Weaver Theme and random image headers with custom link

Hi !

This is my blog http://www.alergicblog.ro/

I need random images in header, and a custom link that this imgs should point to. I tried WP Bannerize in the Widget Header, but it breaks the theme on Iphone (a white area above de Content Area), and tagline missing on Tablet.
I tried the Code Insertion for header, and it works perfectly, but only with one image.
I could use the native random image chooser from WordPress itself. But then it target to Homepage. How could I change so it should point to a custom link ?
Thanks for anyone reading this topic and eventually helping with ideas 🙂