You can display a fixed size pop-up window by inserting the below code into an HTML editor.
Here's an example, you will have to customize the HTML to reference your specific page:
| <TABLE><TBODY><TR><TD> <SPAN class=popup onclick="javascript:window.open('<PrimaryURL>/CustomPages/privacy_policy.htm','popup1','toolbar=no,width=400,height=550');">We protect your privacy.</SPAN> </TD><TR></TR></TBODY></TABLE> |