Adding Splitter and Enabling drag & drop feature in PHP, Ajax(JQuery), MySQL

We are currently looking of an expert PHP, JQuery, MySQL developers for one of a very big project. We have planned to outsource the entire project to the best developer. But to know the actual capability of the developer, we are releasing just two modules. If the code standard and quality is good, we will give the entire full project to the developer. Our two requirements for the modules are given below: 1. Adding horizontal and vertical splitter for an div containers - a top two column layout container along with a bottom single column container 2. Dynamically drag and dropping a div component in a div container. The dropped div components id should be dynamically generated and saved in the database. We will tell the modules details and database structure to be used in brief, when we finalize the bid.