If you mean how to add links within the DHTML window that manipulates itself, such as move it, that's possible. Once you've initially opened a DHTML window, ie:
Inside the DHTML window, you can, for example, create a link that moves it by using the code
var googlewin=dhtmlwindow.open("googlebox", "iframe", "http://google.com", "Google Web site", "width=700px,height=450px,resize=1,scrolling=1,center=1", "recal")
parent.googlewin to reference itself from the main page:
Try searching the forums for this, as there has been a few past discussions on this.
<a href="#" onclick="parent.googlewin.moveTo('middle', 'middle'); return false">Center Window 3 here</a>