, intHeight)
			Else
				objBitmap = New Bitmap(objGraphic)
			End If
		End If
		
		'*** Save As  ***'
		objBitmap.Save(Server.MapPath(NewFileName), objGraphic.RawFormat) 
		
		'*** Close ***'
		objGraphic.Dispose()
		
		'*** Nothing ***'
		objBitmap = Nothing
		objGraphic = Nothing

		'*** View Images ***'
		Me.imgPicture.ImageURL = NewFileName
		
	End Sub
</script>