I need to modify some company web pages that include a form for asking the 
company departments questions, such as service dept, etc. As the forms are 
currently built there is some field validation but no cookies. This info 
is saved in a mysql database, problem is, there are duplicate entries, 
every time an  end-user posts a question. What kind of code do I need to 
add to these existing pages to prevent duplicate entries in the database? 
(Manually scanning through and deleting dupes is a real drag.) And what 
about cookies? Could I make use of these on these pages? I haven't worked 
with cookies yet, so am not sure where to start with that part.

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