Asp相对路径转换为绝对路径函数

'================================================
' 函数名：ChkMapPath
' 作  用：相对路径转换为绝对路径
' 参  数：strPath ----原路径
' 返回值：绝对路径
'================================================
Function ChkMapPath(ByVal strPath)
 Dim fullPath
 strPath = Replace(Replace(Trim(strPath), "/", "/"), "//", "/")

 If strPath = "" Then strPath = "."
 If InStr(strPath,":/") = 0 Then
  fullPath = Server.MapPath(strPath)
 Else
  strPath = Replace(strPath,"../","")
  fullPath = Trim(strPath)
  If Right(fullPath, 1) = "/" Then
   fullPath = Left(fullPath, Len(fullPath) - 1)
  End If
 End If
 ChkMapPath = fullPath
End Function