AFG questions

• a "forgot user password" standard class or script in php/mysql environment?
• how do I add a foreign key pointing to the same table using phpMyAdmin?
• How do you put the magnifying glass and "search" in the search input box, like in StackOverflow?
• how do I make the URL's in Ruby on Rails SEO friendly knowing a @vendor.name?
• How to generate the random default "gravatars" like on Stack Overflow?
• How do I do a fuzzy match of company names in MYSQL with PHP for auto-complete?

AFG answers