Pop In Window in Ajax client

[#1]

I want to create a pop in/ pop up window in the Ajax client. I can do a pop up window which then opens a fileupload page in order for my user to upload a txt document. But I would really like to create a DHTML pop in window so I can control the size of the window open and so I can have a more integrated interface. I can of course store the .js file in the template file but how do I call a custom href inside of QlikView?

Like this.

<a href="#" onClick="ajaxwin=dhtmlwindow.open('ajaxbox', 'ajax', 'external.htm', 'Ajax Win Title', 'width=650px,height=400px,left=300px,top=100px,resize=0,scrolling=1'); return false">Create/ Open Ajax Window</a>