asp.net/vb.net reusable code

Hi

 i want to put below code into app_code folder  as myTask.vb file which cna be re-usable accross the project in .aspx pages.

Currently, i do below
in my .aspx page,

i create     <asp:Literal runat="server" ID="litForm" />. in code behind based o i populate this in "litForm_Load" function and i make "litForm" visible/invisible based on some condition.
 Protected Sub litForm_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles litForm.Load

      Dim sbForm As New StringBuilder
  sbForm.AppendLine("<form action=""some website"" method=""post"">")
sbForm.AppendLine("<input type=""hidden"" name=""myV1"" value=""mytest1"" />")
        sbForm.AppendLine("<input type=""hidden"" name=""myv2"" value=""" & ConfigurationManager.AppSettings.Item("mytest2") & """ />")
 sbForm.AppendLine("<input type=""image"" name=""submit"" border=""0"" src=""mywebsite/mybtng.gif"" alt=""this is my test onlne"" />")

 sbForm.AppendLine("</form>")

        litForm.Text = sbForm.ToString



when the user cliks on the image (mybtng.gif), page will be redirectred to the action url mentioned in <form> attribute.


I want to make above code  re-usable accoress the projects. just wherever they need just reuse it.
Please help me.