Minor edit a php script

In the “Post an Ad’” feature can I suggest the following? a. Instead of “Product Title” and “Product Model” fields as mandatory, I want to have the following mandatory categories? i. Book Title ii. Author(s) iii. Edition iv. ISBN# You can remove the “Product Title” and “Product Model” fields and replace them with the suggested above , I must be able to search the site using any one of these mandatory fields. Make the “Location”, “Tags” and “Image” fields optional instead of mandatory. In the “Post an Ad” feature the following message appears in the middle of the screen: Oops something went wrong This page didnt load Google Maps correctly.