(Tip courtesy of Roma, AKA Klimt)

When a form button is used as a link to load an i-frame, the standard Object Editor and Quick Edit Link tab fields are not useful as you cannot specify the i-frame as a target. Sure, you can enter the target information in the Code field, but SiteSpinner ignores this data as it builds the onClick code for the button. This is because the target statement can only be used with HTML links while the onClick event is used by javascript.

To get around this shortcoming, use the form button's own Code field to specify the onClick code to load the i-frame. For example, if your i-frame has a geometry name of myframe, and you want to load a page from your site named aboutus.html, then the button's Code field would contain:

onClick="myframe.location='aboutus.html';"

If the page you want to load in the i-frame is off-site, then specify the full URL as the location value; e.g.,

onClick="myframe.location='http://www.google.com';"