Need help on search function

Hello everyone.

I am supposed to do a search function. The search function will be able to retrieve anything related to what you have typed. For example, If I type "04" in the search textbox, which meant 4th storey, it will be able to retrieve all the information pertaining to 04. Of course, if i type the full information, it will return the specific result that I am finding.

Besides that, I will have a drop down list which will include all the different level of storeys. It will be linked to the search textbox in which when you type "04", and you used the dropdownlist and go to "4th storey", it will zoom into the 4th storey straightaway.

For now I have the interface drawn out, but I have no idea how to write the code to start the function working. I will appreciate it if there is any help given to me. Thanks.

Sincerely,
jianwei