Following is a simple procedure that will help you create a frameset using a form or a page design element in lotus notes.
1.Create a Notes Database and ensure that you have a user by the name Anonymous with Editor or higher access, if you create the database in local
2.Create a form design element with name "myForm.html"
3.In the "Defaults" tab of the form property box enable the following option
On Web Access -> Content Type -> HTML
4. Now copy paste the following code into the form
5. Now preview your form on the browser using a url similar to the following,