Started working on Advanced Search

NOTE: the results table for premade.php MIGHT be buggy, I haven't
checked it yet.
* advanced.php - couple of basic inputs are parsed, but only 1 SQL
statement is written so far
* index.html - started adding tags to hook it up to advanced.php
* simple.php - this is where the simple text search will be sent.
haven't started working on it yet
* all other files have minor modifications