Creating a Multi Field Search screen in Dynamics CRM

Few months ago I was reading a fantastic post from Adi Katz about how to dynamically compose Fetch XML queries and display them on a native CRM Grid using the Advanced Functionality. The post was great and the JavaScript code provided by Adi works like a charm. After some playing I got inspired and I thought the technique could be really useful to create a multi-field search on Dynamics CRM.

Basically what I mean with multi field search is a fairly typical advanced search screen that lots of business applications include. This screen allows the user to enter values for one or more fields and search records matching that criteria. The main difference with the out of the box quick search is that the objective here is to provide several different search terms to be applied to specific fields. I think you get the idea, anyway a picture is worth more than thousand words.