Are you looking to hyperlink to other pages within the form e.g. a contents page, or to hyperlink to websites or other document? Both can be achieved.
To link to another page use xfa.host.setFocus("address"); in the click event of the button. The address will be determined by the hierarchical structure you have given the form, starting with Form1.Page_Name.Textfield(x). If the page you want to jump to doesn't have a textfield, create one anyway but just don't give it a border.
When you click on the jump button, the cursor will jump to this textfield.
For a hyperlink to a website or server held document, again using the click event use:
app.launchURL("fulladdress", true);
Incidentally, before you enable usage rights in Acrobat, you can create bookmarks.