Use of buttons to change data object content

[GK5]

I'm trying to create a webpage that can display several information pages stored in Word (HTM) files.
In my example I use a rectagle containing a placeholder with this htm-code for the body:
<object data="....(path & filename)..." type="text/html" width=100% height=100%></object>
But this is static information displayed when the page is opened.

Is it possible to have something like this static example but where the content of the rectagle is changed when pressing a button.

Thanks
Frank