A scale factor by which coordinates which come from the database should be multiplied to give coordinates suitable for plotting on the image. Useful, for instance, if a set of maps uses 6 figure grid coordinates but the database only holds 4 figure coordinates.

The class used for markers created for search results. By default result.

You should call this when your search form is in place. It records the URL so that the system can step back to that form at any time.

Show the form if it has been replaced by another page.

This is the main search call which you would use on a button or link.

Call at the start of your result list.

This should be called to put a result onto the image. The arguments are as for markers_add except that the class is always search_marker_class and the coordinates will be scaled according to the search_map_data_scale.

Highlights the result named name.

Called when a result is highlighted.

Called just before a search so you can take note of which image is being shown to the user.

Called just before a search so you can take note of whether a rectangle is selected. Rect is not null only if the user has selected a region.

You must define this function, which should return the window where the search form is loaded.