Write some Software

Subject: Teach me some JavaScript [login to view URL] lets people view the Google tiles for a given location. It is generated by: [login to view URL]\ pl I want to add two features to this code: - A slider that lets the user control the opacity of the overlay. - A search box so the user can choose what area to look at. The second thing I want to learn: on [login to view URL] (which is generated every minute by [login to view URL]), I also want a search box, but more importantly, I want the page to pull data from another source (I'll provide the source), and combine having the sun/moon/etc move using Javascript and loading data from another source when needed. I also don't want the page to refresh and lose the current zoom. Ideally, you could zoom in a lot and see the sun actually moving.