Build a Website

I have built a wix website and I want to build in a search bar that has predictive text (Datalist ID) and new menus appearing on selection of each field (Select ID, On Change), each with predictive search. May be able to be done with HTML 5 but not sure, may require Java. First field is Universities (ie. Univeristy of Sydney) Second field is the subject (i.e. Accounting, Finance, etc.) Third Field are subject codes (i.e. ECON1001) Each field should have predictive search capabilities, and final field selection takes the user to a new page. I have all data lists for each search bar and just need someone to organise my code so it works. Some CSS would be helpful also, to make it look good and suit the website. Get in touch for more details. Thanks.